From: Matthew Davis <mdavis_at_physics.uq.edu.au>

Date: Mon, 04 Aug 2008 10:36:06 +1000

Date: Mon, 04 Aug 2008 10:36:06 +1000

The following message was sent to the matts_arxiv list by Matthew Davis <mdavis_at_physics.uq.edu.au>

Treading water it seems... I'm back home this coming week, then maybe we will

catch up.

This week there were 21 new preprints and 6 replacements:

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arXiv:0807.1886

Date: Fri, 11 Jul 2008 16:37:15 GMT (89kb)

Title: Crystallization of trions in SU(3) cold atom gases trapped in optical

lattices

Authors: Rafael A. Molina, Jorge Dukelsky, Peter Schmitteckert

Categories: cond-mat.str-el cond-mat.mes-hall

Comments: 4 pages 6 figures

\\

Cold Fermionic atoms with three different hyperfine states confined in

optical lattices show pronounced Atomic Density Waves (ADWs). These ADWs are

pinned due to the confining potential that traps the atoms in the optical

lattice and can be considered a crystal of strongly bound trions. We show that

the crystalline phase is incompressible and robust against SU(3) symmetry

breaking interaction. We also show that it is generic in the presence of the

trap due to its incompressible characteristics. A simulation of the time

evolution of the fermionic gas after the trapping potential is switch off shows

that the formation of the trionic crystal is marked by a freezing of the

dynamics in the lattice.

\\ ( http://arxiv.org/abs/0807.1886 , 89kb)

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arXiv:0807.1777

Date: Fri, 11 Jul 2008 05:49:45 GMT (153kb)

Title: Mean-field dynamics of a non-hermitian Bose-Hubbard dimer

Authors: E. M. Graefe, H. J. Korsch and A. E. Niederle

Categories: quant-ph

Comments: 4 pages, 3 figures

\\

We investigate an N-particle Bose-Hubbard dimer with an additional effective

decay term in one of the sites. A mean-field approximation for this

non-hermitian many-particle system is derived, based on a coherent state

approximation. The properties of the resulting nonlinear, non-hermitian

two-level system are analyzed, in particular the bifurcation scenario showing

characteristic modifications of the self trapping transition. The mean-field

dynamics is found to be in reasonable agreement with the full many-particle

evolution.

\\ ( http://arxiv.org/abs/0807.1777 , 153kb)

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arXiv:0807.1901

Date: Fri, 11 Jul 2008 18:07:58 GMT (287kb)

Title: Matter--wave emission in optical lattices: Single particle and

collective effects

Authors: Ines de Vega, Diego Porras, J. Ignacio Cirac

Categories: quant-ph

Comments: 5 pages, 3 figures

\\

We introduce a simple set--up corresponding to the matter-wave analogue of

impurity atoms embedded in an infinite photonic crystal and interacting with

the radiation field. Atoms in a given internal level are trapped in an optical

lattice, and play the role of the impurities. Atoms in an untrapped level play

the role of the radiation field. The interaction is mediated by means of lasers

that couple those levels. By tuning the lasers parameters, it is possible to

drive the system through different regimes, and observe phenomena like matter

wave superradiance, non-Markovian atom emission, and the appearance of bound

atomic states.

\\ ( http://arxiv.org/abs/0807.1901 , 287kb)

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arXiv:0807.1910

Date: Fri, 11 Jul 2008 18:50:28 GMT (188kb)

Title: Influence of atomic collisions on spectrum of light scattered from an

f-deformed Bose-Einstein condensate

Authors: Z. Haghshenasfard, M. H. Naderi and M. Soltanolkotabi

Categories: quant-ph

Comments: 17 pages, 4figures

\\

In this paper, we investigate the spectrum of light scattered from a

Bose-Einstein condensate in the framework of f-deformed boson. We use an

f-deformed quantum model in which the Gardiners phonon operators for BEC are

deformed by an operator-valued function, f(n), of the particle-number operator

n. We consider the collisions between the atoms as a special kind of

f-deformation. The collision rate k is regarded as the deformation parameter

and the spectrum of light scattered from the deformed BEC is analyzed. In

particular, we find that with increasing the values of deformation parameters k

and eta=1/N (N, total number of condensate atoms) the scattering spectrum shows

deviation from the spectrum associated with nondeformed Bose-Einstein

condensate.

\\ ( http://arxiv.org/abs/0807.1910 , 188kb)

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arXiv:0807.1907

Date: Fri, 11 Jul 2008 18:34:34 GMT (466kb)

Title: The hyperfine energy levels of alkali metal dimers: ground-state polar

molecules in electric and magnetic fields

Authors: J. Aldegunde, Ben A. Rivington, Piotr S. \.Zuchowski and Jeremy M.

Hutson

Categories: physics.atom-ph physics.chem-ph

Comments: 8 pages, 6 figures

\\

We investigate the energy levels of heteronuclear alkali metal dimers in

levels correlating with the lowest rotational level of the ground electronic

state, which are important in efforts to produce ground-state ultracold

molecules. We use density-functional theory to calculate nuclear quadrupole and

magnetic coupling constants for RbK and RbCs and explore the hyperfine

structure in the presence of electric and magnetic fields. For nonrotating

states, the zero-field splittings are dominated by the electron-mediated part

of the nuclear spin-spin coupling. They are a few kHz for RbK isotopologs and a

few tens of kHz for RbCs isotopologs.

\\ ( http://arxiv.org/abs/0807.1907 , 466kb)

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arXiv:0807.2002

Date: Sat, 12 Jul 2008 23:13:34 GMT (162kb)

Title: Effective one-dimensional dynamics of elongated Bose-Einstein

condensates

Authors: A. Mu\~noz Mateo and V. Delgado (Univ. La Laguna)

Categories: cond-mat.other

Comments: 10 pages, 5 figures

\\

By using a variational approach in combination with the adiabatic

approximation we derive a new effective 1D equation of motion for the axial

dynamics of elongated condensates. For condensates with vorticity $|q|=0$ or 1,

this equation coincides with our previous proposal [Phys. Rev. A \textbf{77},

013617 (2008)]. We also rederive the nonpolynomial Schr\"{o}dinger equation

(NPSE) in terms of the adiabatic approximation. This provides a unified

treatment for obtaining the different effective equations and allows to

appreciate clearly the differences and similarities between the various

proposals. We also obtain an expression for the axial healing length of

cigar-shaped condensates and show that, in the local density approximation and

in units of the axial oscillator length, it coincides with the inverse of the

condensate axial half-length. From this result it immediately follows the

necessary condition for the validity of the local density approximation.

Finally, we obtain analytical formulas that give the frequency of the axial

breathing mode with an accuracy better than 1%. These formulas can be relevant

from an experimental point of view since they can be expressed in terms only of

the axial half-length and remain valid in the crossover between the

Thomas-Fermi and the quasi-1D mean-field regimes. We have corroborated the

validity of our results by numerically solving the full 3D Gross-Pitaevskii

equation.

\\ ( http://arxiv.org/abs/0807.2002 , 162kb)

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arXiv:0807.2081

Date: Mon, 14 Jul 2008 04:50:29 GMT (8kb)

Title: Wave Function and Pair Distribution Function of a Dilute Bose Gas

Authors: Bo-Bo Wei Chen-Ning Yang

Categories: cond-mat.stat-mech

Comments: 2 pages, 1 figure

\\

The wave function of a dilute hard sphere Bose gas at low temperatures is

discussed, emphasizing the formation of pairs. The pair distribution function

is calculated for two values of $\sqrt{\rho a^3}$.

\\ ( http://arxiv.org/abs/0807.2081 , 8kb)

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arXiv:0807.2154

Date: Mon, 14 Jul 2008 13:03:37 GMT (215kb)

Title: Exact results of two-component Fermi gas in a hard wall trap

Authors: Bo-Bo Wei, Jun-Peng Cao, Shi-Jian Gu and Hai-Qing Lin

Categories: cond-mat.stat-mech

Comments: 6 pages, 6 pages

\\

We investigate the ground state properties of a one-dimensional two-component

ultra-cold Fermi gas in an infinite potential well. Exact Bethe ansatz solution

is used to calculate the many-body wave function of the system. Then we

evaluate the single-particle reduced density matrix and two-particle density

density correlations of the system for different interaction strengths. We find

that the momentum density distributions of the strongly interacting

two-component Fermi gas is distinct from that of free spinless Fermi gas

although their position density distributions are similar. This interacting

system may be experimentally accessible using ultra-cold atoms.

\\ ( http://arxiv.org/abs/0807.2154 , 215kb)

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arXiv:0807.2194

Date: Mon, 14 Jul 2008 16:31:07 GMT (32kb)

Title: Internal structure of a quantum soliton and classical excitations due to

trap opening

Authors: Yvan Castin (LKB - Lhomond)

Categories: cond-mat.other

Comments: 12 pages

\\

We analytically solve two problems that may be useful in the context of the

recent observation of matter wave bright solitons in a one-dimensional

attractive atomic Bose gas. The first problem is strictly beyond mean field:

From the Bethe ansatz solution we extract the internal correlation function

of the particle positions in the quantum soliton, that is for a fixed center of

mass position. The second problem is solved in the limit of a large number of

particles, where the mean field theory is asymptotically correct: It deals with

the number of excitations created by the opening of the trap, starting from a

pure soliton in a weakly curved harmonic potential.

\\ ( http://arxiv.org/abs/0807.2194 , 32kb)

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arXiv:0807.2418

Date: Tue, 15 Jul 2008 17:39:18 GMT (223kb)

Title: Damped bounces of an isolated perfect quantum gas

Authors: S. Camalet

Categories: cond-mat.mes-hall

\\

The issue of the thermalization of an isolated quantum system is addressed by

considering a confined perfect gas. As we are interested in the behavior of

truly isolated systems, we assume the gas is in a pure state of macroscopically

well-defined energy. We show that, for single-particle distributions of a

general many-body system, such a state is strictly equivalent to the

microcanonical mixed state at the same energy. We study the case of a perfect

gas confined by gravity and initially trapped above a certain height. For this

system, we are able to determine the time-dependent density profile in the

limit of a large particle number. The expression obtained depends on the

initial gas state only via a few thermodynamic parameters. Though we consider

non-interacting particles, the gas density relaxes into an asymptotic profile,

but which is not the thermal equilibrium one determined by the gas energy and

particle number. Moreover, we show that this asymptotic density is not modified

by an energy-conserving environment. For a Bose gas below the condensation

temperature, this relaxation behavior is found for the thermal cloud whereas

the condensate evolves in a very different way.

\\ ( http://arxiv.org/abs/0807.2418 , 223kb)

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arXiv:0807.2426

Date: Tue, 15 Jul 2008 18:43:54 GMT (321kb)

Title: Finite temperature coherence of the ideal Bose gas in an optical lattice

Authors: G.A. Muradyan and J.R. Anglin

Categories: cond-mat.stat-mech

\\

In current experiments with cold quantum gases in periodic potentials,

interference fringe contrast is typically the easiest signal in which to look

for effects of non-trivial many-body dynamics. In order better to calibrate

such measurements, we analyse the background effect of thermal decoherence as

it occurs in the absence of dynamical interparticle interactions. We study the

effect of optical lattice potentials, as experimentally applied, on the

condensed fraction of a non-interacting Bose gas in local thermal equilibrium

at finite temperatures. We show that the experimentally observed decrease of

the condensate fraction in the presence of the lattice can be attributed, up to

a threshold lattice height, purely to ideal gas thermodynamics; conversely we

confirm that sharper decreases in first-order coherence observed in stronger

lattices are indeed attributable to many-body physics. Our results also suggest

that the fringe visibility 'kinks' observed in F.Gerbier et al., Phys. Rev.

Lett. 95, 050404 (2005) may be explained in terms of the competition between

increasing lattice strength and increasing mean gas density, as the gaussian

profile of the red-detuned lattice lasers also increases the effective strength

of the harmonic trap.

\\ ( http://arxiv.org/abs/0807.2426 , 321kb)

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arXiv:0807.2436

Date: Tue, 15 Jul 2008 19:48:26 GMT (132kb)

Title: Dislocation-Mediated Melting in Superfluid Vortex Lattices

Authors: S. Andrew Gifford and Gordon Baym

Categories: cond-mat.stat-mech cond-mat.mes-hall

Comments: 9 pages, 2 figures

\\

We describe thermal melting of the two-dimensional vortex lattice in a

rotating superfluid by generalizing the Halperin and Nelson theory of

dislocation-mediated melting. and derive a melting temperature proportional to

the renormalized shear modulus of the vortex lattice. The rigid-body rotation

of the superfluid attenuates the effects of lattice compression on the energy

of dislocations and hence the melting temperature, while not affecting the

shearing. Finally, we discuss dislocations and thermal melting in inhomogeneous

rapidly rotating Bose-Einstein condensates; we delineate a phase diagram in the

temperature -- rotation rate plane, and infer that the thermal melting

temperature should lie below the Bose-Einstein transition temperature.

\\ ( http://arxiv.org/abs/0807.2436 , 132kb)

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arXiv:0807.2347

Date: Tue, 15 Jul 2008 11:37:58 GMT (633kb,D)

Title: Cavity Opto-Mechanics with a Bose-Einstein Condensate

Authors: Ferdinand Brennecke, Stephan Ritter, Tobias Donner, Tilman Esslinger

Categories: quant-ph

Comments: F.B. and S.R. contributed equally to this work. 6 pages, 4 figures

\\

Cavity opto-mechanics studies the coupling between a mechanical oscillator

and a cavity field, with the aim to shed light on the border between classical

and quantum physics. Here we report on a cavity opto-mechanical system in which

a collective density excitation of a Bose-Einstein condensate is shown to serve

as the mechanical oscillator coupled to the cavity field. We observe that a few

photons inside the ultrahigh-finesse cavity trigger a strongly driven

back-action dynamics, in quantitative agreement with a cavity opto-mechanical

model. With this experiment we approach the strong coupling regime of cavity

opto-mechanics, where a single excitation of the mechanical oscillator

significantly influences the cavity field. The work opens up new directions to

investigate mechanical oscillators in the quantum regime and quantum gases with

non-local coupling.

\\ ( http://arxiv.org/abs/0807.2347 , 633kb)

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arXiv:0807.2602

Date: Wed, 16 Jul 2008 16:16:29 GMT (121kb)

Title: Bragg spectroscopy of a strongly interacting Bose-Einstein condensate

Authors: J. J. Kinnunen and M. J. Holland

Categories: cond-mat.other cond-mat.stat-mech

Comments: 11 pages, 4 figures

\\

We study Bragg spectroscopy of a strongly interacting Bose-Einstein

condensate using time-dependent Hartree-Fock-Bogoliubov theory. We include

approximatively the effect of the momentum dependent scattering amplitude which

is shown to be the dominant factor in determining the spectrum for large

momentum Bragg scattering. The condensation of the Bragg scattered atoms is

shown to significantly alter the observed excitation spectrum by creating a

novel pairing channel of mobile pairs.

\\ ( http://arxiv.org/abs/0807.2602 , 121kb)

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arXiv:0807.2444

Date: Tue, 15 Jul 2008 21:10:54 GMT (932kb)

Title: Measuring measurement

Authors: J.S. Lundeen, A. Feito, H. Coldenstrodt-Ronge, K.L. Pregnell, Ch.

Silberhorn, T.C. Ralph, J. Eisert, M.B. Plenio, I.A. Walmsley

Categories: quant-ph

Comments: 6 pages, 4 figures

\\

Measurement connects the world of quantum phenomena to the world of classical

events. It plays both a passive role, observing quantum systems, and an active

one, preparing quantum states and controlling them. Surprisingly - in the light

of the central status of measurement in quantum mechanics - there is no general

recipe for designing a detector that measures a given observable. Compounding

this, the characterization of existing detectors is typically based on partial

calibrations or elaborate models. Thus, experimental specification (i.e.

tomography) of a detector is of fundamental and practical importance. Here, we

present the realization of quantum detector tomography: we identify the optimal

positive-operator-valued measure describing the detector, with no ancillary

assumptions. This result completes the triad, state, process, and detector

tomography, required to fully specify an experiment. We characterize an

avalanche photodiode and a photon number resolving detector capable of

detecting up to eight photons. This creates a new set of tools for accurately

detecting and preparing non-classical light.

\\ ( http://arxiv.org/abs/0807.2444 , 932kb)

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arXiv:0807.2502

Date: Wed, 16 Jul 2008 07:01:12 GMT (357kb)

Title: Simulations and Experiments on Polarisation Squeezing in Optical Fibre

Authors: Joel F. Corney, Joel Heersink, Ruifang Dong, Vincent Josse, Peter D.

Drummond, Gerd Leuchs and Ulrik L. Andersen

Categories: quant-ph

Comments: 19 pages, lots of figures

\\

We investigate polarisation squeezing of ultrashort pulses in optical fibre,

over a wide range of input energies and fibre lengths. Comparisons are made

between experimental data and quantum dynamical simulations, to find good

quantitative agreement. The numerical calculations, performed using both

truncated Wigner and exact $+P$ phase-space methods, include nonlinear and

stochastic Raman effects, through coupling to phonons variables. The

simulations reveal that excess phase noise, such as from depolarising GAWBS,

affects squeezing at low input energies, while Raman effects cause a marked

deterioration of squeezing at higher energies and longer fibre lengths. The

optimum fibre length for maximum squeezing is also calculated.

\\ ( http://arxiv.org/abs/0807.2502 , 357kb)

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arXiv:0807.2584

Date: Wed, 16 Jul 2008 14:55:39 GMT (125kb)

Title: Refractive Index Enhancement with Vanishing Absorption in an Atomic

Vapor

Authors: N. A. Proite, B. E. Unks, J. T. Green, and D. D. Yavuz

Categories: quant-ph physics.optics

Comments: 11 pages, 4 figures

\\

We report a proof-of-principle experiment where the refractive index of an

atomic vapor is enhanced while maintaining vanishing absorption of the beam.

The key idea is to drive alkali atoms in a vapor with appropriate control

lasers and induce a gain resonance and an absorption resonance for a probe beam

in a two-photon Raman configuration. The strength and the position of these two

resonances can be manipulated by changing the parameters of the control lasers.

By using the interference between these two resonances, we obtain an enhanced

refractive index without an increase in the absorption.

\\ ( http://arxiv.org/abs/0807.2584 , 125kb)

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arXiv:0807.2587

Date: Wed, 16 Jul 2008 15:57:30 GMT (2342kb,D)

Title: Power-law behavior in the quantum-resonant evolution of the delta-kicked

accelerator

Authors: P. L. Halkyard, M. Saunders, S. A. Gardiner, K. J. Challis

Categories: physics.atom-ph

Comments: 17 pages, 5 figures

\\

We consider the atom-optical delta-kicked accelerator when the initial

momentum distribution is symmetric. We demonstrate the existence of

quantum-resonant dynamics, and derive analytic expressions for the system

evolution. In particular, we consider the dynamical evolution of the momentum

moments and find that all even-ordered momentum moments exhibit a power law

growth. In the ultracold (zero-temperature) limit the exponent is determined by

the order of the moment, whereas for a broad, thermal initial momentum

distribution the exponent is reduced by one. To demonstrate the power law

behavior explicitly we consider the evolution of the second- and fourth-order

momentum moment, and cumulant, for both an initially uniform momentum

distribution, and an initially Gaussian momentum distribution.

\\ ( http://arxiv.org/abs/0807.2587 , 2342kb)

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arXiv:0807.2784

Date: Thu, 17 Jul 2008 13:51:09 GMT (70kb)

Title: The Bifurcation Theory of Magnetic Monopoles in a Charged Two-Condensate

Bose-Einstein System

Authors: Shu-Fan Mo, Ji-Rong Ren, and Tao Zhu

Categories: cond-mat.supr-con

Comments: 21 pages, 5 figures

Journal-ref: J. Phys. A: Math. Theor. 41, 315214 (2008)

DOI: 10.1088/1751-8113/41/31/315214

\\

Magnetic monopoles, that are particle-like field configurations with which

one can associate a topological charge, widely exist in various three

dimensional condensate systems. In this paper, by making use of \emph{Duan}'s

topological current theory, we obtain the charge density of magnetic monopoles

and their bifurcation theory in a charged two condensate Bose-Einstein system.

The evolution of magnetic monopoles is studied from the topological properties

of a three-dimensional vector field. The magnetic monopoles are found

generating or annihilating at the limit points and encountering, splitting, or

merging at the bifurcation points.

\\ ( http://arxiv.org/abs/0807.2784 , 70kb)

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arXiv:0807.2840

Date: Thu, 17 Jul 2008 17:28:35 GMT (2171kb,D)

Title: Paired fermionic superfluids with s- and p-wave interactions

Authors: Jesper Levinsen

Categories: cond-mat.supr-con cond-mat.stat-mech

Comments: PhD thesis

\\

This thesis presents theoretical work in s- and p-wave resonantly paired

Fermi gases at zero temperature. In the BEC regime of the wide-resonance s-wave

BCS-BEC crossover, the chemical potential, speed of sound, condensate

depletion, and ground state energy are computed. The quantities are calculated

in a low density approximation. The bosonic scattering length is computed

diagrammatically to be approximately 0.60a with a the fermionic scattering

length, confirming a well-known result. The perturbative approach breaks down

in the intermediate BCS-BEC crossover regime which is not investigated. Quantum

corrections are computed in the low density expansion, and the mass-imbalanced

two-species Fermi gas is investigated. For identical fermions, it is discussed

how p-wave Feshbach resonances naturally fall into two classes of "weak" and

"strong", depending on the short-distance physics. It is shown how bound

fermionic trimers appear in the strongly-resonant superfluid. The appearance of

the trimer under the strengthening of the resonance is investigated, and the

lifetime of p-wave diatomic molecules due to collisional relaxation into

trimers is estimated.

\\ ( http://arxiv.org/abs/0807.2840 , 2171kb)

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arXiv:0807.2845

Date: Thu, 17 Jul 2008 18:02:59 GMT (202kb)

Title: Direct observation of a localization transition in quasi-periodic

photonic lattices

Authors: Y. Lahini, R. Pugatch, F. Pozzi, M. Sorel, R. Morandotti, N. Davidson

and Y. Silberberg

Categories: cond-mat.dis-nn

Comments: Comments welcome

\\

The localization of waves in non-periodic media is a universal phenomenon,

occurring in a variety of different quantum and classical systems, including

condensed-matter, Bose-Einstein condensates in optical lattices, quantum

chaotic systems, sound waves and light. A localization phase transition is

expected to occur in three dimensional disordered systems as the strength of

disorder crosses a critical value. Recently, a crossover from an extended to a

localized phase has been observed in low-dimensional photonic lattices and

Bose-Einstein condensates. Other experiments studied the critical behaviour

near the transition in three dimensions via transmission measurements. However,

no direct observation of a localization transition for light has been reported.

In 1979 Aubry and Andre predicted that for a certain class of quasi-periodic

potentials, a localization phase transition can occur already in one-dimension.

This strongly correlated potential is markedly different from the disordered

case were the potential is uncorrelated. Here we report an experiment that

realizes the Aubry-Andre model in quasi-periodic photonic lattices. We observe

the signature of a localization phase transition by directly measuring the

expansion rates of initially narrow wave packets propagating in the lattice.

Below the transition point, all the modes of the system are extended and

therefore an initially narrow wave-packet eventually spreads across the entire

lattice. Above the critical point, all modes are localized and expansion is

suppressed. In addition, we study the effect of weak nonlinear interactions on

light propagation below and above the transition.

\\ ( http://arxiv.org/abs/0807.2845 , 202kb)

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The replacements:

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arXiv:0803.2922

replaced with revised version Sat, 12 Jul 2008 06:37:25 GMT (698kb)

Title: Theory of correlations between ultra-cold bosons released from an

optical lattice

Authors: E. Toth, A. M. Rey and P. B. Blakie

Categories: cond-mat.other

Comments: 18 pages, 11 figures. To appear in Phys. Rev. A. (few minor changes

made and typos fixed)

\\ ( http://arxiv.org/abs/0803.2922 , 698kb)

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arXiv:0807.0446

replaced with revised version Thu, 17 Jul 2008 16:03:35 GMT (1893kb)

Title: Strongly interacting bosons in a disordered optical lattice

Authors: M. White, M. Pasienski, D. McKay, S. Zhou, D. Ceperley, B. DeMarco

Categories: physics.atom-ph cond-mat.other

Comments: 15 pages, 4 figures updated to correct errors in referencing previous

work

\\ ( http://arxiv.org/abs/0807.0446 , 1893kb)

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arXiv:0710.3852

replaced with revised version Wed, 16 Jul 2008 00:24:11 GMT (200kb)

Title: Quantum Antiferromagnetism of Fermions in Optical Lattices with

Half-filled p-band

Authors: Kai Wu and Hui Zhai

Categories: cond-mat.str-el cond-mat.supr-con

Journal-ref: Phys. Rev. B 77, 174431 (2008)

\\ ( http://arxiv.org/abs/0710.3852 , 200kb)

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arXiv:0712.1445

replaced with revised version Wed, 16 Jul 2008 06:05:56 GMT (1065kb)

Title: Critical Temperature and Condensate Fraction of a Fermion Pair

Condensate

Authors: Yasuhisa Inada, Munekazu Horikoshi, Shuta Nakajima, Makoto

Kuwata-Gonokami, Masahito Ueda and Takashi Mukaiyama

Categories: cond-mat.other

\\ ( http://arxiv.org/abs/0712.1445 , 1065kb)

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arXiv:0804.3011

replaced with revised version Wed, 16 Jul 2008 01:34:50 GMT (92kb)

Title: Cross-Molecular Coupling in Combined Photoassociation and Feshbach

Resonances

Authors: Matt Mackie, Matthew Fenty, Danielle Savage, and Jake Kesselman

Categories: physics.atom-ph physics.chem-ph

Comments: 4 pages, 2 figs, 22+ refs; v2 improved abstract, refined discussion

of exptl motivation, improved word choice in discussion of future work; to

appear in Phys. Rev. Lett

\\ ( http://arxiv.org/abs/0804.3011 , 92kb)

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arXiv:0712.4191

replaced with revised version Thu, 17 Jul 2008 01:28:02 GMT (118kb)

Title: Many-Body Effects on Nonadiabatic Feshbach Conversion in Bosonic Systems

Authors: Jie Liu, Bin Liu, and Libin Fu

Categories: cond-mat.mes-hall

Comments: 7pages 5figures

Journal-ref: Phys. Rev. A 78, 013618 (2008)

\\ ( http://arxiv.org/abs/0712.4191 , 118kb)

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Till next time,

Matt.

-- ========================================================================= Dr M. J. Davis, Senior Lecturer in Physics School of Physical Sciences, email: mdavis_at_physics.uq.edu.au University of Queensland, ph : +61 7 334 69824 Brisbane, QLD 4072, fax : +61 7 336 51242 Australia. http://www.physics.uq.edu.au/people/mdavis/ ========================================================================= Matt's arXiv selection: weekly summary of cold-atom papers from arXiv.org http://www.physics.uq.edu.au/people/mdavis/matts_arXiv/ ========================================================================= Legal stuff: Unless stated otherwise, this e-mail represents only the views of the sender and not the views of the University of Queensland =========================================================================Received on Thu Aug 07 2008 - 11:07:52 EST

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