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

Date: Fri, 12 Sep 2008 07:33:25 +1000

Date: Fri, 12 Sep 2008 07:33:25 +1000

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

Hi all,

This week there were 21 new preprints and 17 replacements.

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arXiv:0808.0026

Date: Thu, 31 Jul 2008 21:29:07 GMT (1224kb,D)

Title: Determination of the Superfluid Gap in Atomic Fermi Gases by

Quasiparticle Spectroscopy

Authors: Andre Schirotzek, Yong-il Shin, Christian H. Schunck and Wolfgang

Ketterle

Categories: cond-mat.other

Comments: 5 pages, 4 figures (appendix: 3 pages, 5 figures)

\\

We present majority and minority radiofrequency (RF) spectra of strongly

interacting imbalanced Fermi gases of Li-6. We observed a smooth evolution in

the nature of pairing correlations from pairing in the superfluid region to

polaron binding in the highly polarized normal region. The imbalance induces

quasiparticles in the superfluid region even at very low temperature. This

leads to a local bimodal spectral response, which allows us to determine the

superfluid gap \Delta and the Hartree energy U.

\\ ( http://arxiv.org/abs/0808.0026 , 1224kb)

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arXiv:0808.0054

Date: Fri, 1 Aug 2008 04:21:03 GMT (172kb,D)

Title: Trapping of Ultracold Atoms in a Hollow-core Photonic Crystal Fiber

Authors: Caleb A. Christensen, Sebastian Will, Michele Saba, Gyu-Boong Jo,

Wolfgang Ketterle, David Pritchard

Categories: cond-mat.other

Comments: 4 pages, 3 figures, submitted to Phys. Rev. A

\\

Ultracold sodium atoms have been trapped inside a hollow-core optical fiber.

The atoms are transferred from a free space optical dipole trap into a trap

formed by a red-detuned gaussian light mode confined to the core of the fiber.

We show that at least 5% of the atoms held initially in the free space trap can

be loaded into the core of the fiber and retrieved outside.

\\ ( http://arxiv.org/abs/0808.0054 , 172kb)

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arXiv:0808.0120

Date: Fri, 1 Aug 2008 13:38:37 GMT (398kb,D)

Title: Scattering and binding of different atomic species in a one-dimensional

optical lattice

Authors: R. T. Piil, N. Nygaard, and K. Molmer

Categories: cond-mat.other

Comments: 5 pages, 4 figures

\\

The theory of scattering of atom pairs in a periodic potential is presented

for the case of different atoms. When the scattering dynamics is restricted to

the lowest Bloch band of the periodic potential, a separation in relative and

average discrete coordinates applies and makes the problem analytically

tractable, and we present a number of new results and features compared to the

case of identical atoms.

\\ ( http://arxiv.org/abs/0808.0120 , 398kb)

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arXiv:0808.0150

Date: Fri, 1 Aug 2008 16:51:06 GMT (206kb)

Title: Particle-hole fluctuations in the BCS-BEC Crossover

Authors: S. Floerchinger, M. Scherer, S. Diehl and C. Wetterich

Categories: cond-mat.supr-con

Comments: 11 pages, 6 figure

\\

The effect of particle-hole fluctuations for the BCS-BEC crossover is

investigated by use of functional renormalization. We compute the critical

temperature for the whole range in the scattering length $a$. On the BCS side

for small negative $a$ we recover the Gorkov approximation, while on the BEC

side of small positive $a$ the particle-hole fluctuations play no important

role and we find a system of interacting bosons. In the unitarity limit of

infinite scattering length our quantitative estimate yields $T_c/T_F=0.264$. We

also investigate the crossover from broad to narrow Feshbach resonances -- for

the later we obtain $T_c/T_F=0.204$ for $a^{-1}=0$. A key ingredient for our

treatment is the computation of the momentum dependent four-fermion vertex and

its bosonization in terms of an effective bound state exchange.

\\ ( http://arxiv.org/abs/0808.0150 , 206kb)

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arXiv:0807.1111 (*cross-listing*)

Date: Tue, 8 Jul 2008 19:52:34 GMT (40kb)

Date (revised v2): Thu, 31 Jul 2008 23:55:58 GMT (47kb)

Title: Hot Spacetimes for Cold Atoms

Authors: Allan Adams, Koushik Balasubramanian, and John McGreevy

Categories: hep-th cond-mat.other

Comments: latex, 40+1 pages; v2: added subsection 4.6, solidified calculation

of stress tensor, added refs

Report-no: MIT-CTP 3962

\\

Building on our earlier work and that of Son, we construct string theory

duals of non-relativistic critical phenomena at finite temperature and density.

Concretely, we find black hole solutions of type IIB supergravity whose

asymptotic geometries realize the Schroedinger group as isometries. We then

identify the non-relativistic conformal field theories to which they are dual.

We analyze the thermodynamics of these black holes, which turn out to describe

the system at finite temperature and finite density. The strong-coupling result

for the shear viscosity of the dual non-relativistic field theory saturates the

KSS bound.

\\ ( http://arxiv.org/abs/0807.1111 , 47kb)

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arXiv:0808.0241

Date: Sat, 2 Aug 2008 08:18:55 GMT (239kb)

Title: Ruppeiner Geometry of Anyon Gas

Authors: Behrouz Mirza, Hosein Mohammadzadeh

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

Comments: 12 pages

\\

We derive the thermodynamic curvature of a two dimensional ideal anyon gas of

particles obeying fractional statistics. The statistical interactions of anyon

gas can be attractive or repulsive. For attractive statistical interactions,

thermodynamic curvature is positive and for repulsive statistical interactions,

it is negative, which indicates a more stable anyon gas. There is a special

case between the two where the thermodynamic curvature is zero. Small

deviations from the classical limit will also be explored.

\\ ( http://arxiv.org/abs/0808.0241 , 239kb)

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arXiv:0808.0259

Date: Sat, 2 Aug 2008 13:51:42 GMT (25kb)

Title: Disorder-Induced Phase Control in Superfluid Fermi-Bose Mixtures

Authors: Armand Niederberger, Jan Wehr, Maciej Lewenstein, Krzysztof Sacha

Categories: cond-mat.dis-nn

Comments: 4 pages, 2 figures

\\

We consider a mixture of a superfluid Fermi gas of ultracold atoms and a

Bose-Einstein condensate of molecules possessing a continuous U(1) (relative

phase) symmetry. We study the effects that a spatially random

photo-associative-dissociative symmetry breaking coupling of the systems. Such

coupling allows to control the relative phase between a superfluid order

parameter of the Fermi system and the condensate wavefunction of molecules for

temperatures below the BCS critical temperature. The presented mechanism of

phase control belongs to the general class of disorder-induced order phenomena

that rely on breaking of continuous symmetry.

\\ ( http://arxiv.org/abs/0808.0259 , 25kb)

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arXiv:0808.0409

Date: Mon, 4 Aug 2008 09:57:42 GMT (237kb)

Title: DC Josephson Effect with Fermi gases in the Bose-Einstein regime

Authors: F. Ancilotto, L. Salasnich, and F. Toigo

Categories: cond-mat.other cond-mat.supr-con

Comments: 5 pages, 5 figures

\\

We show that the DC Josephson effect with ultracold fermionic gases in the

BCS-BEC crossover can be described by a nonlinear Schrodinger equation (NLSE).

By comparing our results with Bogoliubov-de Gennes calculations [Phys. Rev.

Lett. 99, 040401 (2007)] we find that the superfluid NLSE is reliable in the

BEC regime up to the unitarity limit of infinite scattering length. We also

predict that the Josephson current displays relevant beyond mean-field effects.

\\ ( http://arxiv.org/abs/0808.0409 , 237kb)

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arXiv:0808.0439

Date: Mon, 4 Aug 2008 13:23:20 GMT (193kb)

Title: Collective Excitations of Rotating Dipolar Fermi Gases in the Fractional

Quantum Hall Regime

Authors: Szu-Cheng Cheng

Categories: cond-mat.mes-hall

Comments: 13 pages, 3 figures

\\

We apply the magneto-roton theory of the fractional quantum Hall effect to

study the collective excitation spectrum of rotating dipolar Fermi gases. The

predicted spectrum has a finite energy gap in the long wavelength limit and a

roton minimum at finite wave vector. The roton minimum being deepened from

filling factor 1/3 to filling factor 1/5 is a signature of incipient

crystallization near filling factor 1/7. We demonstrate that, under the roton

minimum, there are no low-lying single-particle excitations in the

fractional-quantum-Hall states. The fractional-quantum-Hall fluid of rotating

dipolar fermions behaves as an incompressible superfluid at low temperature.

\\ ( http://arxiv.org/abs/0808.0439 , 193kb)

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arXiv:0808.0479

Date: Mon, 4 Aug 2008 18:20:47 GMT (7kb)

Title: Dynamics of a one-dimensional spinor Bose liquid: a phenomenological

approach

Authors: A. Kamenev and L.I. Glazman

Categories: cond-mat.mes-hall cond-mat.other

Comments: 3 pages

\\

The ground state of a spinor Bose liquid is ferromagnetic, and the magnon

excitation has a quadratic spectrum omega(q) at small wavevectors q. The

dynamic responses associated with the magnon mode in a one-dimensional liquid

exhibit power-law singularities at frequency omega is approaching omega(q) at

fixed q. We express, without using any specific model of the inter-particle

interactions, the corresponding exponents in terms of a few independently

measurable quantities which characterize the low-energy properties of the Bose

liquid.

\\ ( http://arxiv.org/abs/0808.0479 , 7kb)

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arXiv:0808.0499

Date: Mon, 4 Aug 2008 20:13:57 GMT (102kb)

Title: Interferometric probe of paired states

Authors: V. Gritsev, E. Demler, A. Polkovnikov

Categories: cond-mat.other cond-mat.supr-con

Comments: 17 pages, 5 figures

\\

We propose a new method for detecting paired states in either bosonic or

fermionic systems using interference experiments with independent or weakly

coupled low dimensional systems. We demonstrate that our method can be used to

detect both the FFLO and the d-wave paired states of fermions, as well as

quasicondensates of singlet pairs for polar F=1 atoms in two dimensional

systems. We discuss how this method can be used to perform phase-sensitive

determination of the symmetry of the pairing amplitude.

\\ ( http://arxiv.org/abs/0808.0499 , 102kb)

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arXiv:0808.0612

Date: Tue, 5 Aug 2008 10:48:49 GMT (733kb)

Title: Matter sound waves in two-component Bose-Einstein condensates

Authors: B. B. Baizakov, A. M. Kamchatnov and M. Salerno

Categories: cond-mat.other

Comments: 16 pages, 9 figures

\\

The creation and propagation of sound waves in two-component Bose-Einstein

condensates (BEC) are investigated and a new method of wave generation in

binary BEC mixtures is proposed. The method is based on a fast change of the

inter-species interaction constant and is illustrated for two experimental

settings: a drop-like condensate immersed into a second large repulsive

condensate, and a binary mixture of two homogeneous repulsive BEC's. A

mathematical model based on the linearized coupled Gross-Pitaevskii equations

is developed and explicit formulae for the space and time dependence of sound

waves are provided. Comparison of the analytical and numerical results shows

excellent agreement, confirming the validity of the proposed approach.

\\ ( http://arxiv.org/abs/0808.0612 , 733kb)

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arXiv:0808.0636

Date: Tue, 5 Aug 2008 12:31:18 GMT (407kb)

Title: A method to create disordered vortex arrays in atomic Bose-Einstein

condensates

Authors: Eniko J. M. Madarassy

Categories: cond-mat.other

Comments: 11 pages, 7 figures

\\

We suggest a method to create turbulence in a trapped atomic Bose-Einstein

condensate (BEC). By replacing in the upper half part of our box the wave

function, $\Psi$, with its complex conjugate, $\Psi^{*}$, new negative vortices

are introduced into the system. The simulations are performed by solving the

two-dimensional Gross-Pitaevskii equation (2D GPE). We study the successive

dynamics of the wave function by monitoring the evolution of density and phase

profile.

\\ ( http://arxiv.org/abs/0808.0636 , 407kb)

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arXiv:0808.0659

Date: Tue, 5 Aug 2008 17:53:39 GMT (43kb)

Title: Enhancement of On-Site Interactions of Tunnelling Ultracold Atoms in

Optical Potentials using Radio-Frequency Dressing

Authors: Martin Shotter, Dimitrios Trypogeorgos and Christopher Foot

Categories: cond-mat.other

Comments: 5 pages, 2 figures, 6 subfigures

\\

We show how it is possible to more than double the on-site interaction energy

of neutral atoms in optical potentials by the technique of radio-frequency (rf)

dressing, while maintaining interwell dynamics. We calculate Bose-Hubbard

parameters for rf dressed optical lattices and arrays of rf dressed dipole

traps. We show that decreasing the distance between wells, by the interpolation

of wells confining different m_F states, increases the interaction energy more

than decreasing the height of the classically forbidden region between existing

wells. The schemes we propose have negligible Landau-Zener losses caused by

atomic motion; this was a dominant effect in the first experimental

demonstration of the modification of an optical potential by radio-frequency

dressing.

\\ ( http://arxiv.org/abs/0808.0659 , 43kb)

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arXiv:0808.0681

Date: Tue, 5 Aug 2008 16:33:45 GMT (9kb)

Title: Spectral functions of strongly interacting isospin-1/2 bosons in one

dimension

Authors: K. A. Matveev and A. Furusaki

Categories: cond-mat.mes-hall cond-mat.other

\\

We study a system of one-dimensional (iso)spin-1/2 bosons in the regime of

strong repulsive interactions. We argue that the low-energy spectrum of the

system consists of acoustic density waves and the spin excitations described by

an effective ferromagnetic spin chain with a small exchange constant J. We use

this description to compute the dynamic spin structure factor and the spectral

functions of the system.

\\ ( http://arxiv.org/abs/0808.0681 , 9kb)

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arXiv:0808.0594

Date: Tue, 5 Aug 2008 15:00:45 GMT (231kb)

Title: Tracking quasi-classical chaos in ultracold boson gases

Authors: Maxence Lepers (PhLAM, CERLA), V\'eronique Zehnl\'e (PhLAM, CERLA),

Jean Claude Garreau (PhLAM, CERLA)

Categories: quant-ph

Comments: 4 pages, revtex4, submitted to PRL

\\

We study the dynamics of a ultra-cold boson gas in a lattice submitted to a

constant force. We track the route of the system towards chaos created by the

many-body-induced nonlinearity and show that relevant information can be

extracted from an experimentally accessible quantity, the gas mean position.

The threshold nonlinearity for the appearance of chaotic behavior is deduced

from KAM arguments and agrees with the value obtained by calculating the

associated Lyapunov exponent.

\\ ( http://arxiv.org/abs/0808.0594 , 231kb)

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arXiv:0808.0827

Date: Wed, 6 Aug 2008 12:58:11 GMT (125kb)

Title: A direct measurement of the Bose-Einstein Condensation universality

class in NiCl$_2$-4SC(NH$_2$)$_2$ at ultra-low temperatures

Authors: L. Yin, J.S. Xia, V.S. Zapf, N.S. Sullivan, A. Paduan-Filho

Categories: cond-mat.str-el cond-mat.mtrl-sci

Comments: 4 pages, 4 figures

\\

In this work, we demonstrate field-induced Bose-Einstein condensation (BEC)

in the organic compound NiCl$_2$-4SC(NH$_2$)$_2$ using AC susceptibility

measurements down to 1 mK. The Ni $\textsl{S}$=1 spins exhibit 3D $\mathit{XY}$

antiferromagnetism between a lower critical field $H_{c1} \sim$ 2 T and a upper

critical field $H_{c2} \sim$ 12 T. The results show a power-law temperature

dependence of the phase transition line $H_{c1} (T) -H_{c1} (0) = aT^{\alpha}$

with $\alpha =$ 1.47$\pm$0.10 and $H_{c1} (0) = 2.053$ T, consistent with the

3D Bose-Einstein Condensation universality class. An abnormal change was found

in the phase boundary near $H_{c2}$ at approximately 150 mK.

\\ ( http://arxiv.org/abs/0808.0827 , 125kb)

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arXiv:0808.0907

Date: Wed, 6 Aug 2008 19:38:40 GMT (71kb)

Title: Berezinskii-Kosterlitz-Thouless transition in trapped

quasi-two-dimensional Fermi gas near a Feshbach resonance

Authors: Wei Zhang, G.-D. Lin, and L.-M. Duan

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

Comments: 6 pages, 4 figures

\\

We study the superfluid transition in a quasi-two-dimensional Fermi gas with

a magnetic field tuning through a Feshbach resonance. Using an effective

two-dimensional Hamiltonian with renormalized interaction between atoms and

dressed molecules, we investigate the Berezinskii-Kosterlitz-Thouless

transition temperature by studying the phase fluctuation effect. We also take

into account the trapping potential in the radial plane, and discuss the number

and superfluid density distributions. These results can be compared to

experimental outcomes for gases prepared in one-dimensional optical lattices.

\\ ( http://arxiv.org/abs/0808.0907 , 71kb)

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arXiv:0808.0594

Date: Tue, 5 Aug 2008 15:00:45 GMT (231kb)

Title: Tracking quasi-classical chaos in ultracold boson gases

Authors: Maxence Lepers (PhLAM, CERLA), V\'eronique Zehnl\'e (PhLAM, CERLA),

Jean Claude Garreau (PhLAM, CERLA)

Categories: quant-ph cond-mat.other nlin.CD

Comments: 4 pages, revtex4, submitted to PRL

\\

We study the dynamics of a ultra-cold boson gas in a lattice submitted to a

constant force. We track the route of the system towards chaos created by the

many-body-induced nonlinearity and show that relevant information can be

extracted from an experimentally accessible quantity, the gas mean position.

The threshold nonlinearity for the appearance of chaotic behavior is deduced

from KAM arguments and agrees with the value obtained by calculating the

associated Lyapunov exponent.

\\ ( http://arxiv.org/abs/0808.0594 , 231kb)

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arXiv:0808.0862

Date: Wed, 6 Aug 2008 16:02:04 GMT (608kb)

Title: Four-Wave Mixing in Ultracold Atoms using Intermediate Rydberg States

Authors: E. Brekke, J. O. Day, and T. G. Walker

Categories: physics.atom-ph

Comments: 4 pages, 6 figures

\\

Ultracold Rb atoms were used to demonstrate non-degenerate four-wave mixing

through a Rydberg state. Continuous 5S-5P-nD two-photon excitation to the

Rydberg state was combined with an nD-6P tuned laser in a phase matched

geometry. The angular dependence, spatial profile, and dependence on detuning

were investigated, showing good agreement with theory. Under optimum conditions

50 percent of the radiation was emitted into the phase-matched direction.

\\ ( http://arxiv.org/abs/0808.0862 , 608kb)

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arXiv:0808.1088

Date: Thu, 7 Aug 2008 19:12:40 GMT (751kb)

Title: Nonlinear resonances in \delta-kicked Bose-Einstein Condensates

Authors: A. Rancon, T. S. Monteiro and J. Ruostekoski

Categories: physics.atom-ph

\\

We investigate the Quantum Resonance (QR) regime of a periodically kicked

atomic Bose-Einstein condensate. We find that the clearest indicator of the

nonlinear dynamics is a surprisingly abrupt cut-off which appears on the main

``Talbot time'' Quantum Resonance. We show that this is due to a destructive

interference between the resonant kicking and an excitation path of

phonon-phonon interactions combining both Beliaev and Landau processes.

Investigation of dynamical instability reveals further symptoms of nonlinearity

such as a regime of exponential oscillations.

\\ ( http://arxiv.org/abs/0808.1088 , 751kb)

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The replacements:

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arXiv:0711.2975

replaced with revised version Fri, 1 Aug 2008 06:52:51 GMT (31kb)

Title: Self-Trapping of Bosons and Fermions in Optical Lattices

Authors: Dirk-S\"oren L\"uhmann, Kai Bongs, Klaus Sengstock, Daniela Pfannkuche

Categories: cond-mat.other

Comments: 4 pages, 4 figures. Published version

Journal-ref: Phys. Rev. Lett. 101, 050402 (2008)

DOI: 10.1103/PhysRevLett.101.050402

\\ ( http://arxiv.org/abs/0711.2975 , 31kb)

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arXiv:0807.4142

replaced with revised version Fri, 1 Aug 2008 19:28:23 GMT (50kb)

Title: Gutzwiller approach to the Bose-Hubbard model with random local

impurities

Authors: P. Buonsante, F. Massel, V. Penna and A. Vezzani

Categories: cond-mat.dis-nn

Comments: 12 pages, 5 figures. Some adjustments made to the manuscript and to

figures. A few relevant observations added throughout the manuscript.

Bibliography made more compact (collapsed some items)

\\ ( http://arxiv.org/abs/0807.4142 , 50kb)

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arXiv:0802.3351

replaced with revised version Fri, 1 Aug 2008 15:24:46 GMT (10kb)

Title: The computational difficulty of finding MPS ground states

Authors: Norbert Schuch, Ignacio Cirac, Frank Verstraete

Categories: quant-ph

Comments: 5 pages. v2: accepted version, Journal-Ref added

Journal-ref: Phys. Rev. Lett. 100, 250501 (2008)

\\ ( http://arxiv.org/abs/0802.3351 , 10kb)

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arXiv:0709.3381

replaced with revised version Sat, 2 Aug 2008 15:50:06 GMT (134kb)

Title: Generalized ABCD propagation for interacting atomic clouds

Authors: F. Impens and Ch. J. Bord\'e

Categories: cond-mat.other

Comments: 16 pages, 2 figures

\\ ( http://arxiv.org/abs/0709.3381 , 134kb)

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arXiv:0803.3277

replaced with revised version Sun, 3 Aug 2008 17:40:20 GMT (12kb)

Title: Virial theorems for trapped cold atoms

Authors: F\'elix Werner (LKB - Lhomond)

Categories: cond-mat.other

Comments: A few small corrections

Journal-ref: Physical Review A: Atomic, Molecular and Optical Physics 78 (2008)

025601

\\ ( http://arxiv.org/abs/0803.3277 , 12kb)

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arXiv:0805.1784

replaced with revised version Mon, 4 Aug 2008 04:49:50 GMT (41kb)

Title: Pairing in spin polarized two-species fermionic mixtures with mass

asymmetry

Authors: S. A. Silotri, D. Angom, H. Mishra and Amruta Mishra

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

Comments: 8 pages and 6 figures, few typos corrected, version to appear in EPJD

\\ ( http://arxiv.org/abs/0805.1784 , 41kb)

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arXiv:0807.4563

replaced with revised version Mon, 4 Aug 2008 19:09:01 GMT (781kb)

Title: Three-body Interactions in one Dimension

Authors: B. Capogrosso-Sansone, S. Wessel, H.P. B\"uchler, P. Zoller, and G.

Pupillo

Categories: cond-mat.other

Comments: 4 pages, 4 figures

\\ ( http://arxiv.org/abs/0807.4563 , 781kb)

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arXiv:0705.0943

replaced with revised version Tue, 5 Aug 2008 11:22:15 GMT (291kb)

Title: Localization by entanglement

Authors: Joachim Brand, Sergej Flach, Victor Fleurov, L. S. Schulmann, Denis

Tolkunov

Categories: cond-mat.other nlin.PS quant-ph

Comments: 6 pages, 4 figures; final published version with small changes in

response to reviewer comments

Journal-ref: Europhys. Lett., 83 (2008) 40002

DOI: 10.1209/0295-5075/83/40002

\\ ( http://arxiv.org/abs/0705.0943 , 291kb)

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arXiv:0804.3972 (*cross-listing*)

replaced with revised version Tue, 5 Aug 2008 00:55:42 GMT (15kb)

Title: Toward an AdS/cold atoms correspondence: a geometric realization of the

Schroedinger symmetry

Authors: D.T. Son

Categories: hep-th cond-mat.other nucl-th

Comments: 14 pages; v2: typos fixed, published version

Report-no: INT PUB 08-08

Journal-ref: Phys.Rev. D78 (2008) 046003

DOI: 10.1103/PhysRevD.78.046003

\\ ( http://arxiv.org/abs/0804.3972 , 15kb)

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arXiv:0707.3400

replaced with revised version Tue, 5 Aug 2008 07:14:11 GMT (1514kb)

Title: The Physics of Maxwell's demon and information

Authors: Koji Maruyama, Franco Nori, Vlatko Vedral

Categories: physics.hist-ph quant-ph

Comments: 24 pages, 13 figures. v2: some refs added, figs improved

\\ ( http://arxiv.org/abs/0707.3400 , 1514kb)

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arXiv:0709.4320

replaced with revised version Wed, 6 Aug 2008 09:41:22 GMT (348kb)

Title: Experimental observation of the Anderson transition with atomic matter

waves

Authors: Julien Chab\'e (PhLAM, CERLA), Gabriel Lemari\'e (LKB - Jussieu),

Beno\^it Gr\'emaud (LKB - Jussieu), Dominique Delande (LKB - Jussieu), Pascal

Szriftgiser (PhLAM, CERLA), Jean Claude Garreau (PhLAM, CERLA)

Categories: quant-ph cond-mat.mes-hall cond-mat.other nlin.CD physics.optics

Comments: 5 pages, 3 figures, revtex4

\\ ( http://arxiv.org/abs/0709.4320 , 348kb)

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arXiv:0710.5819

replaced with revised version Wed, 6 Aug 2008 04:27:05 GMT (173kb)

Title: Molecular formations in ultracold mixtures of interacting and

noninteracting atomic gases

Authors: T. Nishimura, A. Matsumoto, and H. Yabu

Categories: cond-mat.soft cond-mat.other

Comments: 35 pages, 14 figures

Journal-ref: Phys. Rev. A 77, 063612 (2008)

DOI: 10.1103/PhysRevA.77.063612

\\ ( http://arxiv.org/abs/0710.5819 , 173kb)

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arXiv:0712.1808

replaced with revised version Wed, 6 Aug 2008 12:43:05 GMT (1230kb,D)

Title: The FFLO state in the one-dimensional attractive Hubbard model and its

fingerprint in the spatial noise correlations

Authors: Andreas Luscher, Reinhard M. Noack, Andreas Laeuchli

Categories: cond-mat.str-el

Comments: 8 pages, 4 figures

Journal-ref: Phys. Rev. A 78, 013637 (2008)

DOI: 10.1103/PhysRevA.78.013637

\\ ( http://arxiv.org/abs/0712.1808 , 1230kb)

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arXiv:0804.1035

replaced with revised version Wed, 6 Aug 2008 17:32:59 GMT (26kb)

Title: Vortex core states in superfluid Fermi-Fermi mixtures with unequal

masses

Authors: M. Iskin

Categories: cond-mat.supr-con cond-mat.other

Comments: 4 pages with 3 figures, published PRA version

\\ ( http://arxiv.org/abs/0804.1035 , 26kb)

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arXiv:0806.4258

replaced with revised version Wed, 6 Aug 2008 07:59:06 GMT (1230kb)

Title: Photon echoes generated by reversing magnetic field gradients in a

rubidium vapour

Authors: G. H\'etet, M. Hosseini, B.M. Sparkes, D. Oblak, P. K. Lam and B. C.

Buchler

Categories: quant-ph

\\ ( http://arxiv.org/abs/0806.4258 , 1230kb)

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arXiv:0803.0559

replaced with revised version Thu, 7 Aug 2008 00:10:31 GMT (637kb)

Title: Simulation of an inhomogeneous Fermi gas through the BCS-BEC crossover

Authors: R. Jauregui, R. Paredes, L. Rosales-Zarate, and G. Toledo Sanchez

Categories: cond-mat.other

Comments: 14 pages,8 figures Comparison with results predicted by a recent

virial theorem is made. New relevant references are added

\\ ( http://arxiv.org/abs/0803.0559 , 637kb)

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arXiv:0803.2488

replaced with revised version Wed, 6 Aug 2008 20:27:38 GMT (57kb)

Title: BCS-BEC Crossover of a Quasi-two-dimensional Fermi Gas: the Significance

of Dressed Molecules

Authors: Wei Zhang, G.-D. Lin, and L.-M. Duan

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

Comments: 5 pages, 3 figures

Journal-ref: Phys. Rev. A 77, 063613 (2008)

DOI: 10.1103/PhysRevA.77.063613

\\ ( http://arxiv.org/abs/0803.2488 , 57kb)

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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 Fri Sep 26 2008 - 08:41:04 EST

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