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

Date: Mon, 12 Jun 2006 13:37:11 +1000 (EST)

Date: Mon, 12 Jun 2006 13:37:11 +1000 (EST)

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

A happy birthday to Queen Elizabeth II: despite actually being born on 21 April

1926, in Australia we have a public holiday today to celebrate.

Mailing list home page:

http://www.physics.uq.edu.au/people/mdavis/matts_arXiv/

Abstracts for this week:

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Paper: cond-mat/0606041

Date: Thu, 1 Jun 2006 20:05:36 GMT (137kb)

Title: Effective Potential and Thermodynamics for a Coupled Two-Field Bose Gas

Model

Authors: Marcus Benghi Pinto, Rudnei O. Ramos and Frederico F. de Souza Cruz

Comments: 21 pages, 4 eps figures

Subj-class: Other

\\

We study the thermodynamics of a two-species homogeneous and dilute Bose gas

that is self-interacting and quadratically coupled to each other. We make use

of field theoretical functional integral techniques and evaluate the one-loop

finite temperature effective potential for this system considering the

resummation of the leading order temperature dependent as well as infrared

contributions. The symmetry breaking pattern associated to the model is then

studied by considering different values of self and inter-species couplings. We

pay special attention to the eventual appearance of reentrant phases and/or

shifts in the observed critical temperatures as compared to the monoatomic

(one-field Bose) case.

\\ ( http://arXiv.org/abs/cond-mat/0606041 , 137kb)

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Paper: cond-mat/0606043

Date: Fri, 2 Jun 2006 17:39:23 GMT (297kb)

Title: Zero Temperature Thermodynamics of Asymmetric Fermi Gases at Unitarity

Authors: Aurel Bulgac and Michael McNeil Forbes

Comments: 4 pages and 3 figures, revtex4

Report-no: NT_at_UW-06-12

Subj-class: Superconductivity

\\

The equation of state of a dilute two-component asymmetric Fermi gas at

unitarity is subject to strong constraints, which affect the spatial density

profiles in atomic traps. We determine the relation between the structure of

the spatial density profiles and the T=0 equation of state, based on the most

accurate theoretical predictions available. We also show how the equation of

state can be determined from experimental observations. The current constraints

require the existence of non-trivial partially polarized asymmetric phases.

\\ ( http://arXiv.org/abs/cond-mat/0606043 , 297kb)

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Paper: cond-mat/0606046

Date: Fri, 2 Jun 2006 16:58:10 GMT (363kb)

Title: Magnetically tuned spin dynamics resonance

Authors: J. Kronj\"ager, C. Becker, P. Navez, K. Bongs, K. Sengstock

Subj-class: Other

\\

We present the experimental observation of a magnetically tuned resonance

phenomenon resulting from spin mixing dynamics of ultracold atomic gases. In

particular we study the magnetic field dependence of spin conversion in F=2

87Rb spinor condensates in the crossover from interaction dominated to

quadratic Zeeman dominated dynamics. We discuss the observed phenomenon in the

framework of spin dynamics as well as matter wave four wave mixing. Furthermore

we show that the validity range of the single mode approximation for spin

dynamics is significantly extended in the regime of high magnetic field.

\\ ( http://arXiv.org/abs/cond-mat/0606046 , 363kb)

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Paper: cond-mat/0606050

Date: Fri, 2 Jun 2006 05:16:37 GMT (53kb)

Title: Finite temperature Drude weight of an integrable Bose chain

Authors: Michael Bortz

Comments: 11 pages, 2 figures

Subj-class: Statistical Mechanics

\\

We study the Drude weight $D(T)$ at finite temperatures $T$ of an integrable

bosonic model where the particles interact via nearest-neighbour coupling on a

chain. At low temperatures, $D(T)$ is shown to be universal in the sense that

this region is equivalently described by a Gaussian model. This low-temperature

limit is also relevant for the integrable one-dimensional Bose gas. We then use

the thermodynamic Bethe ansatz to confirm the low-temperature result, to obtain

the high temperature limit of $D(T)$ and to calculate $D(T)$ numerically.

\\ ( http://arXiv.org/abs/cond-mat/0606050 , 53kb)

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Paper: cond-mat/0606069

Date: Fri, 2 Jun 2006 18:19:26 GMT (70kb)

Title: Three-fermion problems in optical lattices

Authors: T. Luu, A. Schwenk

Comments: 4 pages, 4 figures

Report-no: UCRL-JRNL-221678

Subj-class: Other

\\

We present exact results for the spectra of three fermionic atoms in a single

well of an optical lattice. For the three lowest hyperfine states of Li6 atoms,

we find a Borromean state across the region of the distinct pairwise Feshbach

resonances. For K40 atoms, nearby Feshbach resonances are known for two of the

pairs, and a bound three-body state develops towards the positive

scattering-length side. In addition, we study the sensitivity of our results to

atomic details. The predicted few-body phenomena can be realized in optical

lattices in the limit of low tunneling.

\\ ( http://arXiv.org/abs/cond-mat/0606069 , 70kb)

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Paper: cond-mat/0605335

replaced with revised version Fri, 2 Jun 2006 06:58:14 GMT (214kb)

Title: Ultracold polarized Fermi gas at intermediate temperatures

Authors: Jani-Petri Martikainen

Comments: Added few new citations, minor changes elsewhere

Subj-class: Statistical Mechanics

\\ ( http://arXiv.org/abs/cond-mat/0605335 , 214kb)

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Paper: cond-mat/0606092

Date: Sun, 4 Jun 2006 05:35:58 GMT (658kb)

Title: Dynamical evolution of a doubly-quantized vortex imprinted in a

Bose-Einstein Condensate

Authors: A. Mu\~{n}oz Mateo and V. Delgado (Univ. La Laguna)

Comments: 5 pages, 4 figures

Subj-class: Other

\\

The recent experiment by Y. Shin \emph{et al.} [Phys. Rev. Lett. \textbf{93},

160406 (2004)] on the decay of a doubly quantized vortex imprinted in $^{23}%

$Na condensates is analyzed by numerically solving the Gross-Pitaevskii

equation. Our results, which are in very good quantitative agreement with the

experiment, demonstrate that the vortex decay is mainly a consequence of

dynamical instability. Despite apparent contradictions, the local density

approach is consistent with the experimental results. The monotonic increase

observed in the vortex lifetimes is a consequence of the fact that, for large

condensates, the measured lifetimes incorporate the time it takes for the

initial perturbation to reach the central slice. When considered locally, the

splitting occurs approximately at the same time in every condensate, regardless

of its size.

\\ ( http://arXiv.org/abs/cond-mat/0606092 , 658kb)

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Paper: cond-mat/0606099

Date: Mon, 5 Jun 2006 06:48:38 GMT (415kb)

Title: Spontaneous spin textures in dipolar spinor condensates

Authors: S. Yi and H. Pu

Comments: 4.1 pages, 4 figures

Subj-class: Other

\\

We have mapped out a detailed phase diagram that shows the ground state

structure of a spin-1 condensate with magnetic dipole-dipole interactions. We

show that the interplay between the dipolar and the spin-exchange interactions

induces a rich variety of quantum phases that exhibit spontaneous magnetic

ordering in the form of intricate spin textures.

\\ ( http://arXiv.org/abs/cond-mat/0606099 , 415kb)

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Paper: cond-mat/0606117

Date: Mon, 5 Jun 2006 16:45:51 GMT (89kb)

Title: Fermions at unitarity and Haldane Exclusion Statistics

Authors: R.K. Bhaduri, M.V.N. Murthy and M.K. Srivastava

Comments: 4 pages, 1 postscript figure

Subj-class: Other

\\

We consider a gas of neutral fermionic atoms at ultra-low temperatures, with

the attractive interaction tuned to Feshbach resonance. We calculate the

variation of the chemical potential and the energy per particle as a function

of temperature by assuming the system to be an ideal gas obeying the Haldane-Wu

fractional exclusion statistics. Our results are in good agreement with the

recently published Monte Carlo calculations of two groups. We also present

results for a harmonically trapped gas.

\\ ( http://arXiv.org/abs/cond-mat/0606117 , 89kb)

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Paper: cond-mat/0601032

replaced with revised version Sat, 3 Jun 2006 20:11:30 GMT (51kb)

Title: Imaging of critical correlations in optical lattices and atomic traps

Authors: Qian Niu, Iacopo Carusotto, and A. B. Kuklov

Comments: 10 revtex pages, 5 figures, replaced with revised more detailed

version

Subj-class: Other

Journal-ref: Phys. Rev. A 73, 053604 (2006)

\\ ( http://arXiv.org/abs/cond-mat/0601032 , 51kb)

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Paper: cond-mat/0602319

replaced with revised version Mon, 5 Jun 2006 19:59:42 GMT (99kb)

Title: Searching for a Supersolid in Cold Atom Optical Lattices

Authors: V.W. Scarola, E. Demler, and S. Das Sarma

Comments: 5 pages, 4 figures

Subj-class: Other

Journal-ref: Phys. Rev. A 73, 051601(R) (2006)

\\ ( http://arXiv.org/abs/cond-mat/0602319 , 99kb)

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Paper: cond-mat/0604063

replaced with revised version Mon, 5 Jun 2006 16:49:44 GMT (14kb)

Title: Disorder contra Mermin-Wagner-Hohenberg Effect: From Classical Spin

Systems to Ultracold Atomic Gases

Authors: Jan Wehr (University of Arizona), Armand Niederberger (ICFO), Laurent

Sanchez-Palencia (LCFIO), Maciej Lewenstein (ICFO)

Comments: minor changes

Proxy: ccsd ccsd-00022177

Subj-class: Other

\\ ( http://arXiv.org/abs/cond-mat/0604063 , 14kb)

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Paper: cond-mat/0604184

replaced with revised version Fri, 2 Jun 2006 22:59:57 GMT (32kb)

Title: Two-species fermion mixtures with population imbalance

Authors: M. Iskin and C. A. R. Sa de Melo

Comments: 4 pages with 4 figures

Subj-class: Superconductivity; Other

\\ ( http://arXiv.org/abs/cond-mat/0604184 , 32kb)

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Paper: quant-ph/0606033

Date: Mon, 5 Jun 2006 14:14:34 GMT (928kb)

Title: Observation of Strong Coupling between One Atom and a Monolithic

Microresonator

Authors: Takao Aoki, B. Dayan, E. Wilcut, W. P. Bowen, A. S. Parkins, H. J.

Kimble, T. J. Kippenberg, K. J. Vahala

\\

Strong coupling is achieved for individual Cesium atoms falling through the

evanescent field of a high-Q toroidal microresonator. From observations of

transit events as a function of atom-cavity detuning, we determine g_0^m/2pi ~

(40 +/- 5) MHz for interactions near the surface of the resonator, where 2g_0^m

is the single-photon Rabi frequency. Strong coupling g_0^m > (gamma,kappa) is

thereby demonstrated for the interaction of single atoms and optical photons in

a monolithic resonator, where (gamma,kappa)/2pi ~ (2.6,18) MHz are the

dissipative rates for atom and cavity field. By advancing beyond the

conventional setting of Fabry-Perot cavities, our work opens a new avenue for

investigations of optical processes with single atoms and photons in

lithographically fabricated microresonators. Applications include the

implementation of quantum networks, scalable quantum logic with photons, and

quantum information processing on atom chips.

\\ ( http://arXiv.org/abs/quant-ph/0606033 , 928kb)

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Paper: physics/0603107

replaced with revised version Mon, 5 Jun 2006 16:49:38 GMT (540kb)

Title: Bose-Einstein Condensate Driven by a Kicked Rotor in a Finite Box

Authors: K. Henderson, H. Kelkar, T.C. Li, B. Gutierrez-Medina and M.G. Raizen

Comments: 7 pages, 8 figures

Subj-class: Atomic Physics

\\ ( http://arXiv.org/abs/physics/0603107 , 540kb)

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Paper: cond-mat/0606129

Date: Tue, 6 Jun 2006 01:12:07 GMT (780kb)

Title: Dynamics of rotating Bose-Einstein condensates probed by Bragg

scattering

Authors: S. R. Muniz, D. S. Naik, M. Bhattacharya and C. Raman

Comments: 13 pages, 5 figures. Invited paper submitted to a special issue on

"Nonlinear Waves" of the (Elsevier) journal 'Math. Comput. Simul.', for

participants in the 4th IMACS International Conference on Nonlinear Evolution

Equations and Wave Phenomena (2005). Visit our website at

http://www.physics.gatech.edu/chandra for additional information

Subj-class: Other; Mesoscopic Systems and Quantum Hall Effect;

Superconductivity

\\

Gaseous Bose-Einstein condensates (BECs) have become an important test bed

for studying the dynamics of quantized vortices. In this work we use two-photon

Doppler sensitive Bragg scattering to study the rotation of sodium BECs. We

analyze the microscopic flow field and present laboratory measurements of the

coarse-grained velocity profile. Unlike time-of-flight imaging, Bragg

scattering is sensitive to the direction of rotation and therefore to the phase

of the condensate. In addition, we have non-destructively probed the vortex

flow field using a sequence of two Bragg pulses.

\\ ( http://arXiv.org/abs/cond-mat/0606129 , 780kb)

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Paper: cond-mat/0606151

Date: Tue, 6 Jun 2006 16:12:30 GMT (344kb)

Title: Structure of vortices in rotating Bose-Einstein condensates

Authors: Gentaro Watanabe, S. Andrew Gifford, Gordon Baym, C. J. Pethick

Comments: 9 pages, 9 figures

Report-no: NORDITA-2006-15

Subj-class: Other; Mesoscopic Systems and Quantum Hall Effect

\\

We calculate the structure of individual vortices in rapidly rotating

Bose-Einstein condensates in a transverse harmonic trap. Making a Wigner-Seitz

approximation for the unit cell of the vortex lattice, we derive the

Gross-Pitaevskii equation for the condensate wave function in each cell of the

lattice, including effects of varying coarse grained density. We calculate the

Abrikosov parameter, the fractional core area, and the energy of individual

cells.

\\ ( http://arXiv.org/abs/cond-mat/0606151 , 344kb)

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Paper: cond-mat/0606155

Date: Tue, 6 Jun 2006 16:56:15 GMT (404kb)

Title: Coherent matter waves emerging from Mott-insulators

Authors: K. Rodriguez, S.R. Manmana, M. Rigol, R.M. Noack and A. Muramatsu

Comments: 19 pages, 11 figures. Submitted to New Journal of Physics

Subj-class: Other

\\

We study the formation of (quasi-)coherent matter waves emerging from a Mott

insulator for strongly interacting bosons on a one-dimensional lattice. It has

been shown previously that a quasi-condensate emerges at momentum \pi/2a, where

a is the lattice constant, in the limit of infinitely strong repulsion

(hard-core bosons). Here we show that this phenomenon persists for all values

of the repulsive interaction that lead to a Mott insulator at a commensurate

filling. The non-equilibrium dynamics of hard-core bosons is treated exactly by

means of a Jordan-Wigner transformation, and the generic case is studied using

a time-dependent density matrix renormalization group technique. Different

methods for controlling the emerging matter wave are discussed.

\\ ( http://arXiv.org/abs/cond-mat/0606155 , 404kb)

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Paper: cond-mat/0605350

replaced with revised version Tue, 6 Jun 2006 15:53:22 GMT (220kb)

Title: The Fermi-Hubbard model at unitarity

Authors: Evgeni Burovski, Nikolay Prokof'ev, Boris Svistunov and Matthias

Troyer

Comments: v2: minor corrections, fig 7 replaced

Subj-class: Superconductivity; Statistical Mechanics

\\ ( http://arXiv.org/abs/cond-mat/0605350 , 220kb)

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Paper (*cross-listing*): hep-th/0605259

replaced with revised version Tue, 6 Jun 2006 14:47:05 GMT (23kb)

Title: Symmetry Aspects in Nonrelativistic Multi-Scalar Field Models and

Application to a Coupled Two-Species Dilute Bose Gas

Authors: Rudnei O Ramos and Marcus B Pinto

Comments: 8 pages, 1 eps figure, IOP style. Based on a talk given by R. O.

Ramos at the QFEXT05 workshop, Barcelona, Spain, September 5-9, 2005. One

reference was updated

Subj-class: High Energy Physics - Theory; Soft Condensed Matter

Journal-ref: J.Phys. A39 (2006) 6687-6693

\\ ( http://arXiv.org/abs/hep-th/0605259 , 23kb)

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Paper: quant-ph/0606037

Date: Mon, 5 Jun 2006 21:49:53 GMT (690kb)

Title: Spinor Dynamics-Driven Formation of a Dual-Beam Atom Laser

Authors: N. Lundblad, R. J. Thompson, D. C. Aveline, L. Maleki

Comments: 4 pages, 4 figures

\\

We demonstrate a novel dual-beam atom laser formed by outcoupling oppositely

polarized components of an F=1 spinor Bose-Einstein condensate whose Zeeman

sublevel populations have been coherently evolved through spin dynamics. The

condensate is formed through all-optical means using a single-beam running-wave

dipole trap. We create a condensate in the field-insensitive $m_F=0$ state, and

drive coherent spin-mixing evolution through adiabatic compression of the

initially weak trap. Such dual beams, number-correlated through the angular

momentum-conserving reaction $2m_0\leftrightharpoons m_{+1}+m_{-1}$, have been

proposed as tools to explore entanglement and squeezing in Bose-Einstein

condensates, and have potential use in precision phase measurements.

\\ ( http://arXiv.org/abs/quant-ph/0606037 , 690kb)

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Paper: quant-ph/0606047

Date: Tue, 6 Jun 2006 17:23:03 GMT (63kb)

Title: Preparation of atomic velocities by bound-state to resonance conversion

Authors: F. Delgado, A. Ruschhaupt, J. G. Muga

\\

A procedure is proposed to control the average and width of the velocity

distribution of ultra-cold atoms. The atoms are set initially in a bound state

of an optical trap formed by an inner red detuned laser and an outer blue

detuned laser. The bound state is later converted into a resonance by a

suitable change of the laser intensities. An optimal time dependence of the

switching process, between the sudden and adiabatic limits, adjusts the final

translational energies to the Lorentzian shape of the resonance state.

\\ ( http://arXiv.org/abs/quant-ph/0606047 , 63kb)

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Paper: quant-ph/0601202

replaced with revised version Tue, 6 Jun 2006 10:40:56 GMT (369kb)

Title: Probing BEC phase fluctuations with atomic quantum dots

Authors: M. Bruderer, D. Jaksch

Comments: 11 pages, 3 figures

Journal-ref: New J. Phys. 8 87 (2006)

DOI: 10.1088/1367-2630/8/6/087

\\ ( http://arXiv.org/abs/quant-ph/0601202 , 369kb)

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Paper: cond-mat/0605604

replaced with revised version Wed, 7 Jun 2006 11:29:47 GMT (61kb)

Title: Pi-Josephson Junction and Spontaneous Superflow in Rings from Ultracold

Fermionic Atomic Gases

Authors: Miodrag L. Kulic

Comments: 6 pages, 3 figures, Introduction and List of References updated

Subj-class: Statistical Mechanics; Strongly Correlated Electrons

\\ ( http://arXiv.org/abs/cond-mat/0605604 , 61kb)

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Paper: quant-ph/0606062

Date: Wed, 7 Jun 2006 19:29:33 GMT (652kb)

Title: Probing the quantum state of a guided atom laser pulse

Authors: Kevin L. Moore, Subhadeep Gupta, Kater W. Murch, and Dan M.

Stamper-Kurn

Comments: 4 pages, 3 figures

\\

We describe bichromatic superradiant pump-probe spectroscopy as a tomographic

probe of the Wigner function of a dispersing particle beam. We employed this

technique to characterize the quantum state of an ultracold atomic beam,

derived from a Rb-87 Bose-Einstein condensate, as it propagated in a 2.5 mm

diameter circular waveguide. Our measurements place an upper bound on the

longitudinal phase-space area occupied by the 300,000 atom beam of 9(1) $\hbar$

and a lower bound on the coherence length (L > 13 microns). These results are

consistent with full quantum degeneracy after multiple orbits around the

waveguide.

\\ ( http://arXiv.org/abs/quant-ph/0606062 , 652kb)

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Paper: cond-mat/0606201

Date: Thu, 8 Jun 2006 01:41:48 GMT (200kb)

Title: Quantum limits to bosonic center-of-mass measurements

Authors: Timothy Vaughan, Peter Drummond, Gerd Leuchs

Comments: 6 pages, 2 figures. Submitted to PRA

Subj-class: Other; Mesoscopic Systems and Quantum Hall Effect

\\

We discuss various subtleties in identifying the mean position

(center-of-mass) of a bosonic cloud in the presence of particle number

fluctuations. We introduce a standard quantum limit for these measurements and

discuss this limit in the context of both photons and ultra-cold atoms. The

difference between the actual mean-position fluctuation and this limit is

evidence for quantum wave-packet spreading. However, this cannot be readily

observed for normal pulses in a linear dispersive medium, due to classical

pulse broadening. For this reason, we study the evolution of photonic and

matter-wave solitons, where this is suppressed. In the photonic case, we show

that this intrinsic quantum diffusion of the mean position can contribute

significantly to uncertainties in soliton pulse arrival times. On the other

hand, we discuss ways in which the relatively long lifetimes of attractive

bosons in matter-wave solitons may be used to demonstrate quantum interference

between massive objects composed of thousands of particles.

\\ ( http://arXiv.org/abs/cond-mat/0606201 , 200kb)

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Paper: cond-mat/0606213

Date: Thu, 8 Jun 2006 13:32:11 GMT (545kb)

Title: Photonic crystal optical waveguides for on-chip Bose-Einstein

condensates

Authors: J. Bravo-Abad, M. Ibanescu, J.D. Joannopoulos, M. Soljacic

Comments: 5 pages, 4 figures

Subj-class: Materials Science

\\

We propose an on-chip optical waveguide for Bose-Einstein condensates based

on the evanescent light fields created by surface states of a photonic crystal.

It is shown that the modal properties of these surface states can be tailored

to confine the condensate at distances from the chip surface significantly

longer that those that can be reached by using conventional index-contrast

guidance. We numerically demonstrate that by index-guiding the surface states

through two parallel waveguides, the atomic cloud can be confined in a

two-dimensional trap at about 1$\mu$m above the structure using a power of

0.1mW.

\\ ( http://arXiv.org/abs/cond-mat/0606213 , 545kb)

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Paper: cond-mat/0606216

Date: Thu, 8 Jun 2006 14:32:52 GMT (575kb)

Title: The Mott insulator transition in two dimensions

Authors: I. B. Spielman, W. D. Phillips, and J. V. Porto

Subj-class: Other

\\

Cold atoms confined in periodic potentials are remarkably versatile quantum

systems for implementing simple models prevalent in condensed matter theory. In

the current experiment, we realize the 2D Bose-Hubbard model by loading a

Bose-Einstein condensate into an optical lattice, and we study the resulting

Mott insulating state (a phase of matter in which atoms are localized on

specific lattice sites). We measure momentum distributions which agree

quantitatively with theory (no adjustable parameters). We also study

correlations in atom shot nose and observe a pronounced dependence on the

lattice depth, this dependence indicates geometric effects to first order and

suggests deviations due to higher order corrections.

\\ ( http://arXiv.org/abs/cond-mat/0606216 , 575kb)

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Paper: quant-ph/0606065

Date: Thu, 8 Jun 2006 03:39:59 GMT (52kb)

Title: Perfect quantum state transfer with spinor bosons on weighted graphs

Authors: David L. Feder

Comments: 4 pages, 2 figures, revtex

\\

A duality between the properties of many spinor bosons on a regular lattice

and those of a single particle on a weighted graph reveals that a quantum

particle can traverse an infinite hierarchy of networks with perfect

probability in polynomial time, even as the number of nodes increases

exponentially. The one-dimensional `quantum wire' and the hypercube are special

cases in this construction, where the number of spin degrees of freedom is

equal to one and the number of particles, respectively. An implementation of

near-perfect quantum state transfer across a weighted parallelepiped with

ultracold atoms in optical lattices is discussed.

\\ ( http://arXiv.org/abs/quant-ph/0606065 , 52kb)

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Paper: quant-ph/0606073

Date: Thu, 8 Jun 2006 13:36:30 GMT (458kb)

Title: Ramsey interferometry with oppositely detuned fields

Authors: D. Seidel, J.G. Muga

Comments: 6 pages, 6 figures

\\

We report a narrowing of the interference pattern obtained in an atomic

Ramsey interferometer if the two separated fields have different frequency and

their phase difference is controlled. The width of the Ramsey fringes depends

inversely on the free flight time of ground state atoms before entering the

first field region in addition to the time between the fields. The effect is

stable also for atomic wavepackets with initial position and momentum

distributions and for realistic mode functions.

\\ ( http://arXiv.org/abs/quant-ph/0606073 , 458kb)

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Paper: quant-ph/0606076

Date: Thu, 8 Jun 2006 15:09:31 GMT (22kb)

Title: Polarization squeezing by optical Faraday rotation

Authors: Jacob F. Sherson and Klaus Molmer

Comments: 4 pages, 4 figures

\\

We show that it is possible to generate continuous-wave fields and pulses of

polarization squeezed light by sending classical, linearly polarized laser

light twice through an atomic sample which causes an optical Faraday rotation

of the field polarization. We characterize the performance of the process, and

we show that an appreciable degree of squeezing can be obtained under realistic

physical assumptions.

\\ ( http://arXiv.org/abs/quant-ph/0606076 , 22kb)

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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/ ========================================================================= 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 Mon Jun 12 2006 - 13:37:11 EST

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