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19932026
most citedThe role of artificial intelligence in achieving the Sustainable Development Goals

3.2k citations

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18 papers · 1 filter

cond-mat.stat-mech2008★ 31 cited

Critical properties of a trapped interacting Bose gas

A. Bezett, P. B. Blakie

We develop a practical theoretical formalism for studying the critical properties of a trapped Bose-Einstein condensate using the projected Gross-Pitaevskii equation. We show that…

physics.atom-ph2008★ 16 cited

Lattice Interferometer for Ultra-Cold Atoms

Mikkel F. Andersen, Tycho Sleator

We demonstrate an atomic interferometer based on ultra-cold atoms released from an optical lattice. This technique yields a large improvement in signal to noise over a related inte…

cond-mat.other2008★ 21 cited

PGPE theory of finite temperature collective modes for a trapped Bose gas

A. Bezett, P. B. Blakie

We develop formalism based on the projected Gross Pitaevskii equation to simulate the finite temperature collective mode experiments of Jin et al. [PRL 78, 764 (1997)]. We examine…

math-ph2008★ 32 cited

Quantum mechanical potentials related to the prime numbers and Riemann zeros

Daniel Schumayer, Brandon P. van Zyl, David A. W. Hutchinson

Prime numbers are the building blocks of our arithmetic, however, their distribution still poses fundamental questions. Bernhard Riemann showed that the distribution of primes coul…

gr-qc2008★ 24 cited

DeWitt-Schwinger Renormalization and Vacuum Polarization in d Dimensions

Robert T. Thompson, José P. S. Lemos

Calculation of the vacuum polarization, , and expectation value of the stress tensor, , has seen a recent resurgence, notably for black hole spacetimes. To d…

cond-mat.other2008★ 14 cited

Incoherence of Bose-Einstein condensates at supersonic speeds due to quantum noise

R. G. Scott, D. A. W. Hutchinson

We calculate the effect of quantum noise in supersonic transport of Bose-Einstein condensates. When an obstacle obstructs the flow of atoms, quantum fluctuations cause atoms to be…

cond-mat.stat-mech2008★ 529 cited

Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques

P. B. Blakie, A. S. Bradley, M. J. Davis +2

We review phase space techniques based on the Wigner representation that provide an approximate description of dilute ultra-cold Bose gases. In this approach the quantum field evol…

math.OA2008★ 2 cited

Naturality of Rieffel's Morita equivalence for proper actions

Astrid an Huef, S. Kaliszewski, Iain Raeburn +1

Suppose that a locally compact group acts freely and properly on the right of a locally compact space . Rieffel proved that if is an action of on a -algebra …

cond-mat.other2008★ 2 cited

Statistical mechanics of a Feshbach coupled Bose-Fermi gas in an optical lattice

O. Soe Sorensen, N. Nygaard, P. B. Blakie

We consider an atomic Fermi gas confined in a uniform optical lattice potential, where the atoms can pair into molecules via a magnetic field controlled narrow Feshbach resonance.…

cond-mat.other2008★ 19 cited

Analysis of the Holzmann-Chevallier-Krauth theory for the trapped quasi-two-dimensional Bose gas

R. N. Bisset, D. Baillie, P. B. Blakie

We provide an in depth analysis of the theory proposed by Holzmann, Chevallier and Krauth (HCK) [Europhys. Lett., {\bf 82}, 30001 (2008)] for predicting the temperature at which th…

cond-mat.other2008★ 31 cited

Dynamical thermalization and vortex formation in stirred 2D Bose-Einstein condensates

T. M. Wright, R. J. Ballagh, A. S. Bradley +2

We present a quantum mechanical treatment of the mechanical stirring of Bose-Einstein condensates using classical field techniques. In our approach the condensate and excited modes…

cond-mat.other2008★ 560 cited

Spontaneous vortices in the formation of Bose-Einstein condensates

C. N. Weiler, T. W. Neely, D. R. Scherer +3

Phase transitions are ubiquitous in nature, ranging from protein folding and denaturisation, to the superconductor-insulator quantum phase transition, to the decoupling of forces i…

quant-ph2008★ 64 cited

Analytic treatment of CRIB Quantum Memories for Light using Two-level Atoms

J. J. Longdell, G. Hétet, M. J. Sellars +1

It has recently been discovered that the optical analogue of a gradient echo in an optically thick material could form the basis of a optical memory that is both completely efficie…

gr-qc2008★ 4 cited

On the applicability of constrained symplectic integrators in general relativity

J. Frauendiener

The purpose of this note is to point out that a naive application of symplectic integration schemes for Hamiltonian systems with constraints such as SHAKE or RATTLE which preserve…

cond-mat.other2008★ 69 cited

Quasicondensation and coherence in the quasi-two-dimensional trapped Bose gas

R. N. Bisset, M. J. Davis, T. P. Simula +1

We simulate a trapped quasi-two-dimensional Bose gas using a classical field method. To interpret our results we identify the uniform Berezinskii-Kosterlitz-Thouless (BKT) temperat…

physics.comp-ph2008★ 41 cited

Numerical method for evolving the Projected Gross-Pitaevskii equation

P. B. Blakie

In this paper we describe a method for evolving the projected Gross-Pitaevskii equation (PGPE) for a Bose gas in a harmonic oscillator potential. The central difficulty in solving…

cond-mat.other2008★ 37 cited

Theory of correlations between ultra-cold bosons released from an optical lattice

E. Toth, A. M. Rey, P. B. Blakie

In this paper we develop a theoretical description of the correlations between ultra-cold bosons after free expansion from confinement in an optical lattice. We consider the system…

quant-ph2008★ 76 cited

Multi-Modal Properties and Dynamics of the Gradient Echo Quantum Memory

G. Hétet, J. J. Longdell, M. J. Sellars +2

We investigate the properties of a recently proposed Gradient Echo Memory (GEM) scheme for information mapping between optical and atomic systems. We show that GEM can be described…