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Ground state and vortex states of bosons in an anisotropic trap: A variational approach

M.P. Singh, A. L. Satheesha

arXiv:physics/9812005The European Physical Journal DJan 1, 19995 citations

Ground-state correlation properties of charged bosons trapped in strongly anisotropic harmonic potentials

Przemysław Kościk, Anna Okopińska

arXiv:1201.5504The European Physical Journal BMar 1, 20126 citations

Ground State Properties for Bose-Condensed Gas in Anisotropic Traps

徐志君, 李海彬, 辛晓天 +2 more

Chinese Physics LettersJan 1, 20060 citations

Aspect ratio analysis for ground states of bosons in anisotropic traps

N. Ilinski, Alexander Moroz

Characteristics of the initial condensate in the recent experiment on Bose-Einstein condensation (BEC) of 87 Rb atoms in an anisotropic magnetic trap are discussed.Given the aspect ratio R , the quality of BEC is estimated.A simple analytical ansatz for the initial condensate wave function is proposed as a function of the aspect ratio which, in contrast to the Baym-Pethick trial wave function, can be used for any interaction strength, reproduces both the weak and the strong interaction limits, and which is in better agreement with numerical results than the latter.Characteristics of the initial condensate in the recent experiment on Bose-Einstein condensation (BEC) of 87 Rb atoms in an anisotropic magnetic trap are discussed.Given the aspect ratio R , the quality of BEC is estimated.A simple analytical ansatz for the initial condensate wave function is proposed as a function of the aspect ratio which, in contrast to the Baym-Pethick trial wave function, can be used for any interaction strength, reproduces both the weak and the strong interaction limits, and which is in better agreement with numerical results than the latter.

Journal of Research of the National Institute of Standards and TechnologyJul 1, 19962 citations

A new method for bosons in anisotropic traps

Rong-Sheng Han, Kelin Wang, Gao Xianlong +1 more

Physics Letters AJun 1, 20010 citations

Aspect Ratio Analysis for Ground States of Bosons in Anisotropic Traps

Kirill Ilinski, Alexander Moroz

Introduction Bose-Einstein condensation (BEC) is a phenomenon where a macroscopic number of particles is in the ground state of the system at finite temperature. The phenomenon of BEC plays a significant role in many branches of physics [1]. Because of the presence of strong interactions, BEC has been inferred rather than directly observed so far. Recently, however, three different groups have reported the direct evidence of BEC in weakly interacting systems of atoms such as rubidium [2], lithium [3], and sodium [4], confined in anisotropic magnetic traps and cooled down to very low temperatures. These experiments show promise of becoming a new laboratory for quantum statistical phenomena that are inaccessible to other conventional techniques and of enabling us to experimental study phenomena that have been addressed only theoretically, such as spontaneous symmetry breaking and decay of unstable macroscopic states. They may also advance our understanding of superconductivity andIntroduction Bose-Einstein condensation (BEC) is a phenomenon where a macroscopic number of particles is in the ground state of the system at finite temperature. The phenomenon of BEC plays a significant role in many branches of physics [1]. Because of the presence of strong interactions, BEC has been inferred rather than directly observed so far. Recently, however, three different groups have reported the direct evidence of BEC in weakly interacting systems of atoms such as rubidium [2], lithium [3], and sodium [4], confined in anisotropic magnetic traps and cooled down to very low temperatures. These experiments show promise of becoming a new laboratory for quantum statistical phenomena that are inaccessible to other conventional techniques and of enabling us to experimental study phenomena that have been addressed only theoretically, such as spontaneous symmetry breaking and decay of unstable macroscopic states. They may also advance our understanding of superconductivity and

Jan 1, 19962 citations

Aspect ratio analysis for ground states of bosons in anisotropic traps

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Aspect ratio analysis for ground states of bosons in anisotropic traps

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