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BEC - The Bose Gas

Bose Einstein condensation of an imperfect Bose gas using cluster expansion

Bose Einstein condensation of an imperfect Bose gas using cluster expansion

... and Bose–Einstein con- densation (BEC) were introduced by Bose [1] and Einstein ...of BEC in rubidium and sodium [3,4] was observed in ...of BEC of ideal and interacting ...

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The Thermodynamics and Fractional Statistics of the Spinor Bose Gas

The Thermodynamics and Fractional Statistics of the Spinor Bose Gas

... 1.1.1 Bose-Einstein Condensates Bose-Einstein condensates form when the de Broglie wavelength of particles becomes so large that the wavefunctions for particles overlap ...a gas of atoms to a very ...

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Violation of self-similarity in the expansion of a 1D Bose gas

Violation of self-similarity in the expansion of a 1D Bose gas

... DOI: 10.1103/PhysRevA.68.043601 PACS number 共 s 兲 : 03.75.Kk, 05.30.Jp I. INTRODUCTION The experimental achievement of Bose-Einstein conden- sation 共 BEC 兲 关 1 兴 has aroused a large interest in the physics ...

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Absorption Line Shape of a One-Dimensional Bose Gas. Abstract

Absorption Line Shape of a One-Dimensional Bose Gas. Abstract

... 1D bose gas offers us an excellent new opportunity to study the peculiar properties of quantum systems in reduced dimensions, in particular the consequence due to the absence of ...

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An Evaluation of Energy Per Particle of Bec (Bose-Einstein
Condensate) as a Function of (T/Tc) Using Non-Interacting
and Interacting Models

An Evaluation of Energy Per Particle of Bec (Bose-Einstein Condensate) as a Function of (T/Tc) Using Non-Interacting and Interacting Models

... ideal gas is adequate and under what condition the effect of interaction becomes ...dilute Bose gas are expected to be significant only in the presence of the condensate, since only in this case the ...

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Collective oscillations of a trapped atomic gas in low dimensions and thermodynamics of one-dimensional Bose gas

Collective oscillations of a trapped atomic gas in low dimensions and thermodynamics of one-dimensional Bose gas

... At T = 0, bosons condense in the ground state of the system described by a single wave- function and they behave as a coherent matter wave. BEC phase is a consequence of quantum statistical eects because it occurs ...

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Large-Scale Bose-Einstein Condensation in an Atomic Gas by Applying an Electric Field

Large-Scale Bose-Einstein Condensation in an Atomic Gas by Applying an Electric Field

... large-scale BEC has never been observed ...create BEC with 5×10 5 atoms and won the Nobel Prize in Physics in ...the BEC experiment of cesium atoms, scientists created BEC with ...that ...

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3.2 BEC critical temperature

3.2 BEC critical temperature

... 3 Bose-Einstein Condensation of An Ideal Gas An ideal gas consisting of non-interacting Bose particles is a fictitious system since every realistic Bose gas shows some level of ...

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Measurement of the density profile of quantized vortices and of the equation of state in a 3D interacting Bose gas

Measurement of the density profile of quantized vortices and of the equation of state in a 3D interacting Bose gas

... The comparison of the data with HF theory suffers from a number of limitations, the main one being imaging resolution. The effect of low resolution on the chemical potential plot is to smooth the peak feature and lower ...

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Finite Temperature Excitations of a Trapped Bose Gas by Feynman-Kac Path Integral Approach

Finite Temperature Excitations of a Trapped Bose Gas by Feynman-Kac Path Integral Approach

... Even though ref[7] has the best agreement with JILA data till date, solving coupled partial differential equations numerically is not an easy task. The chief purpose of this paper is to go beyond mean field theory with ...

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Ultracold Fermi and Bose Gases and Spinless Bose Charged Sound Particles

Ultracold Fermi and Bose Gases and Spinless Bose Charged Sound Particles

... of Bose or Fermi liquid by action of the static magnetic ...quantum gas) in the uppermost hyperfine state, we consider the motion of “charged fluid particles” by means of a charged longitudinal elastic wave ...

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Phonon Superradiance in Dilute Gas
Bose-Einstein Condensates

Phonon Superradiance in Dilute Gas Bose-Einstein Condensates

... dilute gas Bose-Einstein ...non-draining BEC vortex, omitting the need for a central drain which somewhat simplifies experimental ...approaches BEC vortex core and it is this region that is ...

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AN EVALUATION OF CRITICAL TEMPERATURE (TC) FOR BOSE-EINSTEIN CONDENSATION (BEC) OF THE ATOM-MOLECULE MIXTURE AT THE TOTAL FIXED ATOMIC DENSITY

AN EVALUATION OF CRITICAL TEMPERATURE (TC) FOR BOSE-EINSTEIN CONDENSATION (BEC) OF THE ATOM-MOLECULE MIXTURE AT THE TOTAL FIXED ATOMIC DENSITY

... for Bose-Einstein condensation of the atom- molecule mixture at the fixed total atomic density, one studies the effective atom-molecular theory 1,2 ...the gas in the normal state, one considers the two- ...

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Realisation and Characterisation the BEC  for 87Rb Atoms

Realisation and Characterisation the BEC for 87Rb Atoms

... Figure 3. Optimisation the MOT loading into magnetic trap. Left: The atom number in the MOT is observed with different loading times. Right: The atoms are held for different storage times in the magnetic trap. The number ...

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Exponents of spectral functions in the one-dimensional Bose gas

Exponents of spectral functions in the one-dimensional Bose gas

... The exact exponents of the edge singularities in dynamical correlation functions of the 1D Bose gas have been calculated by Imambekov and Glazman. 6 They obtained the phase shifts through the so-called ...

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A THEORETICAL STUDY OF BEC (BOSE-EINSTEIN CONDENSATE) IN ONE DIMENSIONAL OPTICAL LATTICE AND EVALUATION OF GROUND STATE PROPERTIES OF A BEC IN 1D LATTICE AND COMPARISON WITH 3D OPTICAL LATTICE AND TRAPPED BOSONS

A THEORETICAL STUDY OF BEC (BOSE-EINSTEIN CONDENSATE) IN ONE DIMENSIONAL OPTICAL LATTICE AND EVALUATION OF GROUND STATE PROPERTIES OF A BEC IN 1D LATTICE AND COMPARISON WITH 3D OPTICAL LATTICE AND TRAPPED BOSONS

... of BEC in 3D-optical lattice and also BEC for trapped ...shaped BEC, Gaussian variational approximation, Thomas-Fermi approximation, Radial and axial trapping frequency, s-wave scattering length, ...

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BEC 2012 Vs BEC Summary of Major Amendments

BEC 2012 Vs BEC Summary of Major Amendments

... 4 BEC 2012 BEC 2015 1) Definition of direct digital control Not specified New definition added in section 2 2) Definition of unitary air-conditioner Not explicitly related ...

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BEC Feed Solutions. Steve Blake BEC Feed Solutions

BEC Feed Solutions. Steve Blake BEC Feed Solutions

... Amino Acids Microbial Enzymes Microbial Protein Microbial Protein Small Intestine Enzyme Free Amino Acids Free Amino Acids Absorbed.  Toxic dose generally regarded [r] ...

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Many-body excitations in trapped Bose gas: A non-hermitian view

Many-body excitations in trapped Bose gas: A non-hermitian view

... see, e.g., [63]. The modeling of such an effect requires a systematic description of truly many-body dynamics, in particular pair excitations [8, 37, 61, 62, 57, 33]. In this paper, our goal is to describe aspects of the ...

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Condensation of ideal Bose gas confined in a box within a canonical ensemble

Condensation of ideal Bose gas confined in a box within a canonical ensemble

... a Bose gas are usually studied in the grand-canonical formulation where energy and particle number are fixed on the ...thermal gas, consisting of excited states, can be shown to vanish for zero ...

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