scholarly journals Acceleration of adiabatic transport of interacting particles and rapid manipulations of a dilute Bose gas in the ground state

2012 ◽  
Vol 86 (6) ◽  
Author(s):  
Shumpei Masuda
Keyword(s):  
Ground State ◽  
Bose Gas ◽  
Interacting Particles ◽  
Dilute Bose Gas

scholarly journals Bose Gas in Classical Environment at Low Temperatures

2020 ◽  
Vol 65 (11) ◽  
pp. 1002
Author(s):  
V. Pastukhov
Keyword(s):  
Perturbation Theory ◽  
Ground State ◽  
Low Temperatures ◽  
Bose Gas ◽  
Quenched Disorder ◽  
Interacting Particles ◽  
Dilute Bose Gas ◽  
Infinite Mass ◽  
Non Gaussian ◽  
The Impact

The properties of a dilute Bose gas with the non-Gaussian quenched disorder are analyzed. Being more specific, we have considered a system of bosons immersed in the classical bath consisting of the non-interacting particles with infinite mass. Making use of perturbation theory up to the second order, we have studied the impact of environment on the ground-state thermodynamic and superfluid characteristics of the Bose component.

PATH INTEGRAL DERIVATION OF THE GROUND STATE ENERGY OF THE INTERACTING PARTICLES IN A HARMONIC TRAP

2003 ◽  
Vol 17 (31n32) ◽  
pp. 5983-5989
Author(s):  
KOBCHAI TAYANASANTI ◽  
VIRULH SA-YAKANIT
Keyword(s):  
Density Matrix ◽  
Path Integral ◽  
Ground State Energy ◽  
Ground State ◽  
Path Integration ◽  
State Energy ◽  
Bose Gas ◽  
Pitaevskii Equation ◽  
Interacting Particles ◽  
Analytical Result

We show within the framework of Variational Path Integration that the density matrix and the ground state energy of the trapped Bose gas can be obtained in a simple way and it is in agreement with the result obtained by the variational Gross–Pitaevskii equation. The advantage of this method is the analytical result can be found for various forms of interaction between particles.

scholarly journals GROUND-STATE ENERGY DENSITY OF A DILUTE BOSE GAS IN THE CANONICAL TRANSFORMATION

2007 ◽  
Vol 21 (32) ◽  
pp. 5309-5318
Author(s):  
SANG-HOON KIM ◽  
CHUL KU KIM ◽  
MUKUNDA P. DAS
Keyword(s):  
Energy Density ◽  
Excited States ◽  
Ground State Energy ◽  
Canonical Transformation ◽  
Ground State ◽  
Density Fluctuation ◽  
State Energy ◽  
Bose Gas ◽  
Dilute Bose Gas ◽  
Gas System

The ground-state energy density of an interacting dilute Bose gas system is studied in the canonical transformation scheme. It is shown that the transformation scheme enables us to calculate a higher order correction of order na3 in the particle depletion and ground-state energy density of a dilute Bose gas system, which corresponds to the density fluctuation resulting from the excited states. Considering a two-body interaction only, the coefficient of the na3 term is shown to be 2(π-8/3) for the particle depletion, and 16(π-8/3) for the ground-state energy density.

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