scholarly journals Bose-Einstein condensation of triplons close to the quantum critical point in the quasi-one-dimensional spin- 12 antiferromagnet NaVOPO4

2019 ◽  
Vol 100 (14) ◽  
Author(s):  
Prashanta K. Mukharjee ◽  
K. M. Ranjith ◽  
B. Koo ◽  
J. Sichelschmidt ◽  
M. Baenitz ◽  
...  
Keyword(s):  
Critical Point ◽  
Quantum Critical Point ◽  
Einstein Condensation ◽  
One Dimensional ◽  
Bose Einstein Condensation ◽  
Quantum Critical ◽  
Bose Einstein

scholarly journals Characteristic Bose-Einstein condensation scaling close to a quantum critical point inBaCuSi2O6

2005 ◽  
Vol 72 (10) ◽  
Author(s):  
S. E. Sebastian ◽  
P. A. Sharma ◽  
M. Jaime ◽  
N. Harrison ◽  
V. Correa ◽  
...  
Keyword(s):  
Critical Point ◽  
Quantum Critical Point ◽  
Einstein Condensation ◽  
Bose Einstein Condensation ◽  
Quantum Critical ◽  
Bose Einstein

scholarly journals Emergent symmetry and conserved current at a one-dimensional incarnation of deconfined quantum critical point

2019 ◽  
Vol 100 (12) ◽  
Author(s):  
Rui-Zhen Huang ◽  
Da-Chuan Lu ◽  
Yi-Zhuang You ◽  
Zi Yang Meng ◽  
Tao Xiang
Keyword(s):  
Critical Point ◽  
Quantum Critical Point ◽  
One Dimensional ◽  
Conserved Current ◽  
Quantum Critical

scholarly journals Realistic quantum critical point in one-dimensional two-impurity models

2017 ◽  
Vol 96 (4) ◽  
Author(s):  
Benedikt Lechtenberg ◽  
Fabian Eickhoff ◽  
Frithjof B. Anders
Keyword(s):  
Critical Point ◽  
Quantum Critical Point ◽  
One Dimensional ◽  
Quantum Critical ◽  
Impurity Models

On Bose-Einstein condensation in one-dimensional lattices of delta functions

2020 ◽  
Vol 35 (03) ◽  
pp. 2040005 ◽  
Author(s):  
M. Bordag
Keyword(s):  
Dimensional Case ◽  
Einstein Condensation ◽  
Periodic Lattice ◽  
Spectral Functions ◽  
One Dimensional ◽  
Bose Einstein Condensation ◽  
Free Case ◽  
Delta Functions ◽  
The One ◽  
Bose Einstein

We investigate Bose-Einstein condensation of a gas of non-interacting Bose particles moving in the background of a periodic lattice of delta functions. In the one-dimensional case, where one has no condensation in the free case, we showed that this property persist also in the presence of the lattice. In addition we formulated some conditions on the spectral functions which would allow for condensation.

scholarly journals Particle number fluctuations in a non-ideal pion gas

2018 ◽  
Vol 182 ◽  
pp. 02066
Author(s):  
Evgeni E. Kolomeitsev ◽  
Maxim E. Borisov ◽  
Dmitry N. Voskresensky
Keyword(s):  
Critical Point ◽  
Particle Number ◽  
Chemical Potential ◽  
Pion Mass ◽  
Thermodynamic Characteristics ◽  
Ideal Gas ◽  
Fixed Number ◽  
Einstein Condensation ◽  
Bose Einstein Condensation ◽  
Bose Einstein

We consider a non-ideal hot pion gas with the dynamically fixed number of particles in the model with the λφ4 interaction. The effective Lagrangian for the description of such a system is obtained by dropping the terms responsible for the change of the total particle number. Within the self-consistent Hartree approximation, we compute the effective pion mass, thermodynamic characteristics of the system and identify a critical point of the induced Bose-Einstein condensation when the pion chemical potential reaches the value of the effective pion mass. The normalized variance, skewness, and kurtosis of the particle number distributions are calculated. We demonstrate that all these characteristics remain finite at the critical point of the Bose-Einstein condensation. This is due to the non-perturbative account of the interaction and is in contrast to the ideal-gas case.

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