2021
DOI: 10.48550/arxiv.2104.11894
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Critical behavior of Tan's contact for bosonic systems with a fixed chemical potential

Abdulla Rakhimov,
Tolib Abdurakhmonov,
Bilal Tanatar

Abstract: The temperature dependence of Tan's contact parameter C and its derivatives for spin gapped quantum magnets are investigated. We use the paradigm of Bose-Einstein condensation (BEC) to describe the low temperature properties of quasiparticles in the system known as triplons. Since the number of particles and the condensate fraction are not fixed we use the µV T ensemble to calculate the thermodynamic quantities. The interactions are treated at the Hartree-Fock-Bogoliubov approximation level. We obtained the te… Show more

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“…Another important issue of immense experimental relevance is the impact of the gas temperature. Indeed, it has been experimentally and theoretically evinced that temperature effects play a crucial role on few-body correlation properties of bosonic and twocomponent fermionic thermal gases [44,[88][89][90][91][92]. For this reason, in the following, the temperature dependence of the two-and three-body contacts with respect to the involved scattering lengths is investigated exemplarily for BBX systems.…”
Section: Impact Of Thermal Effects On the Correlationsmentioning
confidence: 99%
“…Another important issue of immense experimental relevance is the impact of the gas temperature. Indeed, it has been experimentally and theoretically evinced that temperature effects play a crucial role on few-body correlation properties of bosonic and twocomponent fermionic thermal gases [44,[88][89][90][91][92]. For this reason, in the following, the temperature dependence of the two-and three-body contacts with respect to the involved scattering lengths is investigated exemplarily for BBX systems.…”
Section: Impact Of Thermal Effects On the Correlationsmentioning
confidence: 99%