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cond-mat.stat-mech2020★ 5 cited
Prethermalization with negative specific heat
Sayak Ray, James R. Anglin, Amichay Vardi
We study non-canonical relaxation in a composite cold atoms system, consisting of subsystems that possess negative microcanonical specific heat. The system exhibits pre-thermalizat…
cond-mat.quant-gas2020★ 11 cited
Phases and collective modes of bosons in a triangular lattice at finite temperature: A cluster mean field study
M. Malakar, S. Ray, S. Sinha +1
Motivated by the realization of Bose-Einstein condensates (BEC) in non-cubic lattices, in this work we study the phases and collective excitation of bosons with nearest neighbor in…