2 papers
cond-mat.quant-gas2026
Efimovian Phonon Production for an Analog Coasting Universe in Bose-Einstein Condensates
Yunfei Xue, Jiabin Wang, Li Chen +2
Efimov effects arise from scale invariance, a fundamental symmetry with universal implications. While spatial Efimov physics has been extensively studied, realizing its temporal co…
cond-mat.quant-gas2025
Dual Phonon Universe in a Spinor Bose Gas
Jiabin Wang, Yunfei Xue, Li Chen +1
We show the possibility of simulating a dual universe in a pseudospin-1/2 Bose-Einstein condensate (BEC), wherein two phononic modes experience distinct curved spacetime metrics. T…