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cond-mat.quant-gas2026
Pair size versus coherence length and quantum geometry in the spin-orbit coupled BCS-BEC crossover
R. N. Kalkan, M. Iskin
We investigate the interplay between pairing correlations and quantum geometry in the spin-orbit-coupled BCS-BEC crossover. Working in the helicity basis, we derive the exact pair-…
cond-mat.quant-gas2026
Experimental signatures of bosonic pairing in a two-component Bose gas
Omar Almonajed, M. Iskin, M. Ö. Oktel
Two-component bosonic droplets are commonly described within Bogoliubov theory, where beyond-mean-field quantum fluctuations stabilize the system against mean-field collapse. In th…
cond-mat.quant-gas2025★ 1 cited
Quenched disorder and the BCS-BEC crossover in the Hubbard model
M. Iskin
We study the impact of weak quenched disorder on the BCS-BEC crossover in the Hubbard model within a functional-integral approach. By deriving the thermodynamic potential up to sec…