Characterization of Feshbach resonances in 6Li7Li^6\mathrm{Li}{-}^7\mathrm{Li} using improved interaction potentials

This paper characterizes Feshbach resonances in all lithium isotopologues by refining interaction potentials with spectroscopic data and threshold measurements, revealing that the heteronuclear 6Li7Li^{6}\mathrm{Li}{-}^{7}\mathrm{Li} system exhibits narrow, triplet-dominated resonances distinct from its homonuclear counterparts, thereby establishing a foundation for creating ultracold Li2\mathrm{Li}_2 molecules across all isotopologues.

Jing-Chen Zhang, Paul Julienne, Yu Liu2026-03-04🔬 physics.atom-ph

Spectral form factor and power spectrum for trapped interacting rotating bosons: Crossover from integrability to quantum chaos

This study utilizes exact diagonalization of spectral form factors and power spectra to demonstrate how trapped interacting rotating bosons transition from integrable or pseudo-integrable behavior in moderate interaction regimes to strong quantum chaos consistent with the Gaussian orthogonal ensemble in strong interaction regimes, driven by the interplay between interaction strength and rotational angular momentum.

Mohd Talib, M. A. H. Ahsan2026-03-04⚛️ quant-ph

Finite temperature phase diagram of the extended Bose-Hubbard model in the presence of disorder

This paper presents a mean-field study of the finite-temperature phase diagram of the disordered Extended Bose-Hubbard model, revealing how thermal fluctuations compete with quantum effects to melt Mott insulator and charge-density-wave phases into normal fluids or Bose glasses, with disorder further suppressing the stability of these insulating states.

Madhumita Kabiraj, Raka Dasgupta2026-03-04⚛️ quant-ph