From the 1 of 15 linked papers with an AI index.
15 papers
Thermal Suppression of Dynamical Quantum Phase Transitions in Finite-Dimensional Systems A Quasi-Hermitian Framework
Jia-Chen Tang, Xu-Yang Hou, Ming-Zhang Wang +1
The paper analyzes how thermal occupation suppresses dynamical quantum phase transitions in finite-dimensional quantum systems after a sudden quench, using a pseudo‑Hermitian (quas…
Wilczek-Zee Realization of Uhlmann Parallel Transport
Yu-Huan Huang, Xu-Yang Hou, Jia-Chen Tang +1
The Uhlmann phase extends geometric phases to mixed quantum states via a parallel-transport condition on purification amplitudes, yet its direct implementation under standard Hamil…
Electrical-Circuit Simulation of the Uhlmann Phase
Yu-Huan Huang, Yu Wang, Jia-Chen Tang +2
The Uhlmann phase extends the concept of geometric phases to mixed quantum states through a parallel-transport condition on purification amplitudes, but its experimental realizatio…
Defect Holonomy Near Rank-Deficient Mixed States
Yu-Huan Huang, Xu-Yang Hou, Hao Guo
We investigate the geometry of mixed quantum states near rank-changing points, showing that these singularities function as effective geometric defects. The Uhlmann connection is w…
Torsion-induced gauge structure in curved quantum waveguides
Xu-Yang Hou, Xianlong Gao, Hao Guo
We investigate the quantum dynamics of a particle confined to a space curve within the thin-layer quantization framework. For a nondegenerate scalar transverse mode, torsion does n…
Geometry near rank-changing points on the mixed-state manifold: Bures metric, conical singularities, and Lindblad dynamics
Yu-Huan Huang, Xu-Yang Hou, Hao Guo +1
We elucidate the Bures metric in quantum state space near a rank-changing point of the density matrix and show contrasting behavior for two-level () systems versus higher-leve…