7 papers
Quantum criticality and factorization in a constrained Rydberg spin chain
Yuan Jiang, Wen-Long You, Liangsheng Li +1
We investigate the zero-temperature phase diagram of a one-dimensional constrained quantum spin chain realized in coherently driven Rydberg-atom arrays with competing local Rabi dr…
Tighter thermalization bounds for perturbed quantum many-body scars
Meng-Yun Mao, Zhixiang Sun, Wen-Long You
Quantum many-body scars (QMBS) are exceptional eigenstates that defy thermalization, enabling long-lived coherent dynamics in strongly interacting systems. However, their stability…
Yang-Lee edge singularity and quantum criticality in non-Hermitian PXP model
Wen-Yi Zhang, Meng-Yun Mao, Qing-Min Hu +3
We present a comprehensive theoretical framework for quantum criticality in the non-Hermitian detuned PXP model, and establish the complete phase diagram, which had remained elusiv…
Quantum criticality and emergent orders in the spin-1 bilinear-biquadratic-Kitaev chain
Zhiling Wei, Zhengzhong Du, Xiaodong Cao +2
Higher-spin quantum magnets with competing interactions offer a rich platform for exploring quantum phases that transcend the paradigms of spin-1/2 systems, owing to their enlarged…
Krylov complexity in quantum many-body scars of spin-1 models
Qingmin Hu, Wen-Yi Zhang, Yunguang Han +1
Weak ergodicity breaking, particularly through quantum many-body scars (QMBS), has become a significant focus in many-body physics. Krylov state complexity quantifies the spread of…
Deconfined quantum criticality of frustrated hard-core dipolar bosons
Ya-Nan Wang, Wen-Long You, Wen-Yi Zhang +2
Deconfined quantum critical points (DQCPs) are proposed as unconventional second-order phase transitions beyond the Landau-Ginzburg-Wilson paradigm. The nature and experimental rea…