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22 papers · 2 filters
Discrete time crystals enhanced by Stark potentials in Rydberg atom arrays
Jian-Jia Wang, Ling-Zhi Tang, Yan-Xiong Du +1
Discrete time crystals (DTCs) are non-equilibrium phases in periodically driven systems that exhibit spontaneous breaking of discrete time-translation symmetry. The stabilization o…
Discrete time crystals enabled by Floquet strong Hilbert space fragmentation
Ling-Zhi Tang, Xiao Li, Z. D. Wang +1
Discrete time crystals (DTCs) are non-equilibrium phases of matter that break the discrete time-translation symmetry and is characterized by a robust subharmonic response in period…
Recent Advances on Nonadiabatic Geometric Quantum Computation
Zheng-Yuan Xue, Cheng-Yun Ding
The geometric phase stands as a foundational concept in quantum physics, revealing deep connections between geometric structures and quantum dynamical evolution. Unlike dynamical p…
Survival of Hermitian Criticality in the Non-Hermitian Framework
Fei Wang, Guoying Liang, Zecheng Zhao +3
In this work, we investigate many-body phase transitions in a one-dimensional anisotropic XY model subject to a complex-valued transverse field. Within the biorthogonal framework,…
Robust iSWAP gates for semiconductor spin qubits with local driving
Qi-Pei Liu, Zheng-Yuan Xue
Scalable quantum computation demands high-fidelity two-qubit gates. However, decoherence and control errors are inevitable, which can decrease the quality of implemented quantum op…
Composite nonadiabatic geometric quantum gates with optimization on superconducting circuits
Cheng-Yun Ding, Wan-Fang Liu, Li-Hua Zhang +2
Due to its fast and robust characteristics, nonadiabatic geometric quantum computation with various optimized techniques has received much attention. However, these strategies eith…