4 papers · 1 filter
A penalty-free quantum algorithm to find energy eigenstates
Nannan Ma, Heng Dai, Jiangbin Gong
Finding eigenstates of a given many-body Hamiltonian is a long-standing challenge due to the perceived computational complexity. Leveraging on the hardware of a quantum computer ac…
Quantum Metrology via Adiabatic Control of Topological Edge States
Xingjian He, Aoqian Shi, Jianjun Liu +1
Criticality-based quantum sensing exploits hypersensitive response to system parameters near phase transition points. This work uncovers two metrological advantages offered by topo…
Non-Hermitian entanglement dip from scaling-induced exceptional criticality
Sirui Liu, Hui Jiang, Wen-Tan Xue +4
It is well established that the entanglement entropy of a critical system generally scales logarithmically with system size. Yet, in this work, we report a new class of non-Hermiti…
Aperiodic Dissipation as a Mechanism for Steady-State Localization
Shilpi Roy, Jiangbin Gong
Dissipation is traditionally regarded as a disruptive factor in quantum systems because it often leads to decoherence and delocalization. However, recent insights into engineered d…