10 citations · 11 across the 7 of their papers we have counts for
9 papers
Memory dimension detection in open quantum dynamics via pseudo-control
Chang Liu, Alexander Yosifov, Ximing Wang +2
Characterising open quantum dynamics requires identifying the environmental degrees of freedom that shape the system's evolution. The memory dimension, defined as the size of the s…
Quantum resource localizability transitions in deep thermalization
Xiaozhou Feng, Chang Liu, Zihan Cheng +2
We investigate how quantum resource constraints affect deep thermalization, the emergence of universal local wavefunction distributions from partial measurements of a quantum many-…
Coherence-induced deep thermalization transition in random permutation quantum dynamics
Chang Liu, Matteo Ippoliti, Wen Wei Ho
We report a phase transition in the projected ensemble - the collection of post-measurement wavefunctions of a local subsystem obtained by measuring its complement. The transition…
Observation of High-Order Quantum Pancharatnam-Berry Phase with Structured Photons
Shuang-Yin Huang, He Jiang, Zhi-Cheng Ren +6
When a quantum system evolves so that it returns to its initial state, it will acquire a geometric phase acting as a memory of the transformation of a physical system, which has be…
Solving excited states for long-range interacting trapped ions with neural networks
Yixuan Ma, Chang Liu, Weikang Li +4
The computation of excited states in strongly interacting quantum many-body systems is of fundamental importance. Yet, it is notoriously challenging due to the exponential scaling…
Quantum teleportation between simulated binary black holes
Aiden Daniel, Tanmay Bhore, Jiannis K. Pachos +2
The quantum description of a black hole predicts that quantum information hidden behind the event horizon can be teleported outside almost instantaneously. In this work, we demonst…
A Verbose Note on Density Functional Theory
Chang Liu
This note is intended for expanding the details on the derivation and properties of density functional theory, in hope to make them more systematic, better motivated, and step-by-s…
Generalized Loschmidt echo and information scrambling in open systems
Yi-Neng Zhou, Chang Liu
Quantum information scrambling, typically explored in closed quantum systems, describes the spread of initially localized information throughout a system and can be quantified by m…
Deep thermalization in Gaussian continuous-variable quantum systems
Chang Liu, Qi Camm Huang, Wen Wei Ho
We uncover emergent universality arising in the equilibration dynamics of multimode continuous-variable systems. Specifically, we study the ensemble of pure states supported on a s…