activity
20222026
most citedDynamical purification and the emergence of quantum state designs from the projected ensemble

83 citations · 258 across the 17 of their papers we have counts for

collaborators

19 papers

quant-ph2026

Deep thermalization and Hilbert space ergodicity

Daniel K. Mark, Manuel Endres, Matteo Ippoliti +2

Recent advances in quantum simulation have enabled the discovery of novel forms of universality in quantum many-body dynamics. In this Review, we discuss deep thermalization and Hi…

quant-ph2026

Emergent universality in Kraus maps of quantum chaotic many-body dynamics

Qi Camm Huang, Wai-Keong Mok, Tobias Haug +1

Recent studies of "deep thermalization" have revealed universal physics in quantum many-body dynamics beyond equilibration towards Gibbs states: maximally random quantum state ense…

quant-ph2026

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-…

quant-ph2026

Nature is stingy: Universality of Scrooge ensembles in quantum many-body systems

Wai-Keong Mok, Tobias Haug, Wen Wei Ho +1

Recent advances in quantum simulators allow direct experimental access to ensembles of pure states generated by measuring part of an isolated quantum many-body system. These projec…

quant-ph2025

Scalable tests of quantum contextuality from stabilizer-testing nonlocal games

Wanbing Zhao, H. W. Shawn Liew, Wen Wei Ho +2

Soon after the dawn of quantum error correction, DiVincenzo and Peres observed that stabilizer codewords could give rise to simple proofs of quantumness via contextuality. This dis…

quant-ph2025

Temporal entanglement transition in chaotic quantum many-body dynamics

Ilya Vilkoviskiy, Michael Sonner, Qi Camm Huang +3

Temporal entanglement (TE) of an influence matrix (IM) has been proposed as a measure of complexity of simulating dynamics of local observables in a many-body system. Foligno et al…

quant-ph2025★ 1 cited

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…

quant-ph2025

Observation of hierarchy of Hilbert space ergodicities in the quantum dynamics of a single spin

Wenquan Liu, Zouwei Pan, Yue Fu +4

Ergodicity, the property that all allowed configurations are explored over time, plays a pivotal role in explaining the equilibrium behavior of classical dynamical systems. Yet, su…

quant-ph2025★ 6 cited

Mixed state deep thermalization

Xie-Hang Yu, Wen Wei Ho, Pavel Kos

We introduce the notion of the mixed state projected ensemble (MSPE), a collection of mixed states describing a local region of a quantum many-body system, conditioned upon measure…

quant-ph2025

Geometric quantum drives and topological dynamical responses: hyperbolically-driven quantum systems and beyond

Jihong Wu, Chuan Liu, Daniel Bulmash +1

We introduce a geometrical framework to construct a large class of time-dependent quantum systems, in which the position of a classical particle moving autonomously on a smooth con…

quant-ph2025★ 4 cited

Critically Slow Hilbert-Space Ergodicity in Quantum Morphic Drives

Saúl Pilatowsky-Cameo, Soonwon Choi, Wen Wei Ho

The maximum entropy principle is foundational for statistical analyses of complex dynamics. This principle has been challenged by the findings of a previous work [arXiv:1701.07596]…

quant-ph2024★ 10 cited

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…

quant-ph2024★ 11 cited

Hilbert-Space Ergodicity in Driven Quantum Systems: Obstructions and Designs

Saúl Pilatowsky-Cameo, Iman Marvian, Soonwon Choi +1

Despite its long history, a canonical formulation of quantum ergodicity that applies to general classes of quantum dynamics, including driven systems, has not been fully establishe…

quant-ph2023★ 9 cited

Solvable entanglement dynamics in quantum circuits with generalized space-time duality

Chuan Liu, Wen Wei Ho

We study the non-equilibrium dynamics of kicked Ising models in dimensions which have interactions alternating between odd and even bonds in time. These models can be underst…

quant-ph2023★ 32 cited

Complete Hilbert-Space Ergodicity in Quantum Dynamics of Generalized Fibonacci Drives

Saúl Pilatowsky-Cameo, Ceren B. Dag, Wen Wei Ho +1

Ergodicity of quantum dynamics is often defined through statistical properties of energy eigenstates, as exemplified by Berry's conjecture in single-particle quantum chaos and the…

quant-ph2023★ 6 cited

Nonlocality of Deep Thermalization

Harshank Shrotriya, Wen Wei Ho

We study the role of global system topology in governing deep thermalization, the relaxation of a local subsystem towards a maximally-entropic, uniform distribution of post-measure…

quant-ph2022★ 26 cited

Universal measurement-based quantum computation in a one-dimensional architecture enabled by dual-unitary circuits

David T. Stephen, Wen Wei Ho, Tzu-Chieh Wei +2

A powerful tool emerging from the study of many-body quantum dynamics is that of dual-unitary circuits, which are unitary even when read `sideways', i.e., along the spatial directi…

quant-ph2022★ 70 cited

Solvable model of deep thermalization with distinct design times

Matteo Ippoliti, Wen Wei Ho

We study the emergence over time of a universal, uniform distribution of quantum states supported on a finite subsystem, induced by projectively measuring the rest of the system. D…

quant-ph2022★ 83 cited

Dynamical purification and the emergence of quantum state designs from the projected ensemble

Matteo Ippoliti, Wen Wei Ho

Quantum thermalization in a many-body system is defined by the approach of local subsystems towards a universal form, describable as an ensemble of quantum states wherein observabl…