41 citations · 56 across the 15 of their papers we have counts for
17 papers
Exploring Quantum Phase Transitions Beyond Landau Theory on a Quantum Processor
Ruizhe Shen, Yin Zhong, Ching Hua Lee
Direct continuous quantum phase transitions between phases that break distinct symmetries challenge the conventional Landau-Ginzburg-Wilson paradigm and provide a framework for dec…
Realization of decoherence-induced averaged symmetry-protected topological phases on quantum processors
Ruizhe Shen, Xue-Jia Yu, Ching Hua Lee
Symmetry-protected topological (SPT) phases are conventionally formulated for pure states protected by exact symmetries. In open quantum systems, however, decoherence generates mix…
Practical Error Suppression and Mitigation for Reliable Quantum Computing
Han-Ze Li, Mengjie Yang, Xianquan Yan +3
Quantum computing is entering a transitional regime between noisy intermediate-scale quantum (NISQ) processing and early fault-tolerant quantum computation (FTQC), in which increas…
Resolving topological order crossovers on NISQ hardware
Ruizhe Shen, Yin Zhong, Ching Hua Lee
Topological phases of matter provide a promising route toward robust quantum information processing, but on present-day noisy intermediate-scale quantum devices the experimentally…
Simulating Condensed Matter Physics on Quantum Hardware
Ruizhe Shen, Tianqi Chen, Tommy Tai +3
Quantum hardware platforms are getting increasingly sophisticated in their ability to simulate condensed matter, including but not limited to strongly-correlated, topological, and…
Observation of Non-Markovian Evolution of Tripartite Quantum Steering
Yan Wang, Shao-qi Lin, Rui-qi Shen +6
The memory effects in open quantum systems can induce information backflow and revive quantum correlations, thereby providing a powerful way to protect and recover useful quantum r…
Observation of feedback-directed quantum dynamics in large-scale quantum processors
Ruizhe Shen, Ching Hua Lee
Programmable quantum hardware provides an emerging platform for exploring and controlling non-unitary quantum dynamics through measurement-based operations. In this work, we introd…
Digital Simulation of Non-Hermitian Knotted Bands on Quantum Hardware
Truman Yu Ng, Yuzhu Wang, Wei Jie Chan +3
Knots and links represent a fundamental motif of non-local connectivity that permeates the physical sciences from string theory to protein folds. While spectral braiding has been e…
Benchmarking Quantum Solvers in Noisy Digital Simulations for Financial Portfolio Optimization
Ruizhe Shen, Zichang Hao, Ching Hua Lee
In this work, we benchmark two prominent quantum algorithms: Quantum Imaginary-Time Evolution (QITE) and the Quantum Approximate Optimization Algorithm (QAOA) for obtaining the gro…
Circuit structure-preserving error mitigation for High-Fidelity Quantum Simulations
Ruizhe Shen, Tianqi Chen, Ching Hua Lee
Developing methods to accurately characterize and mitigate the impact of noise is crucial for enhancing the fidelity of quantum simulations on Noisy Intermediate-Scale Quantum (NIS…
Robust Simulations of Many-Body Symmetry-Protected Topological Phase Transitions on a Quantum Processor
Ruizhe Shen, Tianqi Chen, Bo Yang +2
Topology and symmetry play critical roles in characterizing quantum phases of matter. Recent advancements have unveiled symmetry-protected topological (SPT) phases in many-body sys…
Nonlinear Hall effects with an exceptional ring
Fang Qin, Ruizhe Shen, Ching Hua Lee
In non-Hermitian band structures, exceptional points generically form gapless lines or loops that give rise to extensively many defective eigenstates. In this work, we investigate…
Non-Hermitian Skin Effect Along Hyperbolic Geodesics
Ruizhe Shen, Wei Jie Chan, Ching Hua Lee
Recently, it has been revealed that a variety of novel phenomena emerge in hyperbolic spaces, while non-Hermitian physics has significantly enriched the landscape of condensed matt…
Direct Probe of Topology and Geometry of Quantum States on IBM Q
Tianqi Chen, Hai-Tao Ding, Ruizhe Shen +2
The concepts of topology and geometry are of critical importance in exploring exotic phases of quantum matter. Though they have been investigated on various experimental platforms,…
Enhanced many-body quantum scars from the non-Hermitian Fock skin effect
Ruizhe Shen, Fang Qin, Jean-Yves Desaules +2
In contrast with extended Bloch waves, a single particle can become spatially localized due to the so-called skin effect originating from non-Hermitian pumping. Here we show that i…
Observation of the non-Hermitian skin effect and Fermi skin on a digital quantum computer
Ruizhe Shen, Tianqi Chen, Bo Yang +1
Non-Hermitian physics has attracted considerable attention in recent years, particularly the non-Hermitian skin effect (NHSE) for its extreme sensitivity and non-locality. While th…
A Robust Large-Period Discrete Time Crystal and its Signature in a Digital Quantum Computer
Tianqi Chen, Ruizhe Shen, Ching Hua Lee +2
Discrete time crystals (DTCs) are novel out-of-equilibrium quantum states of matter which break time translational symmetry. DTCs have been extensively realized in experiments, par…