67 citations · 130 across the 18 of their papers we have counts for
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Joint Mitigation of Algorithmic and Physical Errors in Noisy Hamiltonian Simulation
Shuo Zhou, Xinzhao Wang, Ruiqi Zhang +4
Product-formula Hamiltonian simulation is naturally suited to near-term quantum processors, but its accuracy is set by two competing errors: finite-step Trotter bias and physical h…
Streaming the partial-transpose moment hierarchy with order-independent quantum memory
Junxiang Huang, Xiaoyang Wang, Xiao Yuan +1
Partial transposition reveals mixed-state entanglement through the spectrum of , but this operator is not generally a physical state. Its power moments are accessible…
A unified framework for efficient quantum simulation of nonlinear spectroscopy
Long Xiong, Xiaoyang Wang, Xiaoxia Cai +1
Nonlinear spectroscopy is a cornerstone of quantum science, providing unique access to multi-point correlations, quantum coherence, and couplings that are invisible to linear metho…
Phase transitions in parametrized quantum circuits
Xiaoyang Wang, Han Xu, Lukas Broers +2
Phase transitions are among the most intriguing phenomena in physical systems, yet their behavior near criticality remain challenging to study using classical algorithms. Parameter…
Learning Quantum Operator Dynamics from Short-Time Data
Jinyang Li, Satoshi Iso, Shunji Matsuura +2
Real-time dynamics of quantum observables provide direct access to excitation spectra and correlation functions in quantum many-body systems, but currently available quantum device…
Lindbladian Simulation with Commutator Bounds
Xinzhao Wang, Shuo Zhou, Xiaoyang Wang +3
Trotter decomposition provides a simple approach to simulating open quantum systems by decomposing the Lindbladian into a sum of individual terms. While it is established that Trot…
Exploring Noisy Quantum Thermodynamical Processes via the Depolarizing-Channel Approximation
Jian Li, Xiaoyang Wang, Marcus Huber +2
Noise and errors are unavoidable in any realistic quantum process, including processes designed to reduce noise and errors in the first place. In particular, quantum thermodynamica…
Computing n-time correlation functions without ancilla qubits
Xiaoyang Wang, Long Xiong, Xiaoxia Cai +1
The -time correlation function is pivotal for establishing connections between theoretical predictions and experimental observations of a quantum system. Conventional methods fo…
Imaginary Hamiltonian variational ansatz for combinatorial optimization problems
Xiaoyang Wang, Yahui Chai, Xu Feng +3
Obtaining exact solutions to combinatorial optimization problems using classical computing is computationally expensive. The current tenet in the field is that quantum computers ca…
Symmetry enhanced variational quantum imaginary time evolution
Xiaoyang Wang, Yahui Chai, Maria Demidik +3
The variational quantum imaginary time evolution (VarQITE) algorithm is a near-term method to prepare the ground state and Gibbs state of Hamiltonians. Finding an appropriate param…
Leakage Benchmarking for Universal Gate Sets
Bujiao Wu, Xiaoyang Wang, Xiao Yuan +2
Errors are common issues in quantum computing platforms, among which leakage is one of the most challenging to address. This is because leakage, i.e., the loss of information store…
Critical behavior of Ising model by preparing thermal state on quantum computer
Xiaoyang Wang, Xu Feng, Tobias Hartung +2
We simulate the critical behavior of the Ising model utilizing a thermal state prepared using quantum computing techniques. The preparation of the thermal state is based on the var…
Simulating the Spread of Infection in Networks with Quantum Computers
Xiaoyang Wang, Yinchenguang Lyu, Changyu Yao +1
We propose to use quantum computers to simulate infection spreading in networks. We first show the analogy between the infection distribution and spin-lattice configurations with I…
Model-Independent Error Mitigation in Parametric Quantum Circuits and Depolarizing Projection of Quantum Noise
Xiaoyang Wang, Xu Feng, Lena Funcke +5
Finding ground states and low-lying excitations of a given Hamiltonian is one of the most important problems in many fields of physics. As a novel approach, quantum computing on No…
Investigating the variance increase of readout error mitigation through classical bit-flip correction on IBM and Rigetti quantum computers
Constantia Alexandrou, Lena Funcke, Tobias Hartung +6
Readout errors are among the most dominant errors on current noisy intermediate-scale quantum devices. Recently, an efficient and scaleable method for mitigating such errors has be…
Using classical bit-flip correction for error mitigation including 2-qubit correlations
Constantia Alexandrou, Lena Funcke, Tobias Hartung +5
We present an error mitigation scheme which corrects readout errors on Noisy Intermediate-Scale Quantum (NISQ) computers [1,2]. After a short review of applying the method to one q…
Towards Quantum Simulations in Particle Physics and Beyond on Noisy Intermediate-Scale Quantum Devices
Lena Funcke, Tobias Hartung, Karl Jansen +4
We review two algorithmic advances that bring us closer to reliable quantum simulations of model systems in high energy physics and beyond on noisy intermediate-scale quantum (NISQ…
Measurement Error Mitigation in Quantum Computers Through Classical Bit-Flip Correction
Lena Funcke, Tobias Hartung, Karl Jansen +3
We develop a classical bit-flip correction method to mitigate measurement errors on quantum computers. This method can be applied to any operator, any number of qubits, and any rea…