53 citations · 328 across the 20 of their papers we have counts for
7 papers · 1 filter
Noise-Assisted Quantum Autoencoder
Chenfeng Cao, Xin Wang
Quantum autoencoder is an efficient variational quantum algorithm for quantum data compression. However, previous quantum autoencoders fail to compress and recover high-rank mixed…
Phase Analysis on the Error Scaling of Entangled Qubits in a 53-Qubit System
Wei-Jia Huang, Wei-Chen Chien, Chien-Hung Cho +6
We have studied carefully the behaviors of entangled qubits on the IBM Rochester with various connectivities and under a "noisy" environment. A phase trajectory analysis based on o…
Simulating noisy variational quantum eigensolver with local noise models
Jinfeng Zeng, Zipeng Wu, Chenfeng Cao +4
Variational quantum eigensolver (VQE) is promising to show quantum advantage on near-term noisy-intermediate-scale quantum (NISQ) computers. One central problem of VQE is the effec…
A variational quantum algorithm for Hamiltonian diagonalization
Jinfeng Zeng, Chenfeng Cao, Chao Zhang +2
Hamiltonian diagonalization is at the heart of understanding physical properties and practical applications of quantum systems. It is highly desired to design quantum algorithms th…
Speedup of the Quantum Adiabatic Algorithm using Delocalization Catalysis
Chenfeng Cao, Jian Xue, Nic Shannon +1
We propose a method to speed up the quantum adiabatic algorithm using catalysis by many-body delocalization. This is applied to random-field antiferromagnetic Ising spin models. Th…
Supervised learning in Hamiltonian reconstruction from local measurements on eigenstates
Chenfeng Cao, Shi-Yao Hou, Ningping Cao +1
Reconstructing a system Hamiltonian through measurements on its eigenstates is an important inverse problem in quantum physics. Recently, it was shown that generic many-body local…
Simulating Noisy Quantum Circuits with Matrix Product Density Operators
Song Cheng, Chenfeng Cao, Chao Zhang +4
Simulating quantum circuits with classical computers requires resources growing exponentially in terms of system size. Real quantum computer with noise, however, may be simulated p…