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quant-ph2022★ 12 cited
Simple and high-precision Hamiltonian simulation by compensating Trotter error with linear combination of unitary operations
Pei Zeng, Jinzhao Sun, Liang Jiang +1
Trotter and linear-combination-of-unitary (LCU) are two popular Hamiltonian simulation methods. We propose Hamiltonian simulation algorithms using LCU to compensate Trotter error,…
quant-ph2022★ 35 cited
Distributed quantum error correction for chip-level catastrophic errors
Qian Xu, Alireza Seif, Haoxiong Yan +5
Quantum error correction holds the key to scaling up quantum computers. Cosmic ray events severely impact the operation of a quantum computer by causing chip-level catastrophic err…
quant-ph2022★ 59 cited
Shadow Distillation: Quantum Error Mitigation with Classical Shadows for Near-Term Quantum Processors
Alireza Seif, Ze-Pei Cian, Sisi Zhou +2
Mitigating errors in quantum information processing devices is especially important in the absence of fault tolerance. An effective method in suppressing state-preparation errors i…