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5 papers · 2 filters
Universal KPZ scaling in noisy hybrid quantum circuits
Shuo Liu, Ming-Rui Li, Shi-Xin Zhang +2
Measurement-induced phase transitions (MIPT) have attracted increasing attention due to the rich phenomenology of entanglement structures and their relation with quantum informatio…
A Quantum Algorithm Framework for Discrete Probability Distributions with Applications to Rényi Entropy Estimation
Xinzhao Wang, Shengyu Zhang, Tongyang Li
Estimating statistical properties is fundamental in statistics and computer science. In this paper, we propose a unified quantum algorithm framework for estimating properties of di…
TensorCircuit: a Quantum Software Framework for the NISQ Era
Shi-Xin Zhang, Jonathan Allcock, Zhou-Quan Wan +13
TensorCircuit is an open source quantum circuit simulator based on tensor network contraction, designed for speed, flexibility and code efficiency. Written purely in Python, and bu…
Suppressing ZZ Crosstalk of Quantum Computers through Pulse and Scheduling Co-Optimization
Lei Xie, Jidong Zhai, Zhenxing Zhang +3
Noise is a significant obstacle to quantum computing, and crosstalk is one of the most destructive types of noise affecting superconducting qubits. Previous approaches to supp…
Optimal (controlled) quantum state preparation and improved unitary synthesis by quantum circuits with any number of ancillary qubits
Pei Yuan, Shengyu Zhang
As a cornerstone for many quantum linear algebraic and quantum machine learning algorithms, controlled quantum state preparation (CQSP) aims to provide the transformation of $|i\ra…