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Diamond-shaped quantum circuit for real-time quantum dynamics in one dimension
Physical Review ResearchIn recent years, quantum computing has evolved as an exciting frontier, with the development of numerous algorithms dedicated to constructing quantum circuits that adeptly represent quantum many-body states.
Shohei Miyakoshi +4 more
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Efficient universal quantum circuits [PDF]
Quantum Information and Computation, 2009 Universal circuits can be viewed as general-purpose simulators for central classes of circuits and can be used to capture the computational power of the circuit class being simulated. We define and construct quantum universal circuits which are efficient and has very little overhead in simulation.
Debajyoti Bera +3 more
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A quantum multiplier based on the quantum Fourier transform algorithm
Dianzi Jishu Yingyong, 2022 Multiplier is one of the basic units in many quantum algorithms. In order to implement the multiplying operations and use as few auxiliary qubits in the quantum circuit as possible, a quantum multiplier based on the quantum Fourier transform is proposed.
Qian Junkai, Zhu Jialiang, Ye Bin
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Inexact Quantum Square Root Circuit for NISQ Devices
IEEE AccessNoisy intermediate-scale quantum (NISQ) computers face significant reliability challenges because they are vulnerable to quantum noise, which severely limits their fidelity in quantum applications.
Sohrab Sajadimanesh +3 more
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Improved circuit implementation of the HHL algorithm and its simulations on QISKIT
Scientific Reports, 2022 In 2019, Yonghae Lee et al. combined the circuit implementation of the Harrow–Hassidim–Lloyd (HHL) algorithm with a classical computer, and designed a hybrid HHL algorithm to reduce experimental errors caused by decoherence and so on.
Meng Zhang +3 more
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A quantum hamiltonian simulation benchmark
npj Quantum Information, 2022 Hamiltonian simulation is one of the most important problems in quantum computation, and quantum singular value transformation (QSVT) is an efficient way to simulate a general class of Hamiltonians.
Yulong Dong, K. Birgitta Whaley, Lin Lin
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Sparse Quantum Codes from Quantum Circuits [PDF]
Proceedings of the forty-seventh annual ACM symposium on Theory of Computing, 2015 We describe a general method for turning quantum circuits into sparse quantum subsystem codes. The idea is to turn each circuit element into a set of low-weight gauge generators that enforce the input-output relations of that circuit element. Using this prescription, we can map an arbitrary stabilizer code into a new subsystem code with the same ...
Dave Bacon +3 more
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Automatic quantum circuit encoding of a given arbitrary quantum state
Physical Review ResearchWe introduce an quantum-classical hybrid algorithm, named automatic quantum circuit encoding (AQCE), that is designed to encode an arbitrary quantum state |Ψ〉 onto an optimal quantum circuit C[over ̂] composed of a finite set of single- and two-qubit ...
Tomonori Shirakawa +2 more
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