Papers
Live trends in quantum computing research, updated daily from arXiv.
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27,749
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Research Volume
13,046 papers in 12 months (-2% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Exploring the Limitations of Hybrid Adiabatic Quantum Computing for Emission Tomography Reconstruction
M. Nau, A. Vija, W. Gohn +2 more·Dec 2, 2022
Our study explores the feasibility of quantum computing in emission tomography reconstruction, addressing a noisy ill-conditioned inverse problem. In current clinical practice, this is typically solved by iterative methods minimizing a L2 norm. After...
Quantum circuit fidelity estimation using machine learning
Avi Vadali, Rutuja Kshirsagar, P. Shyamsundar +1 more·Dec 1, 2022
The computational power of real-world quantum computers is limited by errors. When using quantum computers to perform algorithms which cannot be efficiently simulated classically, it is important to quantify the accuracy with which the computation ha...
Fault Models in Superconducting quantum circuits
Qifan Huang, Boxi Li, Minbo Gao +1 more·Dec 1, 2022
Fault models are indispensable for many EDA tasks, so as for design and implementation of quantum hardware. In this article, we propose a fault model for superconducting quantum systems. Our fault model reflects the real fault behavior in control sig...
Approximation Algorithm for Noisy Quantum Circuit Simulation
Mingyu Huang, J. Guan, Wang Fang +1 more·Nov 30, 2022
Simulating noisy quantum circuits is vital in de-signing and verifying quantum algorithms in the current NISQ (Noisy Intermediate-Scale Quantum) era, where quantum noise is unavoidable. However, it is much more inefficient than the classical counterp...
Correcting Coherent Errors by Random Operation on Actual Quantum Hardware
Gabriele Cenedese, G. Benenti, M. Bondani·Nov 29, 2022
Characterizing and mitigating errors in current noisy intermediate-scale devices is important to improve the performance of the next generation of quantum hardware. To investigate the importance of the different noise mechanisms affecting quantum com...
Quantum Dot-Based Frequency Multiplier
G. Oakes, L. Peri, L. Cochrane +8 more·Nov 25, 2022
Silicon offers the enticing opportunity to integrate hybrid quantum-classical computing systems on a single platform. For qubit control and readout, high-frequency signals are required. Therefore, devices that can facilitate its generation are needed...
Performance Study of Variational Quantum Algorithms for Solving the Poisson Equation on a Quantum Computer
Mazen Ali, M. Kabel·Nov 25, 2022
Recent advances in quantum computing and their increased availability has led to a growing interest in possible applications. Among those is the solution of partial differential equations (PDEs) for, e.g., material or flow simulation. Currently, the ...
SnCQA: A hardware-efficient equivariant quantum convolutional circuit architecture
Han Zheng, Gokul Subramanian Ravi, Hanrui Wang +3 more·Nov 23, 2022
We propose SnCQA, a set of hardware-efficient variational circuits of equivariant quantum convolutional circuits respective to permutation symmetries and spatial lattice symmetries with the number of qubits n. By exploiting permutation symmetries of ...
Improved Tomographic Estimates by Specialized Neural Networks
M. Guarneri, I. Gianani, M. Barbieri +1 more·Nov 21, 2022
Characterization of quantum objects, being states, processes, or measurements, complemented by previous knowledge about them is a valuable approach, especially as it leads to routine procedures for real‐life components. To this end, machine learning ...
Noise-Resilient Quantum Power Flow
Fei Feng, Yifan Zhou, Peng Zhang·Nov 19, 2022
Quantum power flow (QPF) provides inspiring directions for tackling power flow's computational burdens leveraging quantum computing. However, existing QPF methods are mainly based on noise-sensitive quantum algorithms, whose practical utilization is ...
Acceptor-based qubit in silicon with tunable strain
Shihang Zhang, Yu He, Peihao Huang·Nov 18, 2022
Long coherence time and compatibility with semiconductor fabrication make spin qubits in silicon an attractive platform for quantum computing. In recent years, hole spin qubits are being developed as they have the advantages of weak coupling to nucle...
Efficient quantum implementation of 2+1 U(1) lattice gauge theories with Gauss law constraints
Christopher Kane, D. Grabowska, B. Nachman +1 more·Nov 18, 2022
The study of real-time evolution of lattice quantum field theories using classical computers is known to scale exponentially with the number of lattice sites. Due to a fundamentally different computational strategy, quantum computers hold the promise o...
Beating the break-even point with a discrete-variable-encoded logical qubit
Zhongchu Ni, Sai Li, Xiaowei Deng +12 more·Nov 17, 2022
Quantum error correction (QEC) aims to protect logical qubits from noises by using the redundancy of a large Hilbert space, which allows errors to be detected and corrected in real time^ 1 . In most QEC codes^ 2 – 8 , a logical qubit is encoded in so...
Feature selection through quantum annealing
Andrew Vlasic, Hunter Grant, Salvatore Certo·Nov 17, 2022
Feature selection is a technique in statistical prediction modeling that identifies features in a record with a strong statistical connection to the target variable. Excluding features with a weak statistical connection to the target variable in trai...
Near-term quantum computing techniques: Variational quantum algorithms, error mitigation, circuit compilation, benchmarking and classical simulation
Heliang Huang, Xiao-Yue Xu, Chu Guo +5 more·Nov 16, 2022
Quantum computing is a game-changing technology for global academia, research centers and industries including computational science, mathematics, finance, pharmaceutical, materials science, chemistry and cryptography. Although it has seen a major bo...
Noise-robust ground state energy estimates from deep quantum circuits
H. J. Vallury, Michael A. Jones, G. White +3 more·Nov 16, 2022
In the lead up to fault tolerance, the utility of quantum computing will be determined by how adequately the effects of noise can be circumvented in quantum algorithms. Hybrid quantum-classical algorithms such as the variational quantum eigensolver (...
Adaptive surface code for quantum error correction in the presence of temporary or permanent defects
A. Siegel, Armands Strikis, Thomas Flatters +1 more·Nov 15, 2022
Whether it is at the fabrication stage or during the course of the quantum computation, e.g. because of high-energy events like cosmic rays, the qubits constituting an error correcting code may be rendered inoperable. Such defects may correspond to i...
Robust quantum control for higher order coupling term in trapped ions
Jing-bo Wang·Nov 15, 2022
Trapped ion hardware has made significant progress recently and is now one of the leading platforms for quantum computing. To construct two-qubit gates in trapped ions, experimental manipulation approaches for ion chains are becoming increasingly pre...
Protecting expressive circuits with a quantum error detection code
C. Self, Marcello Benedetti, D. Amaro·Nov 12, 2022
A successful quantum error correction protocol would allow quantum computers to run algorithms without suffering from the effects of noise. However, fully fault-tolerant quantum error correction is too resource intensive for existing quantum computer...
Superconductor modulation circuits for Qubit control at microwave frequencies
S. Razmkhah, A. Bozbey, P. Febvre·Nov 12, 2022
Readout and control of qubits are limiting factors in scaling quantum computers. An ideal solution is to integrate energy-efficient cryogenic circuits close to the qubits to perform control and pre-processing tasks. With orders of magnitude lower pow...