Papers
Live trends in quantum computing research, updated daily from arXiv.
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27,694
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Research Volume
13,007 papers in 12 months (-3% 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
Qubit-Wise Architecture Search Method for Variational Quantum Circuits
Jialin Chen, Zhiqiang Cai, Ke Xu +2 more·Mar 7, 2024
Considering the noise level limit, one crucial aspect for quantum machine learning is to design a high-performing variational quantum circuit architecture with small number of quantum gates. As the classical neural architecture search (NAS), quantum ...
Treespilation: architecture- and state-optimised fermion-to-qubit mappings
Aaron Miller, A. Glos, Zolt'an Zimbor'as·Mar 6, 2024
Quantum computers hold great promise for efficiently simulating Fermionic systems, benefiting fields like quantum chemistry and materials science. To achieve this, algorithms typically begin by choosing a Fermion-to-qubit mapping to encode the Fermio...
A multiplexed control architecture for superconducting qubits with row-column addressing
Peng Zhao·Mar 6, 2024
In state-of-the-art superconducting quantum processors, each qubit is controlled by at least one control line that delivers control pulses generated at room temperature to qubits operating at millikelvin temperatures. While this strategy has been suc...
Quantum Mixed-State Self-Attention Network
Fu Chen, Qinglin Zhao, Li Feng +3 more·Mar 5, 2024
Attention mechanisms have revolutionized natural language processing. Combining them with quantum computing aims to further advance this technology. This paper introduces a novel Quantum Mixed-State Self-Attention Network (QMSAN) for natural language...
Correlated Decoding of Logical Algorithms with Transversal Gates.
M. Cain, Chen Zhao, Hengyun Zhou +6 more·Mar 5, 2024
Quantum error correction is believed to be essential for scalable quantum computation, but its implementation is challenging due to its considerable space-time overhead. Motivated by recent experiments demonstrating efficient manipulation of logical ...
Deterministic Bethe state preparation
David Raveh, Rafael I. Nepomechie·Mar 5, 2024
<jats:p>We present an explicit quantum circuit that prepares an arbitrary <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>U</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>1</mml:mn><mml:mo stretchy="false">)</mml:mo></mml:math>-e...
Advancing quantum networking: some tools and protocols for ideal and noisy photonic systems
J. Saied, Jeffrey Marshall, Namit Anand +2 more·Mar 4, 2024
Quantum networking at many scales will be critical to future quantum technologies and experiments on quantum systems. Photonic links enable quantum networking. They will connect co-located quantum processors to enable large-scale quantum computers, p...
Diagonal operator decomposition on restricted topologies via enumeration of quantum state subsets
Jan Tułowiecki, Lukasz Czerwi'nski, Konrad Deka +3 more·Mar 4, 2024
Various quantum algorithms require usage of arbitrary diagonal operators as subroutines. For their execution on a physical hardware, those operators must be first decomposed into target device's native gateset and its qubit connectivity for entanglin...
Computing exact moments of local random quantum circuits via tensor networks
Paolo Braccia, Pablo Bermejo, L. Cincio +1 more·Mar 4, 2024
A basic primitive in quantum information is the computation of the moments EU[Tr[UρU†O]t]\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \use...
Parametric multi-element coupling architecture for coherent and dissipative control of superconducting qubits
G. Huber, F. Roy, L. Koch +20 more·Mar 4, 2024
As systems for quantum computing keep growing in size and number of qubits, challenges in scaling the control capabilities are becoming increasingly relevant. Efficient schemes to simultaneously mediate coherent interactions between multiple quantum ...
Recovering Quantum Coherence of a Cavity Qubit Coupled to a Noisy Ancilla through Real-Time Feedback
Uri Goldblatt, Nitzan Kahn, Sergey Hazanov +6 more·Mar 4, 2024
Decoherence in qubits, caused by their interaction with a noisy environment, poses a significant challenge to the development of reliable quantum processors. A prominent source of errors arises from noise in coupled ancillas, which can quickly spread...
Logical Gates and Read-Out of Superconducting Gottesman-Kitaev-Preskill Qubits
Mackenzie H. Shaw, A. C. Doherty, A. Grimsmo·Mar 4, 2024
The Gottesman-Kitaev-Preskill (GKP) code is an exciting route to fault-tolerant quantum computing since Gaussian resources and GKP Pauli-eigenstate preparation are sufficient to achieve universal quantum computing. In this work, we provide a practica...
Multiple classical noise mitigation by multiobjective robust quantum optimal control
Bowen Shao, Xiaodong Yang, Ran Liu +4 more·Mar 1, 2024
High-quality control is a fundamental requirement for quantum computation, but practically it is often hampered by the presence of various types of noises, which can be static or time-dependent. In many realistic scenarios, multiple noise sources coe...
Gate-set evaluation metrics for closed-loop optimal control on nitrogen-vacancy center ensembles in diamond
Philipp J. Vetter, Thomas Reisser, Maximilian G. Hirsch +4 more·Mar 1, 2024
A recurring challenge in quantum science and technology is the precise control of their underlying dynamics that lead to the desired quantum operations, often described by a set of quantum gates. These gates can be subject to application-specific err...
Quantum Hardware Roofline: Evaluating the Impact of Gate Expressivity on Quantum Processor Design
Justin Kalloor, Mathias Weiden, Ed Younis +3 more·Feb 29, 2024
The design space of current quantum computers is expansive, with no obvious winning solution, leaving practitioners with a crucial question: “What is the optimal system configuration to run an algorithm?” This paper explores hardware design trade-off...
Realization of High-Fidelity CZ Gate Based on a Double-Transmon Coupler
Rui Li, Kentaro Kubo, Yinghao Ho +3 more·Feb 29, 2024
Striving for higher gate fidelity is crucial not only for enhancing existing noisy intermediate-scale quantum devices, but also for unleashing the potential of fault-tolerant quantum computation through quantum error correction. A recently proposed t...
Universal quantum computation using quantum annealing with the transverse-field Ising Hamiltonian
Takashige Imoto, Yuki Susa, R. Miyazaki +1 more·Feb 29, 2024
Quantum computation is a promising emerging technology, and by utilizing the principles of quantum mechanics, it is expected to achieve faster computations than classical computers for specific problems. There are two distinct architectures for quant...
A simple and efficient joint measurement strategy for estimating fermionic observables and Hamiltonians
Joanna Majsak, Daniel McNulty, Michał Oszmaniec·Feb 29, 2024
We propose a simple scheme to estimate fermionic observables and Hamiltonians relevant in quantum chemistry and correlated fermionic systems. Our approach is based on implementing a measurement that jointly measures noisy versions of any product of t...
Operating semiconductor quantum processors with hopping spins
Chien-An Wang, Valentin John, Hanifa Tidjani +16 more·Feb 28, 2024
Qubits that can be efficiently controlled are essential for the development of scalable quantum hardware. Although resonant control is used to execute high-fidelity quantum gates, the scalability is challenged by the integration of high-frequency osc...
Boundary treatment for variational quantum simulations of partial differential equations on quantum computers
Paul Over, Sergio Bengoechea, T. Rung +4 more·Feb 28, 2024
The paper presents a variational quantum algorithm to solve initial-boundary value problems described by second-order partial differential equations. The approach uses hybrid classical/quantum hardware that is well suited for quantum computers of the...