Papers
Live trends in quantum computing research, updated daily from arXiv.
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12,880 papers in 12 months (-5% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Strong Dispersive Coupling Between a Mechanical Resonator and a Fluxonium Superconducting Qubit
Nathan R. A. Lee, Yudan Guo, A. Cleland +10 more·Apr 26, 2023
We demonstrate strong dispersive coupling between a fluxonium superconducting qubit and a 690 megahertz mechanical oscillator, extending the reach of circuit quantum acousto-dynamics (cQAD) experiments into a new range of frequencies. We have enginee...
Stabilizer Formalism for Operator Algebra Quantum Error Correction
G. Dauphinais, D. Kribs, M. Vasmer·Apr 22, 2023
We introduce a stabilizer formalism for the general quantum error correction framework called operator algebra quantum error correction (OAQEC), which generalizes Gottesman's formulation for traditional quantum error correcting codes (QEC) and Poulin...
Shot Optimization in Quantum Machine Learning Architectures to Accelerate Training
Koustubh Phalak, Swaroop Ghosh·Apr 21, 2023
Quantum Machine Learning (QML) has recently emerged as a rapidly growing domain as an intersection of Quantum Computing (QC) and Machine Learning (ML) fields. Hybrid quantum-classical models have demonstrated exponential speedups in various machine l...
Quantum machine learning for image classification
Arsenii Senokosov, Alexander Sedykh, A. Sagingalieva +2 more·Apr 18, 2023
Image classification, a pivotal task in multiple industries, faces computational challenges due to the burgeoning volume of visual data. This research addresses these challenges by introducing two quantum machine learning models that leverage the pri...
Exploring exotic configurations with anomalous features with deep learning: Application of classical and quantum-classical hybrid anomaly detection
Kumar Ghosh, Sumit Ghosh·Apr 17, 2023
In this article we present the application of classical and quantum-classical hybrid anomaly detection schemes to explore exotic configuration with anomalous features. We consider the Anderson model as a prototype where we define two types of anomali...
Anderson impurity solver integrating tensor network methods with quantum computing
François Jamet, Connor Lenihan, Lachlan P. Lindoy +4 more·Apr 13, 2023
Solving the Anderson impurity model typically involves a two-step process, where one first calculates the ground state of the Hamiltonian and then computes its dynamical properties to obtain Green’s function. Here, we propose a hybrid classical/quant...
Quantum Multi-Resolution Measurement with application to Quantum Linear Solver
Yoshiyuki Saito, Xinwei Lee, Dong-Qi Cai +1 more·Apr 12, 2023
Quantum computation consists of a quantum state corresponding to a solution, and measurements with some observables. To obtain a solution with an accuracy $\epsilon$, measurements $O(n/\epsilon^2)$ are required, where $n$ is the size of a problem. Th...
A hybrid quantum algorithm to detect conical intersections
Emiel Koridon, Joana Fraxanet, A. Dauphin +3 more·Apr 12, 2023
Conical intersections are topologically protected crossings between the potential energy surfaces of a molecular Hamiltonian, known to play an important role in chemical processes such as photoisomerization and non-radiative relaxation. They are char...
High-fidelity two-qubit gates of hybrid superconducting-semiconducting singlet-triplet qubits
Maria Spethmann, S. Bosco, A. Hofmann +2 more·Apr 11, 2023
Hybrid systems comprising superconducting and semiconducting materials are promising architectures for quantum computing. Superconductors induce long-range interactions between the spin degrees of freedom of semiconducting quantum dots. These interac...
Quantum approximation optimization algorithm for the trellis-based viterbi decoding of classical error-correcting codes
Mainak Bhattacharyya, Ankur Raina·Apr 5, 2023
We construct a hybrid quantum–classical Viterbi decoder for the classical error-correcting codes. Viterbi decoding is a trellis-based procedure for maximum likelihood decoding of classical error-correcting codes. In this article, we demonstrate that ...
Variational Denoising for Variational Quantum Eigensolver
Quoc-Hoan Tran, Shinji Kikuchi, H. Oshima·Apr 2, 2023
The variational quantum eigensolver (VQE) is a hybrid algorithm that has the potential to provide a quantum advantage in practical chemistry problems that are currently intractable on classical computers. VQE trains parameterized quantum circuits usi...
Thin film aluminum nitride surface acoustic wave resonators for quantum acoustodynamics
Wenhui Jiang, Junfeng Chen, Xiaoyu Liu +5 more·Apr 2, 2023
Quantum excitations of macroscopic surface acoustic waves (SAWs) have been tailored to control, communicate, and transduce stationary and flying quantum states. However, the limited lifetime of these hybrid quantum systems remains critical obstacles ...
Stabilization and Dissipative Information Transfer of a Superconducting Kerr-Cat Qubit
Ufuk Korkmaz, Deniz Türkpençe·Mar 28, 2023
Today, the competition to build a quantum computer continues, and the number of qubits in hardware is increasing rapidly. However, the quantum noise that comes with this process reduces the performance of algorithmic applications, so alternative ways...
Interpolation-based decoding of folded variants of linearized and skew Reed–Solomon codes
Felicitas Hörmann, H. Bartz·Mar 27, 2023
The sum-rank metric is a hybrid between the Hamming metric and the rank metric and suitable for error correction in multishot network coding and distributed storage as well as for the design of quantum-resistant cryptosystems. In this work, we consid...
Quantum approximate optimization via learning-based adaptive optimization
Lixue Cheng, Yu-Qin Chen, Shi-Xin Zhang +1 more·Mar 27, 2023
There is no universal way of optimizing the variation quantum circuits used in Noisy Intermediate-Scale Quantum (NISQ) applications. In this paper the authors introduce a new classical Bayesian optimizer, which converges much more quickly than conven...
Scalable multi-chip quantum architectures enabled by cryogenic hybrid wireless/quantum-coherent network-in-package
Eduard Alarc'on, S. Abadal, F. Sebastiano +9 more·Mar 24, 2023
The grand challenge of scaling up quantum computers requires a full-stack architectural standpoint. In this position paper, we will present the vision of a new generation of scalable quantum computing architectures featuring distributed quantum cores...
One-step implementation of a multi-target-qubit controlled-phase gate with photonic qubits encoded via eigenstates of the photon-number parity operator
Qi-Ping Su, Liang Bin, Yu Zhang +1 more·Mar 23, 2023
In recent years, quantum state engineering and quantum information processing using microwave fields and photons have received increasing attention. In addition, multiqubit gates play an important role in quantum information processing. In this work,...
Magnetic tuning of the tunnel coupling in an optically active quantum dot molecule
F. Bopp, Charlotte Cullip, C. Thalacker +15 more·Mar 22, 2023
Self-assembled optically active quantum dot molecules (QDMs) allow the creation of protected qubits via singlet-triplet spin states. The qubit energy splitting of these states is defined by the tunnel coupling strength and is, therefore, determined b...
A real-world test of portfolio optimization with quantum annealing
W. Sakuler, J. Oberreuter, Riccardo Aiolfi +3 more·Mar 22, 2023
In this note, we describe an experiment on portfolio optimization using the Quadratic Unconstrained Binary Optimization (QUBO) formulation. The dataset we use is taken from a real-world problem for which a classical solution is currently deployed and...
Hybrid Error-Management Strategies in Quantum Repeater Networks
Poramet Pathumsoot, Theerapat Tansuwannont, Naphan Benchasattabuse +5 more·Mar 18, 2023
A quantum network is expected to enhance distributed quantum computing and quantum communication over a long distance while providing unconditional security. As quantum entanglement is essential for a quantum network, major issues from various types ...