Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Establishing Shared Secret Keys on Quantum Line Networks: Protocol and Security
Mina Doosti, L. Hanouz, Anne Marin +2 more·Apr 4, 2023
We show the security of multi-user key establishment on a single line of quantum communication. More precisely, we consider a quantum communication architecture where the qubit generation and measurement happen at the two ends of the line, whilst int...
Dissipative Protection of a GKP Qubit in a High-Impedance Superconducting Circuit Driven by a Microwave Frequency Comb
Lev-Arcady Sellem·Apr 4, 2023
We propose a novel approach to generate, protect, and control Gottesman-Kitaev-Preskill (GKP) qubits. It employs a microwave frequency comb parametrically modulating a Josephson circuit to enforce a dissipative dynamics of a high-impedance circuit mo...
Comparing planar quantum computing platforms at the quantum speed limit
Daniel Basilewitsch, Clemens Dlaska, W. Lechner·Apr 4, 2023
An important aspect that strongly impacts the experimental feasibility of quantum circuits is the ratio of gate times and typical error time scales. Algorithms with circuit depths that significantly exceed the error time scales will result in faulty ...
Entanglement Distillation Based on Polarization and Frequency Hyperentanglement
Dan Xu, Changjia Chen, B. Kirby +1 more·Apr 4, 2023
Entanglement distillation has many applications in quantum information processing and is an important tool for improving the quality and efficiency of quantum communication, cryptography, computing, and simulation. We propose an entanglement distilla...
Quantum Algorithms for Charged Particle Track Reconstruction in the LUXE Experiment
Arianna Crippa, L. Funcke, T. Hartung +8 more·Apr 4, 2023
The LUXE experiment is a new experiment in planning in Hamburg, which will study quantum electrodynamics at the strong-field frontier. LUXE intends to measure the positron production rate in this unprecedented regime using, among others, a silicon tr...
Searching for anomalous quartic gauge couplings at muon colliders using principal component analysis
Yiming Dong, Y. Mao, Ji-Chong Yang·Apr 4, 2023
Searching for new physics (NP) is one of the areas of high-energy physics that requires the most processing of large amounts of data. At the same time, quantum computing has huge potential advantages when dealing with large amounts of data. The princ...
Simulating the quantum Fourier transform, Grover's algorithm, and the quantum counting algorithm with limited entanglement using tensor networks
Marcel Niedermeier, J. Lado, C. Flindt·Apr 4, 2023
Quantum algorithms reformulate computational problems as quantum evolutions in a large Hilbert space. Most quantum algorithms assume that the time evolution is perfectly unitary and that the full Hilbert space is available. However, in practice, the ...
Optimizing resetting of superconducting qubits
C. M. Diniz, R. J. de Assis, N. G. de Almeida +1 more·Apr 3, 2023
Many quantum algorithms demand a large number of repetitions to obtain reliable statistical results. Thus, at each repetition it is necessary to reset the qubits efficiently and precisely in the shortest possible time, so that quantum computers actua...
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 ...
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...
Multiple silicon dangling-bond charge qubits for quantum computing: a Hilbert-space analysis of the Hamiltonian
Zahra Shaterzadeh-Yazdi, Payman Kazemikhah·Apr 1, 2023
Silicon-based dangling-bond charge qubit is one of the auspicious models for universal fault-tolerant solid-state quantum computing. In universal quantum computing, it is crucial to evaluate and characterize the computational Hilbert space and reduce...
Break-even point of the phase-flip error correcting code
Áron Rozgonyi, Gábor Széchenyi·Mar 31, 2023
In this theoretical study, we explore the use of quantum code-based memories to enhance the lifetime of qubits and exceed the break-even point, which is critical for the implementation of fault-tolerant quantum computing. Specifically, we investigate...
Improved clinical data imputation via classical and quantum determinantal point processes
Skander Kazdaghli, Iordanis Kerenidis, Jens Kieckbusch +1 more·Mar 31, 2023
Imputing data is a critical issue for machine learning practitioners, including in the life sciences domain, where missing clinical data is a typical situation and the reliability of the imputation is of great importance. Currently, there is no canon...
Learning the Complexity of Weakly Noisy Quantum States
Yusen Wu, Bujiao Wu, Yanqi Song +2 more·Mar 31, 2023
Quantifying the complexity of quantum states is a longstanding key problem in various subfields of science, ranging from quantum computing to the black-hole theory. The lower bound on quantum pure state complexity has been shown to grow linearly with...
Study of the Bound State, Electron-Detachment Energy and Reactivity of Hydride Ion using Variational Quantum Eigensolver
Abdul Kalam, Ashok Kumar V, P. Panigrahi·Mar 31, 2023
The accurate prediction and understanding of molecular energy and chemical reactivity are fundamental pursuits in the field of molecular quantum chemistry. With the limitations of the current noisy intermediate scale quantum computer (NISQ) era, the ...
Quantum Thermal State Preparation
Chi-Fang Chen, M. Kastoryano, F. Brandão +1 more·Mar 31, 2023
Preparing ground states and thermal states is essential for simulating quantum systems on quantum computers. Despite the hope for practical quantum advantage in quantum simulation, popular state preparation approaches have been challenged. Monte Carl...
Design by Contract Framework for Quantum Software
Masaomi Yamaguchi, Nobukazu Yoshioka·Mar 31, 2023
To realize reliable quantum software, techniques to automatically ensure the quantum software's correctness have recently been investigated. However, they primarily focus on fixed quantum circuits rather than the procedure of building quantum circuit...
Secure multiparty quantum computations for greatest common divisor and private set intersection
Muhammad Imran·Mar 30, 2023
We present a secure multiparty quantum computation (MPQC) for computing greatest common divisor (GCD) based on quantum multiparty private set union (PSU) by Liu, Yang, and Li. As the first step, we improve the security of the MPQC protocol for comput...
Q‐fid: Quantum Circuit Fidelity Improvement with LSTM Networks
Yikai Mao, Shaswot Shresthamali, Masaaki Kondo·Mar 30, 2023
The fidelity of quantum circuits (QC) is influenced by several factors, including hardware characteristics, calibration status, and the transpilation process, all of which impact their susceptibility to noise. However, existing methods struggle to es...
The Error Reconstruction and Compiled Calibration of Quantum Computing Cycles
Arnaud Carignan-Dugas, D. Dahlen, Ian Hincks +6 more·Mar 30, 2023
Quantum computers are inhibited by physical errors that occur during computation. For this reason, the development of increasingly sophisticated error characterization and error suppression techniques is central to the progress of quantum computing. ...