Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Adaptive User-Centric Entanglement Routing in Quantum Data Networks
Lei Wang, Jieming Bian, Jie Xu·Apr 13, 2024
Distributed quantum computing (DQC) holds immense promise in harnessing the potential of quantum computing by interconnecting multiple small quantum computers (QCs) through a quantum data network (QDN). Establishing long-distance quantum entanglement...
Optimal Universal Quantum Encoding for Statistical Inference
Farhad Farokhi·Apr 12, 2024
Optimal encoding of classical data for statistical inference using quantum computing is investigated. A universal encoder is sought that is optimal for a wide array of statistical inference tasks. Accuracy of any statistical inference is shown to be ...
Abelian Group Quantum Error Correction in Kitaev's Model
S. X. Cui, César Galindo, Diego Romero·Apr 12, 2024
In this paper, we present a detailed mathematical description of the error correction process for Kitaev's model for finite Abelian groups. The number of errors Kitaev's model can correct depends on the lattice and its topology. Although there is a t...
Modeling Stochastic Chemical Kinetics on Quantum Computers
Tilas Kabengele, Yash Lokare, J. B. Marston +1 more·Apr 12, 2024
The Chemical Master Equation (CME) provides a highly accurate, yet extremely resource-intensive representation of a stochastic chemical reaction network and its kinetics due to the exponential scaling of its possible states with the number of reactin...
Routing and Spectrum Allocation in Broadband Quantum Entanglement Distribution
Rohan Bali, Ashley Tittelbaugh, Shelbi L. Jenkins +5 more·Apr 12, 2024
We investigate resource allocation for quantum entanglement distribution over an optical network. We characterize and model a network architecture that employs a single broadband quasi-deterministic time-frequency heralded Einstein-Podolsky-Rosen (EP...
Navigating Quantum Security Risks in Networked Environments: A Comprehensive Study of Quantum-Safe Network Protocols
Yaser Baseri, Vikas Chouhan, A. Hafid·Apr 12, 2024
The emergence of quantum computing poses a formidable security challenge to network protocols traditionally safeguarded by classical cryptographic algorithms. This paper provides an exhaustive analysis of vulnerabilities introduced by quantum computi...
Grover’s algorithm in a four-qubit silicon processor above the fault-tolerant threshold
I. Thorvaldson, D. Poulos, C. Moehle +15 more·Apr 12, 2024
Spin qubits in silicon are strong contenders for the realization of a practical quantum computer, having demonstrated single- and two-qubit gates with fidelities above the fault-tolerant threshold, and entanglement of three qubits. However, maintaini...
Optimized Quantum Autoencoder
Yibin Huang, Muchun Yang, D. L. Zhou·Apr 12, 2024
Quantum autoencoder (QAE) compresses a bipartite quantum state into its subsystem using a self-checking mechanism. How to characterize and minimize the lost information in this process is essential for understanding the compression mechanism of QAE. ...
Quantum molecular docking with quantum-inspired algorithm
Yunting Li, Xiaopeng Cui, Zhaoping Xiong +5 more·Apr 12, 2024
Molecular docking (MD) is a crucial task in drug design, which predicts the position, orientation, and conformation of the ligand when bound to a target protein. It can be interpreted as a combinatorial optimization problem, where quantum annealing (...
Enhancing Initial State Overlap through Orbital Optimization for Faster Molecular Electronic Ground-State Energy Estimation.
Pauline J. Ollitrault, Cristian L. Cortes, Jérôme F. Gonthier +7 more·Apr 12, 2024
The phase estimation algorithm is crucial for computing the ground-state energy of a molecular electronic Hamiltonian on a quantum computer. Its efficiency depends on the overlap between the Hamiltonian's ground state and an initial state, which tend...
Evaluation framework for quantum security risk assessment: A comprehensive strategy for quantum-safe transition
Yaser Baseri, Vikas Chouhan, Ali Ghorbani +1 more·Apr 12, 2024
The rise of large-scale quantum computing poses a significant threat to traditional cryptographic security measures. Quantum attacks undermine current asymmetric cryptographic algorithms, rendering them ineffective. Even symmetric key cryptography is...
Benchmarking logical three-qubit quantum Fourier transform encoded in the Steane code on a trapped-ion quantum computer
K. Mayer, C. Ryan-Anderson, N. Brown +20 more·Apr 12, 2024
We implement logically encoded three-qubit circuits for the quantum Fourier transform (QFT), using the [[7,1,3]] Steane code, and benchmark the circuits on the Quantinuum H2-1 trapped-ion quantum computer. The circuits require multiple logical two-qu...
Entanglement determination with a deep multiscale entanglement renormalization ansatz
Kushagra Garg, Zeeshan Ahmed, Andreas Thomasen·Apr 12, 2024
We study the deep multi-scale entanglement renormalization ansatz (DMERA) on quantum hardware and the causal cone of a subset of the qubits which make up the ansatz. This causal cone spans $O(M+\log{N})$ physical qubits on a quantum device, where $M$...
A Lightweight Protocol for Matchgate Fidelity Estimation
Jędrzej Burkat, Sergii Strelchuk·Apr 11, 2024
We present a low-depth randomised algorithm for the estimation of entanglement fidelity between an $n$-qubit matchgate circuit $\mathcal{U}$ and its noisy implementation $\mathcal{E}$. Our procedure makes use of a modified Pauli-Liouville representat...
Quantum computation in fermionic thermal field theories
Wenyang Qian, Bin Wu·Apr 11, 2024
Thermal properties of quantum fields at finite temperature are crucial to understanding strongly interacting matter and recent development in quantum computing has provided an alternative and promising avenue of study. In this work, we study thermal ...
On Reducing the Execution Latency of Superconducting Quantum Processors via Quantum Job Scheduling
Wenjie Wu, Yiquan Wang, G. Yan +3 more·Apr 11, 2024
Quantum computing has gained considerable attention, especially after the arrival of the Noisy Intermediate-Scale Quantum (NISQ) era. Quantum processors and cloud services have been made worldwide increasingly available. Unfortunately, jobs on existi...
Hyperpolarisation Dynamics: Asymptotic Polarisation
O. T. Whaites, T. S. Monteiro·Apr 11, 2024
For applications of solid state quantum computing and quantum simulations, high fidelity initialisation of thermally mixed electronic and nuclear spin qubits is essential. Whereas electronic spins can readily be initialised optically to high fidelity...
Benchmarking Digital Quantum Simulations Above Hundreds of Qubits Using Quantum Critical Dynamics
Alexander Miessen, Daniel J. Egger, I. Tavernelli +1 more·Apr 11, 2024
The real-time simulation of large many-body quantum systems is a formidable task, that may only be achievable with a genuine quantum computational platform. Currently, quantum hardware with a number of qubits sufficient to make classical emulation ch...
Quantum Multigrid Algorithm for Finite Element Problems
O. M. Raisuddin, Suvranu De·Apr 11, 2024
Quantum linear system algorithms (QLSAs) can provide exponential speedups for the solution of linear systems, but the growth of the condition number for finite element problems can eliminate the exponential speedup. QLSAs are also incapable of using ...
Classical simulation and quantum resource theory of non-Gaussian optics
Oliver Hahn, Ryuji Takagi, Giulia Ferrini +1 more·Apr 10, 2024
We propose efficient algorithms for classically simulating Gaussian unitaries and measurements applied to non-Gaussian initial states. The constructions are based on decomposing the non-Gaussian states into linear combinations of Gaussian states. We ...