Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
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...
High-rate 16-node quantum access network based on passive optical network
Ya Pan, Yiming Bian, Yang Li +12 more·Mar 5, 2024
Quantum key distribution can provide information-theoretical secure communication, which is now heading towards building the quantum secure network for real-world applications. In most built quantum secure networks, point-to-multipoint (PTMP) topolog...
Noise-Induced Transition in Optimal Solutions of Variational Quantum Algorithms
C. Li, Imanol Hernandez·Mar 5, 2024
Variational quantum algorithms are promising candidates for delivering practical quantum advantage on noisy intermediate-scale quantum (NISQ) hardware. However, optimizing the noisy cost functions associated with these algorithms is challenging for s...
Generation of true quantum random numbers with on-demand probability distributions via single-photon quantum walks.
Chao Meng, Miao Cai, Yufang Yang +7 more·Mar 5, 2024
Random numbers are at the heart of diverse fields, ranging from simulations of stochastic processes to classical and quantum cryptography. The requirement for true randomness in these applications has motivated various proposals for generating random...
Quantum Dynamical Emulation of Imaginary Time Evolution
Jacob M. Leamer, Alicia B. Magann, D. Bondar +1 more·Mar 5, 2024
We introduce a constructive method for mapping non-unitary dynamics to a weighted set of unitary operations. We utilize this construction to derive a new correspondence between real and imaginary time, which we term Imaginary Time Quantum Dynamical E...
Quantum Algorithms in a Superposition of Spacetimes
Omri Shmueli·Mar 5, 2024
Quantum computers are expected to revolutionize our ability to process information. The advancement from classical to quantum computing is a product of our advancement from classical to quantum physics -- the more our understanding of the universe gr...
Simulation of Chemical Reactions on a Quantum Computer.
Sumit Suresh Kale, S. Kais·Mar 5, 2024
Studying chemical reactions, particularly in the gas phase, relies heavily on computing scattering matrix elements. These elements are essential for characterizing molecular reactions and accurately determining reaction probabilities. However, the in...
Quantum Zeno Monte Carlo for computing observables
Mancheon Han, Hyowon Park, Sangkook Choi·Mar 5, 2024
The recent development of logical quantum processors marks a pivotal transition from the noisy intermediate-scale quantum (NISQ) era to the fault-tolerant quantum computing (FTQC) era. These devices have the potential to address classically challengi...
Operator Learning Renormalization Group
Xiu-Zhe Luo, D. Luo, R. Melko·Mar 5, 2024
In this paper, we present a general framework for quantum many-body simulations called the operator learning renormalization group (OLRG). Inspired by machine learning perspectives, OLRG is a generalization of Wilson's numerical renormalization group...
Hardware requirements for trapped-ion-based verifiable blind quantum computing with a measurement-only client
Janice van Dam, G. Avis, Tzula B. Propp +4 more·Mar 5, 2024
In blind quantum computing (BQC), a user with a simple client device can perform a quantum computation on a remote quantum server such that the server cannot gain knowledge about the computation. Here, we numerically investigate hardware requirements...
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 ...
Solving Nonnative Combinatorial Optimization Problems Using Hybrid Quantum–Classical Algorithms
J. Wurtz, Stefan H. Sack, Sheng-Tao Wang·Mar 5, 2024
Combinatorial optimization is a challenging problem applicable in a wide range of fields from logistics to finance. Recently, quantum computing has been used to attempt to solve these problems using a range of algorithms, including parameterized quan...
Local Quantum Search Algorithm for Random $k$-SAT with $\Omega(n^{1+\epsilon})$ Clauses
Mingyou Wu·Mar 5, 2024
The random k-SAT instances undergo a"phase transition"from being generally satisfiable to unsatisfiable as the clause number m passes a critical threshold, $r_k n$. This causes a drastic reduction in the number of satisfying assignments, shifting the...
Comparative analysis of diverse methodologies for portfolio optimization leveraging quantum annealing techniques
Zhijie Tang, A. Dou, Arit Kumar Bishwas·Mar 5, 2024
Portfolio optimization (PO) is extensively employed in financial services to assist in achieving investment objectives. By providing an optimal asset allocation, PO effectively balances the risk and returns associated with investments. However, it is...
Demonstrating Efficient and Robust Bosonic State Reconstruction via Optimized Excitation Counting
Tanjung Krisnanda, C. Fontaine, Adrian Copetudo +6 more·Mar 5, 2024
Quantum state reconstruction is an essential element in quantum information processing. However, efficient and reliable reconstruction of nontrivial quantum states in the presence of hardware imperfections can be challenging. This task is particularl...
Tunable quantum criticality and pseudocriticality across the fixed-point annihilation in the anisotropic spin-boson model
Manuel Weber·Mar 4, 2024
Spin-boson models are simple examples of quantum dissipative systems, but also serve as effective models in quantum magnetism and exhibit nontrivial criticality. Recently, they have been established as a platform to study the nontrivial renormalizati...
Online Locality Meets Distributed Quantum Computing
Amirreza Akbari, Xavier Coiteux-Roy, Francesco d'Amore +8 more·Mar 4, 2024
We connect three distinct lines of research that have recently explored extensions of the classical LOCAL model of distributed computing: A. distributed quantum computing and non-signaling distributions [e.g. STOC 2024], B. finitely-dependent process...
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...
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...
Characterizing Dynamic Hybridization of Majorana Zero Modes for Universal Quantum Computing.
Themba Hodge, Eric Mascot, Dan Crawford +1 more·Mar 4, 2024
Qubits built out of Majorana zero modes (MZMs) have long been theorized as a potential pathway toward fault-tolerant topological quantum computation. Almost unavoidable in these processes is Majorana wave function overlap, known as hybridization, whi...