Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
30,392
This Month
509
Today
0
Research Volume
14,823 papers in 12 months (-23% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
AI Methods for Approximate Compiling of Unitaries
David Kremer, Victor Villar, Sanjay Vishwakarma +2 more·Jul 30, 2024
This paper explores artificial intelligence (AI) methods for the approximate compiling of unitaries, focusing on the use of fixed two-qubit gates and arbitrary single-qubit rotations typical in superconducting hardware. Our approach involves three ma...
On multivariate polynomials achievable with quantum signal processing
Lorenzo Laneve, Stefan Wolf·Jul 30, 2024
Quantum signal processing (QSP) is a framework which was proven to unify and simplify a large number of known quantum algorithms, as well as discovering new ones. QSP allows one to transform a signal embedded in a given unitary using polynomials. Cha...
Projected entangled pair states with flexible geometry
Siddhartha Patra, Sukhbinder Singh, Rom'an Or'us·Jul 30, 2024
Projected entangled pair states (PEPS) are a class of quantum many-body states that generalize matrix product states for one-dimensional systems to higher dimensions. In recent years, PEPS have advanced understanding of strongly correlated systems, e...
Elastic scattering of twisted electrons by CO$_2$ molecules at high energies
Raul Sheldon Pinto, Rakesh Choubisa·Jul 29, 2024
Elastic scattering of a twisted (Bessel) electron beam by CO$_2$ molecules is studied theoretically at high energies. The molecule's structure is optimized using coupled cluster theory and density functional theory with correlation-consistent and Pop...
Search for QCD axion dark matter with transmon qubits and quantum circuit
Shion Chen, Hajime Fukuda, Toshiaki Inada +3 more·Jul 29, 2024
We propose a direct axion dark matter (DM) search using superconducting transmon qubits as quantum sensors. With an external magnetic field applied, axion DM generates an oscillating electric field which causes the excitation of the qubit; such an ex...
Efficient Circuit-Based Quantum State Tomography via Sparse Entry Optimization
Chi-Kwong Li, Kevin Yipu Wu, Zherui Zhang·Jul 29, 2024
Many quantum states arising in algorithms and physical systems occupy only a small, structured subset of the exponentially large Hilbert space, yet standard quantum state tomography fails to exploit this structure. We present an efficient circuit-bas...
Entanglement dynamics of a two-qutrits system coupled to a spin chain
Seyed Mohsen Moosavi Khansari, Fazlollah Kazemi Hasanvand·Jul 29, 2024
In this paper, we investigate the entanglement dynamics of a two qutrits system interacting with a spin environment. Using negativity as the entanglement measure, we study the entanglement dynamics of the system. The calculations show that in cases w...
Realization of high-fidelity perfect entangler between remote superconducting quantum processors
Juan Song, Shuang Yang, Pei Liu +7 more·Jul 29, 2024
Superconducting qubits, a promising candidate for universal quantum computing, currently face limitations in chip size due to reproducibility, wiring complexity, and packaging modes. Distributed quantum modules offer a viable strategy for constructin...
A Brief Introduction to Quantum Network Control
V. Valls, Panagiotis Promponas, L. Tassiulas·Jul 29, 2024
Quantum networking is an emerging area with the potential to transform information processing and communications. In this article, we present a brief introduction to quantum network control, an area in quantum networking dedicated to designing algori...
Strong coherent ion-electron coupling using a wire data bus
Baiyi Yu, R. Betzholz, Jianming Cai·Jul 29, 2024
Ion-ion coupling over long distances represents a highly useful resource for quantum technologies, for example, to sympathetically cool or interconnect qubits in ion-based quantum-computing architectures. In this respect, the recently demonstrated wi...
Distributed Quantum Approximate Optimization Algorithm on a Quantum-Centric Supercomputing Architecture
Seongmin Kim, V. Pascuzzi, Zhihao Xu +3 more·Jul 29, 2024
Quantum approximate optimization algorithm (QAOA) has shown promise in solving combinatorial optimization problems by providing quantum speedup on near-term gate-based quantum computing systems. However, QAOA faces challenges for high-dimensional pro...
Impact of Parallel Gating on Gate Fidelities in Linear, Square, and Star Arrays of Noisy Flip‐Flop Qubits
M. De Michielis, E. Ferraro·Jul 29, 2024
Successfully implementing a quantum algorithm involves maintaining a low logical error rate by ensuring the validity of the quantum fault‐tolerance theorem. The required number of physical qubits arranged in an array depends on the chosen Quantum Err...
Benchmarking and Fidelity Response Theory of High-Fidelity Rydberg Entangling Gates
R. Tsai, Xiangkai Sun, Adam L. Shaw +2 more·Jul 29, 2024
The fidelity of entangling operations is a key figure of merit in quantum information processing, especially in the context of quantum error correction. High-fidelity entangling gates in neutral atoms have seen remarkable advancement recently. A full...
Trainability maximization using estimation of distribution algorithms assisted by surrogate modelling for quantum architecture search
Vicente P. Soloviev, V. Dunjko, C. Bielza +2 more·Jul 29, 2024
Quantum architecture search (QAS) involves optimizing both the quantum parametric circuit configuration but also its parameters for a variational quantum algorithm. Thus, the problem is known to be multi-level as the performance of a given architectu...
Solving QUBOs with a quantum-amenable branch and bound method
Thomas Haner, Kyle E. C. Booth, S.E. Borujeni +1 more·Jul 29, 2024
Due to the expected disparity in quantum vs. classical clock speeds, quantum advantage for branch and bound algorithms is more likely achievable in settings involving large search trees and low operator evaluation costs. Therefore, in this paper, we ...
Quantum algorithm for testing graph completeness
Sara Giordano, M. Martin-Delgado·Jul 29, 2024
Testing graph completeness is a critical problem in computer science and network theory. Leveraging quantum computation, we present an efficient algorithm using the Szegedy quantum walk and quantum phase estimation (QPE). Our algorithm, which takes t...
Quantum HodgeRank: Topology-based rank aggregation on quantum computers
Caesnan M. G. Leditto, A. Southwell, Behnam Tonekaboni +2 more·Jul 29, 2024
HodgeRank generalizes ranking algorithms, e.g. Google PageRank, to rank alternatives based on real-world (often incomplete) data using graphs and discrete exterior calculus. It analyzes multipartite interactions on high-dimensional networks with a co...
Experimental quantum-enhanced kernels on a photonic processor
Zhenghao Yin, Iris Agresti, G. Felice +9 more·Jul 29, 2024
Recently, machine learning had a remarkable impact, from scientific to everyday-life applications. However, complex tasks often imply unfeasible energy and computational power consumption. Quantum computation might lower such requirements, although i...
Autonomous Bootstrapping of Quantum Dot Devices
Anton Zubchenko, Danielle Middlebrooks, Torbjørn Rasmussen +4 more·Jul 29, 2024
Semiconductor quantum dots (QDs) are a promising platform for multiple different qubit implementations, all of which are voltage controlled by programmable gate electrodes. However, as the QD arrays grow in size and complexity, tuning procedures that...
Analysis of the Non-variational Quantum Walk-based Optimisation Algorithm
Tavis Bennett, L. Noakes, Jingbo Wang·Jul 29, 2024
This paper introduces in detail a non-variational quantum algorithm designed to solve a wide range of combinatorial optimisation problems, including constrained problems and problems with non-binary variables. The algorithm returns optimal and near-o...