Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,406 papers in 12 months (-22% vs prior quarter)
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Qubit Platforms
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...
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...
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 $M$...
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 ...
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...
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 ...
A Modified Depolarization Approach for Efficient Quantum Machine Learning
Bikram Khanal, Pablo Rivas·Apr 10, 2024
Quantum Computing in the Noisy Intermediate-Scale Quantum (NISQ) era has shown promising applications in machine learning, optimization, and cryptography. Despite these progresses, challenges persist due to system noise, errors, and decoherence. Thes...
Quantum Tunneling: From Theory to Error‐Mitigated Quantum Simulation
Sorana Catrina, Alexandra Baicoianu·Apr 10, 2024
Ever since the discussions about a possible quantum computer arised, quantum simulations have been at the forefront of possible utilities, with the task of quantum simulations being one that promises quantum advantage. Recently, advancements have mad...
Quantum algorithms to simulate quadratic classical Hamiltonians and optimal control
H. Krovi·Apr 10, 2024
Simulation of realistic classical mechanical systems is of great importance to many areas of engineering such as robotics, dynamics of rotating machinery and control theory. In this work, we develop quantum algorithms to estimate quantities of intere...
Shallow Quantum Circuit Implementation of Symmetric Functions With Limited Ancillary Qubits
Wei Zi, Junhong Nie, Xiaoming Sun·Apr 9, 2024
Optimizing the depth and number of ancillary qubits in quantum circuits is crucial in quantum computation, given the limitations imposed by current quantum devices. In this article, we introduce an innovative approach for implementing arbitrary symme...
Scalable Noise Characterization of Syndrome-Extraction Circuits with Averaged Circuit Eigenvalue Sampling
Evan T. Hockings, Andrew C. Doherty, Robin Harper·Apr 9, 2024
Characterizing the performance of noisy quantum circuits is central to the production of prototype quantum computers and can enable improved quantum error correction that exploits noise biases identified in a quantum device. We develop a scalable noi...
Efficient Quantum Gibbs Samplers with Kubo–Martin–Schwinger Detailed Balance Condition
Zhiyan Ding, Bowen Li, Lin Lin·Apr 9, 2024
Lindblad dynamics and other open-system dynamics provide a promising path towards efficient Gibbs sampling on quantum computers. In these proposals, the Lindbladian is obtained via an algorithmic construction akin to designing an artificial thermosta...
Distributing Arbitrary Quantum Graph States by Graph Transformation
Tingxiang Ji, Jianqing Liu, Zheshen Zhang·Apr 8, 2024
Quantum graph state is a special class of nonlocal state among multiple quantum particles, underpinning several nonclassical and promising applications such as quantum computing and quantum secret sharing. Recently, establishing quantum graph states ...
Quantum optimization with linear Ising penalty functions for customer data science
Puya Mirkarimi, Ishaan Shukla, David C. Hoyle +2 more·Apr 8, 2024
Constrained combinatorial optimization problems, which are ubiquitous in industry, can be solved by quantum algorithms such as quantum annealing (QA) and the quantum approximate optimization algorithm (QAOA). In these quantum algorithms, constraints ...
Ground State Preparation via Dynamical Cooling
Danial Motlagh, Modjtaba Shokrian Zini, J. Arrazola +1 more·Apr 8, 2024
Quantum algorithms for probing ground-state properties of quantum systems require good initial states. Projection-based methods such as eigenvalue filtering rely on inputs that have a significant overlap with the low-energy subspace, which can be cha...
Feedback-Based Quantum Algorithm for Excited States Calculation
Salahuddin Abdul Rahman, Özkan Karabacak, Rafal Wisniewski·Apr 6, 2024
Recently, feedback-based quantum algorithms have been introduced to calculate the ground states of Hamiltonians, inspired by quantum Lyapunov control theory. This paper aims to generalize these algorithms to the problem of calculating an eigenstate o...
Review on Quantum Walk Computing: Theory, Implementation, and Application
Xiaogang Qiang, Shixin Ma, Haijing Song·Apr 5, 2024
Classical random walk formalism shows a significant role across a wide range of applications. As its quantum counterpart, the quantum walk is proposed as an important theoretical model for quantum computing. By exploiting the quantum effects such as ...
Digital quantum simulation of cavity quantum electrodynamics: insights from superconducting and trapped ion quantum testbeds
Alex H. Rubin, Brian Marinelli, Victoria A. Norman +15 more·Apr 5, 2024
We explore the potential for hybrid development of quantum hardware where currently available quantum computers simulate open cavity quantum electrodynamical (CQED) systems for applications in optical quantum communication, simulation and computing. ...
Engineering Quantum States with Neutral Atoms
Jan Balewski, M. Kornjača, Katherine Klymko +5 more·Apr 5, 2024
Aquila, an analog quantum simulation platform developed by QuEra Computing, supports control of the position and coherent evolution of up to 256 neutral atoms. This study details novel experimental protocols designed for analog quantum simulators tha...