Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,522 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Entanglement Request Scheduling in Quantum Networks Using Deep Q-Network
Gongyu Ni, Lester T. W. Ho, Holger Claussen·May 18, 2025
In this paper, a novel Deep Q-Network (DQN) based scheduling method to optimize delay time and fairness among entanglement requests in quantum repeater networks is proposed. The scheduling of requests determines which pairs of end nodes should be ent...
Quantum Entanglement is Quantum: ZZ Production at the LHC
Dorival Gonçalves, Ajay Kaladharan, Frank Krauss +1 more·May 17, 2025
Polarization and spin correlations in diboson systems serve as powerful tools for precision tests and searches for new physics. Recently, interpreting these observables through the lens of quantum information, for instance by examining whether the di...
Qubit based on 0-$\pi$ Josephson junctions
N. Stefanakis·May 17, 2025
We investigate the static properties of 0-$\pi$ Josephson junctions, with particular emphasis on their application in superconducting quantum circuits. Using a theoretical framework based on the sine-Gordon equation, we analyze the phase evolution fo...
Q-Policy: Quantum-Enhanced Policy Evaluation for Scalable Reinforcement Learning
Kalyan Cherukuri, Aarav Lala, Yash Yardi·May 17, 2025
We propose Q-Policy, a hybrid quantum-classical reinforcement learning (RL) framework that mathematically accelerates policy evaluation and optimization by exploiting quantum computing primitives. Q-Policy encodes value functions in quantum superposi...
Variational quantum simulation of a nonadditive relaxation dynamics in a qubit coupled to a finite-temperature bath
Lucas Q. Galvão, Clebson Cruz, Antonio Cesar do Prado Rosa Junior +1 more·May 17, 2025
In this paper, we present an application of the variational quantum simulation (VQS) framework to capture finite-temperature open-system dynamics on near-term quantum hardware. By embedding the generalized amplitude-damping channel into the VQS algor...
Unbiased observable estimation with approximate channels in fault-tolerant quantum computation
Dmitrii Khitrin, Kenneth R. Brown, Abhinav Anand·May 16, 2025
Unitary errors, such as those arising from fault-tolerant compilation of quantum algorithms, systematically bias observable estimates. Correcting this bias typically requires additional resources, such as an increased number of non-Clifford gates. In...
Compactifying linear optical unitaries using multiport beamsplitters
P. A. Ameen Yasir, Peter van Loock·May 16, 2025
We show that any $N$-dimensional unitary matrix can be realized using a finite sequence of concatenated identical fixed multiport beamsplitters (MBSs) and phase shifters (PSs). Our construction is based on a Lie group theorem applied to existing deco...
Channel coding against quantum jammers via minimax
Michael X. Cao, Yongsheng Yao, Mario Berta·May 16, 2025
We introduce a minimax approach for characterizing the capacities of fully quantum arbitrarily varying channels (FQAVCs) under different shared resource models. In contrast to previous methods, our technique avoids de Finetti-type reductions, providi...
Walsh-Floquet Theory of Periodic Kick Drives
James Walkling, Marin Bukov·May 16, 2025
Periodic kick drives are ubiquitous in digital quantum control, computation, and simulation, and are instrumental in studies of chaos and thermalization for their efficient representation through discrete gates. However, in the commonly used Fourier ...
Photonic Networking of Quantum Memories in High-Dimensions
Mikhail Shalaev, Sagnika Saha, G. Toh +6 more·May 16, 2025
Quantum networking enables the exchange of quantum information between physically separated quantum systems, which has applications ranging from quantum computing to unconditionally secure communication. Such quantum information is generally represen...
Quantum-Evolutionary Neural Networks for Multi-Agent Federated Learning
Aarav Lala, Kalyan Cherukuri·May 16, 2025
As artificial intelligence continues to drive innovation in complex, decentralized environments, the need for scalable, adaptive, and privacy-preserving decision-making systems has become critical. This paper introduces a novel framework combining qu...
TensorMixedStates: a Julia library for simulating pure and mixed quantum states using matrix product states
J'erome Houdayer, G. Misguich·May 16, 2025
We introduce TensorMixedStates, a Julia library built on top of ITensor which allows the simulation of quantum systems in presence of dissipation using matrix product states (MPS). It offers three key features: i) it implements the MPS representation...
Accelerating Parameter Initialization in Quantum Chemical Simulations via LSTM-FC-VQE
Ran-Yu Chang, Yu-Cheng Lin, Pei-Che Hsu +2 more·May 16, 2025
Variational Quantum Eigensolver (VQE) is a leading algorithm for quantum chemistry on near-term devices, but its performance is often limited by inefficient parameter initialization, which leads to slow convergence and high computational overhead. Wh...
Analytical fidelity calculations for photonic linear cluster state generation
Rohit Prasad, Simon D. Reiss, Giora Peniakov +5 more·May 16, 2025
By precisely timed optical excitation of their spin, optical emitters such as semiconductor quantum dots or atoms can be harnessed as sources of linear photonic cluster states. This significantly reduces the required resource overhead to reach fault-...
Forensics of Error Rates of Quantum Hardware
Rupshali Roy, Swaroop Ghosh·May 16, 2025
The qubit technologies, basis gate set, noise behavior, speed and coupling architecture are among the various factors that vary among various backends. Although third-party cloud providers offering quantum hardware as a service offer lower cost and f...
Quantum computing with atomic qubit arrays: confronting the cost of connectivity
M. Saffman·May 16, 2025
These notes present a review of the status of quantum computing with arrays of neutral atom qubits, an approach which has demonstrated remarkable progress in the last few years. Scaling digital quantum computing to qubit counts and control fidelities...
Decentralized Framework for Teleportation in Quantum Core Interconnects
P. S. R. Suance, Ruchika Gupta, Maurizio Palesi +1 more·May 16, 2025
Multi-core quantum computing architectures offer a promising and scalable solution to the challenges of integrating large number of qubits into existing monolithic chip design. However, the issue of transferring quantum information across the cores r...
Digital Quantum Simulation of Squeezed States via Enhanced Bosonic Encoding and its Demonstration With Superconducting Qubits
Hengyue Li, Yusheng Yang, Zhe-Hui Wang +6 more·May 16, 2025
We present a fully digital approach for simulating single‐mode squeezed states using an enhanced bosonic encoding strategy on a circuit model, and demonstrate it on a superconducting quantum processor through a cloud platform. By mapping up to 2n$2^{...
Quantum compressed sensing tomographic reconstruction algorithm
Arim Ryou, Kiwoong Kim, Kyungtaek Jun·May 16, 2025
Computed tomography (CT) is a non-destructive technique for observing internal images and has proven highly valuable in medical diagnostics. Recent advances in quantum computing have begun to influence tomographic reconstruction techniques. The quant...
Temporal coherence of single photons emitted by hexagonal Boron Nitride defects at room temperature
J. -V. Vidal Martínez-Pons, S. -K. Kim, M. Behrens +6 more·May 15, 2025
Color centers in hexagonal boron nitride (hBN) emerge as promising quantum light sources at room temperature, with potential applications in quantum communications, among others. The temporal coherence of emitted photons (i.e. their capacity to inter...