Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,188
This Month
0
Today
0
Research Volume
13,357 papers in 12 months (+7% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum dynamics of spin-J particles in static and rotating magnetic fields: Entanglement resonances and kinks
Nargis Sultana, Siddharth Seetharaman, Rejish Nath·Oct 30, 2025
We examine the quantum dynamics of both a single large spin and a pair of spins in the presence of static and rotating magnetic fields, which can be important for qudit-based quantum technologies. Notably, we find resonant, periodic oscillations betw...
Programmable digital quantum simulation of 2D Fermi-Hubbard dynamics using 72 superconducting qubits
Faisal Alam, Jan Lukas Bosse, Ieva Čepaitė +32 more·Oct 30, 2025
Simulating the time-dynamics of quantum many-body systems was the original use of quantum computers proposed by Feynman, motivated by the critical role of quantum interactions between electrons in the properties of materials and molecules. Accurately...
Quantum Nonlocality under Latency Constraints
Dawei Ding, Zhengfeng Ji, Pierre Pocreau +2 more·Oct 30, 2025
Bell inequality violation is the phenomenon where multiple non-communicating parties can exhibit correlations using quantum resources that are impossible if they can only use classical resources. One way to enforce non-communication is to apply a lat...
Extended Coherent States
Z. M. McIntyre, A. Kasman, R. Milson·Oct 30, 2025
Using the formalism of Maya diagrams and ladder operators, we describe the algebra of annihilating operators for the class of rational extensions of the harmonic oscillator. This allows us to construct the corresponding coherent state in the sense of...
Benchmarking quantum key distribution by mixing single photons and laser light
Yann Portella, Petr Steindl, Juan Rafael Álvarez +8 more·Oct 30, 2025
Quantum key distribution is a key application of quantum mechanics, shaping the future of privacy and secure communications. Many protocols require single photons, often approximated by strongly attenuated laser pulses. Here, we harness the emission ...
Dinosaur Photonic Crystal Cavity Interfaces for Color Center Coupling to Triangular Nanostructures
Julian M. Bopp, Lucca Valerius, Tim Schröder·Oct 30, 2025
Waveguide-coupled photonic crystal cavities with a triangular cross section fabricated by angled etching are suitable to interface embedded color centers with flying photonic qubits in quantum information applications. Moreover, their fabrication req...
Strong Kantorovich duality for quantum optimal transport with generic cost and optimal couplings on quantum bits
Gergely Bunth, József Pitrik, Tamás Titkos +1 more·Oct 30, 2025
We prove Kantorovich duality for a linearized version of a recently proposed non-quadratic quantum optimal transport problem, where quantum channels realize the transport. As an application, we determine optimal solutions of both the primal and the d...
Weak-Memory Dynamics in Discrete Time
Hugues Meyer, Kay Brandner·Oct 30, 2025
Discrete dynamics arise naturally in systems with broken temporal translation symmetry and are typically described by first-order recurrence relations representing classical or quantum Markov chains. When memory effects induced by hidden degrees of f...
Twin-Field Quantum Key Distribution: Protocols, Security, and Open Problems
Syed M. Arslan, Syed Shahmir, Noureldin Mohammad +2 more·Oct 30, 2025
Twin-Field Quantum Key Distribution (TF-QKD) has emerged as a potential protocol for long distance secure communication, overcoming the rate-distance limitations of conventional quantum key distribution without requiring trusted repeaters. By having ...
High-temperature plasma in Casimir physics
Suman Kumar Panja, Mathias Boström·Oct 30, 2025
We present a short review of an unusual but important application for a high-temperature charged plasma. The unorthodox proposition was made by Ninham concerning a contribution from Casimir forces across high-temperature electron-positron plasma in n...
Fermionic dynamics on a trapped-ion quantum computer beyond exact classical simulation
Faisal Alam, Jan Lukas Bosse, Ieva Čepaitė +37 more·Oct 30, 2025
Simulation of the time-dynamics of fermionic many-body systems has long been predicted to be one of the key applications of quantum computers. Such simulations -- for which classical methods are often inaccurate -- are critical to advancing our knowl...
Quantum predator-prey cycles in dissipative Rydberg lattices
Ya-Xin Xiang, Zhengyang Bai, Yu-Qiang Ma·Oct 30, 2025
The Lotka-Volterra model is a paradigm for self-organized predator-prey oscillations in far-from-equilibrium systems, yet testing it in real-world ecosystems is hindered by uncontrollable microscopic parameters. Here, we propose a quantum analogue of...
Entanglement Superactivation in Multiphoton Distillation Networks
Rui Zhang, Yue-Yang Fei, Zhenhuan Liu +9 more·Oct 30, 2025
In quantum networks, after passing through noisy channels or information processing, residual states may lack sufficient entanglement for further tasks, yet they may retain hidden quantum resources that can be recycled. Efficiently recycling these st...
All $d\otimes d$ dimensional entangled states are useful for the antidiscrimination of quantum measurements when $d$ is even
Satyaki Manna·Oct 30, 2025
Piani and Watrous [Phys. Rev. Lett.102, 250501 (2009)] proved that all entangled states are useful for discrimination of quantum channels. We pose the same question in the context of antidiscrimination of quantum channels. We partially answer this by...
Limitation of Quantum Walk Approach to the Maximum Matching Problem
Alcides Gomes Andrade Júnior, Akira Matsubayashi·Oct 30, 2025
The Maximum Matching problem has a quantum query complexity lower bound of $Ω(n^{3/2})$ for graphs on $n$ vertices represented by an adjacency matrix. The current best quantum algorithm has the query complexity $O(n^{7/4})$, which is an improvement o...
Thermal Casimir effect in the spin-orbit coupled Bose gas
Marek Napiórkowski, Pawel Jakubczyk·Oct 30, 2025
We study the thermal Casimir effect in ideal Bose gases with spin-orbit (S-O) coupling of Rashba type below the critical temperature for Bose-Einstein condensation. In contrast to the standard situation involving no S-O coupling, the system exhibits ...
Single-Light-Pulse Driven Compact Atom Interferometry with Measurement Induced Large Momentum Transfer
Yinghang Jiang, Jiguo Wu, Junfan Zhu +2 more·Oct 30, 2025
We propose a fundamentally new design strategy of light-pulsed atom interferometry (LPAI) with a single atomic beam splitter. A traditional $π/2$-pulse Raman beam is employed to render a small momentum transfer at the initial state. After a short per...
Practical hybrid decoding scheme for parity-encoded spin systems
Yoshihiro Nambu·Oct 30, 2025
We propose a practical hybrid decoding scheme for the parity-encoding architecture. This architecture was first introduced by N. Sourlas as a computational technique for tackling hard optimization problems, especially those modeled by spin systems su...
QuantumBench: A Benchmark for Quantum Problem Solving
Shunya Minami, Tatsuya Ishigaki, Ikko Hamamura +6 more·Oct 30, 2025
Large language models are now integrated into many scientific workflows, accelerating data analysis, hypothesis generation, and design space exploration. In parallel with this growth, there is a growing need to carefully evaluate whether models accur...
Quantum-coherent nonlinear interferometry using electron-phonon systems for entanglement-assisted terahertz sensing
Junya Ogiri, Hiroaki Minamide, Kunio Ishida·Oct 30, 2025
We present a theoretical framework for quantum-coherent nonlinear interferometry in which the nonlinear medium is modeled as active electron-phonon quantum systems rather than a passive $χ^{(2)}$ converter. By explicitly retaining the quantum coheren...