Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
28,250
This Month
22
Today
0
Research Volume
13,400 papers in 12 months (-22% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Equivalence relations between conical 2-designs and mutually unbiased generalized equiangular tight frames
Katarzyna Siudzińska·Sep 21, 2025
Quantum measurements play a fundamental role in quantum information. Therefore, increasing efforts are being made to construct symmetric measurement operators for qudit systems. A wide class of projective measurements corresponds to complex projectiv...
Dimeric perylene-bisimide organic molecules: Application as a quantum battery
Samira Elghaayda, Mostafa Mansour·Sep 21, 2025
This work introduces a unified theoretical framework for quantum batteries (QBs) constructed from thermally equilibrated arrays of dimeric perylene bisimide (PBI) molecules. These organic dimers, with chemically tunable transition energies and dipole...
Fusion-based implementation of qLDPC codes with quantum emitters
Susan X. Chen, Matthias C. Löbl, Ming Lai Chan +2 more·Sep 21, 2025
Quantum low-density parity check (qLDPC) codes offer higher encoding rate than topological codes, e.g. surface codes, making them favourable for practical, fault-tolerant quantum computing with low overhead. These codes are particularly well-suited f...
Quantum Late-Time Decay and Channel Dependence
Francesco Giacosa, Anna Kolbus, Krzysztof Kyziol +4 more·Sep 21, 2025
Quantum mechanics predicts deviations from exponential decay at short and long times, yet experimental evidence is limited. We report a power-law tail after $\sim$10 lifetimes in erythrosine~B fluorescence, confirmed by two detectors probing distinct...
Coherent oscillations in weakly anharmonic NbSe2 qubit
A. DElia, F. Chiarello, D. Di Gioacchino +10 more·Sep 21, 2025
The functionalization of quantum devices to increase their performance and extend their fields of application is an extremely active research area. One of the most promising approaches is to replace aluminum with more performant materials. Within thi...
Green's functions for magnetic Dirac operators and bulk-edge correspondence
Jean-Marie Barbaroux, Horia D. Cornean, Loïc Le Treust +2 more·Sep 21, 2025
We study the resolvent kernel (Green's function) of magnetic Dirac operators on a half-plane with boundary conditions interpolating between infinite mass and zigzag cases, excluding the latter. We show that these kernels have all the required propert...
Multi-excitation scattering in subwavelength atomic arrays
Yidan Wang, Oriol Rubies-Bigorda, Valentin Walther +1 more·Sep 21, 2025
Subwavelength atomic arrays are a leading platform for engineering light-matter interactions, enabling near-perfect single-photon mirrors and robust quantum memories based on long-lived dark spin waves. However, a comprehensive theory of their nonlin...
Explicit construction of a 2-design of ${\rm U}(2)$ from the theory of angular momentum
Rocco Maggi, Cosmo Lupo, Saverio Pascazio·Sep 21, 2025
The main aim of this work is to present an explicit construction of a 2-design of ${\rm U}(2)$, relying only on a tool that belongs to every physicists toolbox: the theory of angular momentum. Unitary designs are a rich and fundamental mathematical t...
Spatial-mode demultiplexing for quantum-inspired superresolution experiments
Nickolay Erin Titov·Sep 21, 2025
Conventional optical imaging is limited by diffraction, preventing discrimination of closely spaced incoherent sources. Inspired by quantum parameter estimation, this thesis explores spatial-mode demultiplexing (SPADE) as a method to overcome this li...
Feynman's path to Schrödinger (and various other things)
Bernat Frangi, Héctor López·Sep 21, 2025
Feynman's path integral formulation arose from his attempt to incorporate the Lagrangian framework into quantum mechanics, offering what he regarded as a more fundamental perspective than the Hamiltonian approach, particularly in the context of quant...
Algebraic machinery of quantization
Hendry M. Lim·Sep 21, 2025
We present the explicit form of the "hatted star product" within the Cahill-Glauber correspondence framework, which is a commutative mapping of two Hilbert space operators that encodes the quantization prescription. It serves as the structural mirror...
Universal two-excitation scattering in two-dimensional subwavelength atomic arrays
Yidan Wang, Oriol Rubies-Bigorda, Valentin Walther +1 more·Sep 21, 2025
Subwavelength atomic arrays are a leading platform for engineering strong light-matter interactions, presenting exciting opportunities for quantum science. However, a full understanding of their multi-excitation dynamics remains a significant challen...
Proposal for macroscopic delocalisation of a large mass in a RF trap
Martine Schut, Valerio Scarani·Sep 21, 2025
Engineering coherent spatial superpositions of levitated large masses is an ongoing challenge. Borrowing from recent experimental work, we consider a charged mass of hundreds of nanometers size (``nanoparticle'') co-trapped with an ion in a Paul trap...
Quantum information-cost relations and fluctuations beyond thermal environments: A thermodynamic inference approach
Yuanyuan Xiao, Jian-Hua Jiang, Junjie Liu·Sep 21, 2025
The Landauer's principle, a cornerstone of information thermodynamics, provides a fundamental lower bound on the energetic cost of information erasure in terms of the information content change. However, its traditional formulation is largely confine...
Direct measurement of the quantum geometric tensor in pseudo-Hermitian systems
Ze-Hao Huang, Hai-Tao Ding, Li-Jun Lang·Sep 21, 2025
The quantum geometric tensor (QGT) fundamentally encodes the geometry and topology of quantum states in both Hermitian and non-Hermitian regimes. While adiabatic perturbation theory links its real part (quantum metric) and imaginary part (Berry curva...
Quantum phase transition in two dimension nonlinear cavity optomagnonic system
Yu Sang, Jie Liu, Lei Tan·Sep 21, 2025
The superfluid-Mott insulator and ergodic-many body localization transitions based on a two dimension nonlinear cavity optomagnonic system are investigated, where a yttrium iron garnet (YIG) sphere is embedded at each site of a two-dimensional couple...
State complexity and phase identification in adaptive quantum circuits
Guoding Liu, Junjie Chen, Xiongfeng Ma·Sep 21, 2025
Adaptive quantum circuits, leveraging measurements and classical feedback, significantly expand the landscape of realizable quantum states compared to their non-adaptive counterparts, enabling the preparation of long-range entangled states and topolo...
Bosonic error correction codes based on states generated via particle number resolving measurements
S. B. Korolev, T. Yu. Golubeva·Sep 21, 2025
We introduce bosonic error correction codes for particle loss and dephasing errors, constructed from states generated by particle number measurements on two-mode Gaussian states. We analyze these states for their suitability in correcting such errors...
Quantifying multilevel coherence and multipartite correlation based on $α$-affinity
Yan Hong, Mengjia Zhang, Limin Gao +2 more·Sep 21, 2025
Compared with quantum coherence, multilevel quantum coherence offers a hierarchical classification that enables a more refined characterization. In this paper, we investigate multilevel coherence and introduce two $α$-affinity-based indicators to qua...
Quantum Adaptive Self-Attention for Financial Rebalancing: An Empirical Study on Automated Market Makers in Decentralized Finance
Chi-Sheng Chen, Aidan Hung-Wen Tsai·Sep 21, 2025
We formulate automated market maker (AMM) \emph{rebalancing} as a binary detection problem and study a hybrid quantum--classical self-attention block, \textbf{Quantum Adaptive Self-Attention (QASA)}. QASA constructs quantum queries/keys/values via va...