Papers
Live trends in quantum computing research, updated daily from arXiv.
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Research Volume
16,711 papers in 12 months (-57% vs prior quarter)
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Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Working with measurement-based computations on qudits
Piotr Mitosek, Miriam Backens·Jun 29, 2026
Measurement-based quantum computing is a universal model of quantum computation in which successive product measurements of an entangled resource state drive the computation. The non-deterministic nature of measurements necessitates adaptivity to ens...
Staged Hybridisation for Visual Quantum Reinforcement Learning via Knowledge Distillation
Javier Lazaro, Juan-Ignacio Vazquez, Pablo Garcia-Bringas·Jun 29, 2026
Visual environments are a demanding setting for quantum reinforcement learning (QRL): high-dimensional observations, unstable RL optimisation, and constrained variational quantum circuits (VQCs) are difficult to train jointly. This paper studies know...
Quantization and Biphoton Statistics of k-Gap Solitons in Nonlinear Photonic Time Crystals
Liang Zhang, Chenhao Pan, Yiming Pan·Jun 29, 2026
Nonlinear photonic time crystals (PTCs) can support solitons inside momentum k gaps, where the amplification of k gap modes is saturated by Kerr nonlinearity, forming spatially homogeneous but temporally localized excitations. Yet their quantum natur...
Situation Perception: A Necessary Primitive to Artificial Superintelligence
Ziqin Yuan, Jaymari Chua·Jun 29, 2026
Current large language models are extraordinary statistical engines. They compress vast amounts of text into useful patterns and can explain science, write code, imitate reasoning, and participate in philosophical conversation. Yet pattern mastery is...
Demonstration of unpartible entanglement
Philip Held, Laura Ares, Federico Pegoraro +4 more·Jun 29, 2026
We report on the first experimental verification of mode-independent entanglement. Commonly, the entanglement of a state is firmly based on pre-defined parties that are correlated, and the state might be disentangled when the definition of the partie...
Stable Qubit Readout and the Identifiability of Population Change
Dongdong Zhang·Jun 29, 2026
Stable readout statistics are often taken as evidence for a well-defined physical response, but stability alone need not identify which state quantity has changed. We analyze this issue for finite collections of qubit states measured by binary readou...
Modulation theory formulation of atomic light-matter interaction
Matteo Simoni, Ivan Rojkov, Jonathan Home·Jun 29, 2026
We provide a re-formulation of the light-matter interaction of trapped-atom systems in terms of classical modulation theory. We introduce commuting ``mean'' quadrature operators together with ``deviation'' operators that describe the quantum fluctuat...
Connecting Density Matrix Spectroscopy to Biexciton Entanglement Dynamics
Yusuke Masaki, Takashi Otaki, Hiroaki Matsueda·Jun 29, 2026
Quantum entanglement is one of the most intriguing features of quantum mechanics. To investigate the entanglement between two excitons in a biexciton, an experimental technique called density matrix spectroscopy (DMS) has recently been developed. DMS...
Quantum-enhanced Monte Carlo Tree Search framework for combinatorial optimization problems
Yohan Finet, Yves Bérubé-Lauzière, Victor Drouin-Touchette·Jun 29, 2026
Over the past decades, the operations research community has developed numerous effective optimization algorithms, yet quantum computing is emerging as a new computational paradigm with the potential to approach optimization problems more efficiently...
Quantum Computations on Fusion Blanket Molten Salts
Susanta Das, Thiago J. Pinheiro Dos Santos, Subhamoy Bhowmik +14 more·Jun 29, 2026
Molten salts such as FLiBe (2LiF--BeF$_2$) are leading blanket materials for breeding and recovering tritium in fusion reactors. Predicting tritium speciation requires accurate electronic ground-state energies for representative molten-salt clusters,...
Provable Quantum Advantage for Dynamical Phase Transition
Jue Xu, Xiao Yuan, Qi Zhao·Jun 29, 2026
The universal scaling of critical behavior in phase transitions is a cornerstone of physics. Dynamical quantum phase transitions (DQPTs) are their nonequilibrium analogues: abrupt nonanalyticities that emerge as a quantum system evolves in time. Yet ...
Blueprint for a fault-tolerant compound photon-atom quantum architecture
Geva Arwas, Doron Azoury, Daniel Azses +11 more·Jun 29, 2026
Fault-tolerant quantum computing requires architectures that simultaneously address scalability, connectivity, and error correction under realistic noise constraints. We present a compound photonic-atomic quantum computing platform that uses cavity Q...
Learning the structure of open quantum systems
Laura Lewis, Ewin Tang, John Wright·Jun 29, 2026
We design an algorithm for learning the coefficients of an $n$-qubit constant-local Lindbladian to $\varepsilon$ error with $O(g d^2 \log(n) / \varepsilon^2)$ total evolution time, where $g$ is the single-site energy and $d$ is the (approximate) degr...
Phase-Altered Interleaved Randomized Benchmarking for Compiled Quantum Gates
Simona K. Grigorova, Nikolay V. Vitanov, Boyan T. Torosov·Jun 29, 2026
Interleaved randomized benchmarking (IRB) provides a scalable estimate of a gate's error rate, but its standard guarantees require the interleaved gate to be Clifford~\cite{Magesan2012Interleaved,magesan2012characterizing}. In superconducting process...
All-optical switching of continuous-variable entanglement in an absorption-suppressed plasmonic nanodimer
Elif Ozturk, Mehmet Gunay, Ramazan Sahin +1 more·Jun 29, 2026
A subwavelength quantum-photonic circuit element should simultaneously generate nonclassical light, suppress plasmonic loss, and remain dynamically tunable. We show that an orthogonal plasmonic nanorod dimer can satisfy all three requirements. A phas...
Thermometry with multilevel transmon probes
Antonio Mandarino, Matteo G. A. Paris, Claudia Benedetti·Jun 29, 2026
Superconducting transmon systems are promising platforms for nanoscale thermometry due to their high sensitivity to environmental fluctuations. Their intrinsic anharmonicity, which is essential for qubit operations, gives rise to a non-equidistant en...
Exact Helicity-Orbital Coupled Dynamics in Chiral Media: An Optical Dirac Framework for Photonic Rabi Oscillations
Xuhui Cheng, Longlong Feng·Jun 29, 2026
We demonstrate that light propagation in reciprocal chiral photonic media admits a unified description in terms of an emergent Dirac structure in helicity space. Starting from Maxwell's equations, we reformulate the electromagnetic field as a four-co...
Quantum Lazy Sampling and Path Recording for Any Group
Ben Foxman, Alex Lombardi, Fermi Ma +2 more·Jun 29, 2026
A central challenge in quantum algorithms and cryptography is reasoning about algorithms with oracle access to a random group element (e.g. a random function, permutation, or unitary). Can we efficiently simulate such algorithms? Can we determine wha...
Action on the Sphere: An Interfering Mean-Field Propagator for the Bose-Hubbard Dimer
Elana F Todd-Miller, Eva-Maria Graefe·Jun 29, 2026
The Bose-Hubbard system has been studied extensively both theoretically and experimentally, in particular in the context of ultracold atomic gases in optical lattices. Even in the two-mode case the many-particle dynamics display complex interference ...
Existence and absence of Bose-Einstein condensation in the interacting random Kac-Luttinger model
C. Boccato, J. Kerner, M. Pechmann +1 more·Jun 29, 2026
In this paper, we study interacting bosons at zero temperature in a random and higher-dimensional continuum model introduced by Kac and Luttinger. For weak interactions we prove that there is condensation in the lowest eigenstate of the one-particle ...