Papers
Live trends in quantum computing research, updated daily from arXiv.
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11,887
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11,044 papers in 12 months (-19% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Modeling the non-Markovian Brownian motion of an optomechanical resonator
Aritra Ghosh, Malay Bandyopadhyay, M. Bhattacharya·Apr 6, 2026
We propose a globally-admissible phenomenological spectral density of the bath for the non-Markovian Brownian motion of an optomechanical resonator, motivated by the near-resonance experimental observation of a non-Ohmic spectrum in [Nat. Commun. 6, ...
Toward Quantum Simulation of SU(2) Gauge Theory using Non-Compact Variables
Emanuele Mendicelli, Georg Bergner, Masanori Hanada·Apr 6, 2026
Simulating lattice gauge theories on quantum computers presents unique challenges that drive the development of novel theoretical frameworks. The orbifold lattice approach offers a scalable method for simulating SU($N$) gauge theories in arbitrary di...
Hybrid Fourier Neural Operator for Surrogate Modeling of Laser Processing with a Quantum-Circuit Mixer
Mateusz Papierz, Asel Sagingalieva, Alix Benoit +3 more·Apr 6, 2026
Data-driven surrogates can replace expensive multiphysics solvers for parametric PDEs, yet building compact, accurate neural operators for three-dimensional problems remains challenging: in Fourier Neural Operators, dense mode-wise spectral channel m...
Coexistence of CHSH Nonlocality and KCBS Contextuality in a Single Quantum State
Khai Nguyen, Duc M. Doan, Hung Q. Nguyen·Apr 6, 2026
Contextuality and nonlocality are distinct manifestations at the foundation of quantum mechanics, yet their coexistence within a single quantum state remains subtle. In a hybrid CHSH--KCBS scenario involving the entanglment of a qubit and a qutrit, t...
Quadrature-Symmetric PulsePol for Robust Quantum Control Beyond the Ideal Pulse Approximation
Mayur Jhamnani, Venkata SubbaRao Redrouthu, Jose P. Carvalho +6 more·Apr 6, 2026
PulsePol is an elegantly designed pulse-sequence-based quantum control scheme that enables polarization transfer between electron and nuclear spins, for example, in nitrogen-vacancy (NV) centers. However, previous analyses of PulsePol assumed very st...
A Quantum Search Approach to Magic Square Constraint Problems with Classical Benchmarking
Rituparna R, Harsha Varthini, Aswani Kumar Cherukuri·Apr 6, 2026
This paper presents a quantum search approach to combinatorial constraint satisfaction problems, demonstrated through the generation of magic squares. We reformulate magic square construction as a quantum search problem in which a reversible, constra...
Canonical Uncertainty Relations for Madelung Variables in Curved Spacetime
Jorge Meza-Domínguez, Tonatiuh Matos·Apr 6, 2026
We establish fundamental uncertainty relations for the hydrodynamic variables arising from the Madelung representation of quantum fields in curved spacetime. Through canonical quantization of the density $n$ and phase $θ$ variables and their conjugat...
QCommute: a tool for symbolic computation of nested commutators in quantum many-body spin-1/2 systems
Oleg Lychkovskiy, Viacheslav Khrushchev, Ilya Shirokov·Apr 6, 2026
We present QCommute, a software tool implemented in C++ for symbolic computation of nested commutators between a Hamiltonian and local observables in quantum many-body spin-1/2 systems on one-, two-, and three-dimensional hypercubic lattices. The com...
What quantum computer to buy?
Alex Krasnok·Apr 6, 2026
The phrase ``buy a quantum computer'' hides several different procurement problems. An institution may be seeking cloud access for teaching, reserved capacity for research, a local instrument for hardware training, an optimization appliance, or a str...
Physical currents for stochastic Einstein-Podolsky-Rosen quantum trajectories
R. Y. Teh, M. Thenabadu, P. D. Drummond +1 more·Apr 6, 2026
Theories of the measured homodyne current generated by a stochastic Schrödinger equation (SSE) can be tested in a simulation of the Einstein-Podolsky-Rosen (EPR) correlations for a two-mode squeezed state. We carry out such a simulation, and determin...
Interaction-free measurement of multiple objects using a universal integrated photonic processor
Sara Franco, Anita Camillini, Ernesto F. Galvão·Apr 6, 2026
The phenomenon of interaction-free measurement (IFM) enables the probabilistic detection of an absorbing object with reduced photon absorption. We report the experimental implementation of a simultaneous IFM of multiple objects using a single quantum...
Unsharp Measurement with Adaptive Gaussian POVMs for Quantum-Inspired Image Processing
Debashis Saikia, Bikash K. Behera, Mayukha Pal +1 more·Apr 6, 2026
We propose a quantum measurement-based framework for probabilistic transformation of grayscale images using adaptive positive operator-valued measures (POVMs). In contrast, to existing approaches that are largely centered around segmentation or thres...
Quantum-inspired Ising machine using sparsified spin connectivity
Moe Shimada, Koki Awaya, Ryoya Yonemoto +2 more·Apr 6, 2026
Combinatorial optimization problems become computationally intractable as these NP-hard problems scale. We previously proposed extraction-type majority voting logic (E-MVL), a quantum-inspired algorithm using digital logic circuits. E-MVL mimics the ...
Phase-Stable Hologram Updates for Large-Scale Neutral-Atom Array Reconfiguration
Erdong Huang, Jiayi Huang, Hongshun Yao +2 more·Apr 6, 2026
Assembling large-scale, defect-free Rydberg atom arrays is a key technology for neutral-atom quantum computation. Dynamic holographic optical tweezers enable the assembly and reconfiguration of such arrays, but phase mismatches between successive hol...
Breaking the Entanglement-Structure Trade-off: Many-Body Localization Protects Emergent Holographic Geometry in Random Tensor Networks
Zhihua Liang·Apr 6, 2026
We present a systematic numerical investigation of the "entanglement geometry gravity" chain in random tensor networks (RTN) established by the ER EPR conjecture and Jacobson's thermodynamic derivation. First, we verify the kinematic foundation: the ...
Optimal, Qubit-Efficient Quantum Vehicle Routing via Colored-Permutations
Chinonso Onah, Kristel Michielsen·Apr 6, 2026
We formulate a global-position colored-permutation encoding for the capacitated vehicle routing problem. Each of the $K$ vehicles selects a disjoint partial permutation, and the sum of these $K$ color layers forms a full $n\times n$ permutation matri...
A Demon that remembers: An agential approach towards quantum thermodynamics of temporal correlations
Ruo Cheng Huang·Apr 6, 2026
This thesis develops a decision-theoretic framework for extracting thermodynamic work from temporal correlations in quantum systems. We model a classical agent -- lacking quantum memory -- performing adaptive work extraction through continuous infere...
Efficient direct quantum state tomography using fan-out couplings
Jaekwon Chang, Guedong Park, Hyunseok Jeong +2 more·Apr 6, 2026
Characterizing quantum states is essential for validating quantum devices, yet conventional quantum state tomography becomes prohibitively expensive as system size grows. Direct tomography offers a distinct route by enabling selective access to indiv...
Digital-Analog Quantum Simulation and Computing: A Perspective on Past and Future Developments
Lucas Lamata·Apr 6, 2026
Quantum simulation and computing traditionally has been based on two main paradigms, namely, digital and analog. In the digital paradigm, usually single and two-qubit gates (where qubit is an acronym for quantum bit) are employed as building blocks f...
Quantum Clock Synchronization Networks: A Survey
Uman Khalid, Muhammad Shohibul Ulum, Mujirin +3 more·Apr 6, 2026
Quantum clock synchronization (QCS) aims to establish a shared temporal reference between distant nodes by exploiting uniquely quantum phenomena such as entanglement, single-photon interference, and quantum correlations. In contrast to classical sync...