Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,012 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Subsystem Statistics and Conditional Self-Similarity of Random Quantum States
Sangchul Oh·Feb 23, 2026
We analytically derive the bit-string probability distributions of subsystems of random pure states and depolarized random states using the Dirichlet distribution. We identify the exact Beta distribution as the universal statistical law of random qua...
Optimized Phase Masks for Absorption of Ultra-Broadband Pulses by Narrowband Atomic Ensembles
L. B. A. Mélo, Daniel Felinto, Marcio H. G. de Miranda·Feb 23, 2026
By combining genetic algorithm and a spatial light modulator we theoretically analyse how to improve a two-photon cascade absorption in atomic ensembles, inspecting the impact of various configurations and parameters in the optimized phase mask. At l...
Superresolution technique beyond the diffraction limit under a structured beam via different optical nanostructures
Subhankar Roy, Jianping Hu, M Ummal Momeen·Feb 23, 2026
To overcome the limit of diffraction while achieving the superresolution technique, solid immersion lenses are the key optical elements for data storage and nanophotonics applications. Recent demonstrations have shown how different nanostructures (su...
Robust GHZ State Preparation via Majority-Voted Boundary Measurements
Jean-Baptiste Waring, Sébastien Le Beux, Christophe Pere·Feb 23, 2026
Preparing high-fidelity Greenberger-Horne-Zeilinger (GHZ) states on noisy quantum hardware remains challenging due to cumulative gate errors and decoherence. We introduce Group-Majority-Voting (Group-MV), a dynamic-circuit protocol that partitions ar...
Contextuality-enhanced quantum state discrimination under fixed failure probability
Min Namkung, Hyang-Tag Lim·Feb 23, 2026
Quantum state discrimination enables the accurate identification of quantum states, which are generally nonorthogonal. Among various strategies, minimum-error discrimination and unambiguous state discrimination exhibit contextuality-enhanced success ...
Quantum approaches to learning parity with noise
D. Shiu·Feb 23, 2026
The learning parity with noise (LPN) problem is a well-established computational challenge whose difficulty is critical to the security of several post-quantum cryptographic primitives such as HQC and Classic McEliece. Classically, the best-known att...
AI Agents for Variational Quantum Circuit Design
Marco Knipfer, Alexander Roman, Konstantin T. Matchev +2 more·Feb 22, 2026
Variational quantum circuits (VQCs) constitute a central building block of near-term quantum machine learning (QML), yet the principled design of expressive and trainable architectures remains a major open challenge. The VQC design space grows combin...
Gravitational Poissonian Spontaneous Localization Model of Hybrid Quantum-Classical Newtonian Gravity: Energy Increase and Experimental Bounds
Nicolò Piccione·Feb 22, 2026
The Gravitational Poissonian Spontaneous Localization (GPSL) model is a hybrid classical-quantum framework in which Newtonian gravity emerges from stochastic collapses of a smeared mass-density operator. Consistency of the hybrid dynamics entails mom...
High-order long-time asymptotics for small solutions to the one-dimensional nonlinear Schrödinger equation
Jacek Jendrej, Tony Salvi·Feb 22, 2026
We investigate the global well-posedness and modified scattering for the one-dimensional Schrödinger equation with gauge-invariant polynomial nonlinearity. For small localized initial data of finite energy in a low-regularity class, we establish glob...
Learning partial transpose signatures in qubit ququart states from a few measurements
Christian Candeago, Paolo Da Rold, Michele Grossi +2 more·Feb 22, 2026
Higher-dimensional quantum systems are attracting interest for improving quantum protocol performance by increasing memory space. Characterizing quantum resources of such systems is fundamental but experimentally costly. We tackle the first non-trivi...
Mass-Independent Gravitationally Induced Entanglement
Lorenzo Braccini, Alessio Serafini, Sougato Bose·Feb 22, 2026
We analytically solve the entangling quantum dynamics of two interacting Stern-Gerlach Interferometers~(SGI). Each SGI exploits an operator-valued force applied by a qubit to create and recombine a non-Gaussian state of matter. The entangling phase b...
Self-correction phase transition in the dissipative toric code
Sanjeev Kumar, Hendrik Weimer·Feb 22, 2026
We analyze a time-continuous version of a cellular automaton decoder for the toric code in the form of a Lindblad master equation. In this setting, a self-correcting quantum memory becomes a thermodynamical phase of the steady state, which manifests ...
Entanglement dynamics of many-body quantum states: sensitivity to system conditions and a hidden universality
Devanshu Shekhar, Pragya Shukla·Feb 22, 2026
We consider physical Hamiltonians that can be represented by the multiparametric Gaussian ensembles, theoretically derive the state ensembles for its eigenstates and analyze the effect of varying system conditions on its bipartite entanglement entrop...
A Physics-Informed Neuro-Fuzzy Framework for Quantum Error Attribution
Marwa R. Hassan, Naima Kaabouch·Feb 22, 2026
As quantum processors scale beyond 100 qubits, distinguishing software bugs from stochastic hardware noise becomes a critical diagnostic challenge. We present a neuro-fuzzy framework that addresses this attribution problem by combining Adaptive Neuro...
Quantum Sketches, Hashing, and Approximate Nearest Neighbors
Sajjad Hashemian·Feb 22, 2026
Motivated by Johnson--Lindenstrauss dimension reduction, amplitude encoding, and the view of measurements as hash-like primitives, one might hope to compress an $n$-point approximate nearest neighbor (ANN) data structure into $O(\log n)$ qubits. We r...
Eigenstate-assisted realization of general quantum controlled unitaries with a fixed cost
Carlos Navas-Merlo, Juan Carlos García-Escartín·Feb 22, 2026
Controlled unitary gates are a basic element in many quantum algorithms. Converting a general unitary $U$ with a known decomposition into its controlled version, controlled-$U$, can introduce a large overhead in terms of the depth of the circuit. We ...
Ion-atom two-qubit quantum gate based on phonon blockade
Subhra Mudli, Bimalendu Deb·Feb 22, 2026
In a previous paper [S. Mudli {\it et al.} Phys. Rev. A 110, 062618 (2024)], it was shown that a trapped ion can mediate interaction between two largely separated Rydberg atoms, and this mediated interaction can be leveraged to perform a universal tw...
Some effective operators for graphene monolayer superlattices, from variational perturbation theory
Louis Garrigue·Feb 22, 2026
Our goal is to provide precise effective operators for monolayer graphene at Fermi energy. We consider the microscopic potential created by a lattice, and add a macroscopic potential with the same periodicity but varying at a scale $\varepsilon^{-1} ...
Kaiwu-PyTorch-Plugin: Bridging Deep Learning and Photonic Quantum Computing for Energy-Based Models and Active Sample Selection
Hongdong Zhu, Qi Gao, Yin Ma +6 more·Feb 22, 2026
This paper introduces the Kaiwu-PyTorch-Plugin (KPP) to bridge Deep Learning and Photonic Quantum Computing across multiple dimensions. KPP integrates the Coherent Ising Machine into the PyTorch ecosystem, addressing classical inefficiencies in Energ...
Near-perfect Noisy Quantum State Teleportation
Md Manirul Ali, Sovik Roy, Dipankar Home·Feb 22, 2026
Achieving high fidelity of quantum teleportation (QT) in a noisy environment is an essential requirement for its real-world applications. To this end, we devise a distinctive protocol for ensuring teleportation fidelity {\it close to unity}, hinging ...