Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,548
This Month
1,041
Today
0
Research Volume
12,928 papers in 12 months (-5% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Identical, independent quantum weak measurements violate objective realism
Tomasz Rybotycki, Tomasz Białecki, Josep Batle +4 more·Mar 23, 2026
We demonstrate violation of objective realism in quantum world using unconstrained weak measurements. Instead of limited Leggett-Garg approach with artificial bounds on the observed values, we assume two identical and indepenent weak detectors and fi...
Hyperloss from coherent spatial-mode mixing in quantum-correlated networks
Stephan Grebien, Julian Gurs, Roman Schnabel +1 more·Mar 23, 2026
Quantum-correlated networks distribute quantum resources such as squeezed and entangled states. These states are central to modern quantum technology, including photonic quantum computing, quantum communications, non-destructive biological sensing an...
Non-Hermiticity induced thermal entanglement phase transition
Bikashkali Midya·Mar 23, 2026
Theoretical analysis of a prototypical two-qubit effective non-Hermitian system characterized by asymmetric Heisenberg $XY$ interactions in the absence of external magnetic fields demonstrates that maximal bipartite entanglement and quantum phase tra...
Emergent thermal fluctuations and non-Hermitian phase transitions in open photon condensates
Moritz Janning, Roman Kramer, Michael Turaev +2 more·Mar 23, 2026
We investigate the nonequilibrium dynamics of an open photon Bose-Einstein condensate in a dye-filled microcavity using a Lindblad master-equation approach, treating the condensate and the noncondensed fluctuations on the same footing. The driven-dis...
Accurate ground state energy estimation with noise and imperfect state preparation
Alicja Dutkiewicz, Thomas E. O'Brien, Stefano Polla·Mar 23, 2026
We introduce a classical estimator for the post-processing of quantum phase estimation data generated either by quantum-Fourier-transform-based or quantum-signal-processing-based methods. We focus on the estimation of a single target phase promised t...
Canonically consistent quantum master equation for proton-transfer reactions
Zahra Sartipi, Richard Gundermann, Janet Anders +1 more·Mar 23, 2026
The canonically consistent quantum master equation (CCQME) method to treat system-bath dynamics is used to describe intramolecular proton transfer in the thioacetylacetone molecule (TAA, C$_4$H$_6$OS), modeled as an $N$-level quantum system coupled t...
Entanglement degradation in regular and singular spacetimes
Orlando Luongo, Stefano Mancini, Sebastiano Tomasi·Mar 23, 2026
We study entanglement degradation near the horizons of regular, Reissner-Nordström, and Schwarzschild-de Sitter black holes, considering the Bardeen, Hayward, and generalized Hayward metrics as regular black holes. To this end, we compute the entangl...
Numerical security framework for quantum key distribution with bypass channels
Lewis Wooltorton, Twesh Upadhyaya, Mohsen Razavi·Mar 23, 2026
Satellite based quantum key distribution (QKD) aims to establish secure key exchange over long distances despite significant technological challenges. To alleviate some of these challenges, Ghalaii et al. [PRX Quantum 4, 040320 (2023)] proposed that ...
A generalized Coulomb problem for a spin-1/2 fermion
V. B. Mendrot, A. S. de Castro, P. Alberto·Mar 23, 2026
We study the Dirac equation in 3+1 dimensions with a general combination of scalar, vector and tensor interactions with arbitrary strengths, all of them described by central Coulomb potentials acting on a particular plane of motion. For the tensor co...
Fiber-optic quantum interface with an array of more than 100 individually addressable atoms on an optical nanofiber
Mitsuyoshi Takahata, Jameesh Keloth, Takashi Yamamoto +3 more·Mar 23, 2026
Integrating the scalability of individually addressable arrays of optical-tweezer-trapped single atoms with the efficient light-matter interface provided by nanophotonic waveguides has been a long-standing challenge in quantum technologies based on a...
Using spatiotemporal Born rule for testing macroscopic realism: some applications to the pseudo-density matrices and nonclassical temporal correlations
Naim Elias Comar, Lucas C. Céleri, Mia Stamatova +3 more·Mar 23, 2026
We show that, given an evolving quantum system and the quasiprobability distribution generated by the spatiotemporal generalization of the Born rule in pseudo density-matrices (PDMs), this distribution deviates from the sequential measurements probab...
Materials Beyond Hamiltonian Limits -- Quantum Measurement as a Resource for Material Design
Jochen Mannhart·Mar 23, 2026
Recent studies have identified materials and devices whose behavior lies beyond the scope of conventional electronic-structure theory. Such theories are formulated entirely in terms of Hamiltonian evolution and therefore describe only unitary dynamic...
Global Optimization for Parametrized Quantum Circuits
Iosif Sakos, Antonios Varvitsiotis, Georgios Korpas +1 more·Mar 23, 2026
In the absence of error correction, noisy intermediate-scale quantum devices are operated by training parametrized quantum circuits (PQCs) so as to minimize a suitable loss function. Finding the optimal parameters of those circuits is a hard optimiza...
Nonlinear Electro-Optic Visible Photonic Circuits for Solid-State Quantum Defects
Yongchan Park, Yong Soo Lee, Hansol Kim +11 more·Mar 23, 2026
Integrated visible photonic engines for solid-state quantum defects provide a foundation for scalable quantum networks. While miniaturization is advancing, active manipulation remains limited by the difficulty of achieving simultaneous milliwatt-scal...
Model selection in hybrid quantum neural networks with applications to quantum transformer architectures
Harsh Wadhwa, Rahul Bhowmick, Naipunnya Raj +3 more·Mar 23, 2026
Quantum machine learning models generally lack principled design guidelines, often requiring full resource-intensive training across numerous choices of encodings, quantum circuit designs and initialization strategies to find effective configuration....
Neural Belief-Matching Decoding for Topological Quantum Error Correction Codes
Luca Menti, Francisco Lázaro·Mar 23, 2026
Quantum error correction (QEC) is critical for scalable fault-tolerant quantum computing. Topological codes, such as the toric code, offer hardware-efficient architectures but their Tanner graphs contain many girth-4 cycles that degrade the performan...
All-optical quantum memory using bosonic quantum error correction codes
Kaustav Chatterjee, Niklas Budinger, Kian Latifi Yaghin +2 more·Mar 23, 2026
Reliable quantum memory is essential for scalable quantum networks and fault-tolerant photonic quantum computing. We present a quantitative analysis of an all-optical quantum memory architecture in which a Gottesman-Kitaev-Preskill (GKP) encoded qubi...
Implemetation of a shooting technique for quantum optimal control on spin qudits
Paul-Louis Etienney, Paul-Antoine Hervieux, Denis Jankovic +3 more·Mar 23, 2026
High-fidelity control of quantum systems is essential for scalable quantum technologies. We introduce a shooting-based quantum optimal control algorithm for systems of finite-dimensional Hilbert spaces, and demonstrate its performances through numeri...
Efficient Gaussian Simulations of Fermionic Open Quantum Systems
Yinan Fang, Hyesung Choi, Minchul Lee +1 more·Mar 23, 2026
We review existing classical simulation methods for performing fermionic Gaussian operations and develop new methods to address the gap by adhering to the fundamental theoretical framework established by Bravyi [Quantum Info. Comput. 5, 216 (2005)] f...
Gate-based Readout and Cooling of Neutral Atoms
Richard Bing-Shiun Tsai, Lewis R. B. Picard, Xiangkai Sun +3 more·Mar 23, 2026
Neutral atom arrays have seen tremendous progress in quantum simulation, quantum metrology, and fault-tolerant quantum computing. However, hardware constraints such as atom loss and heating remain significant challenges. In this work, we introduce a ...