Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,548
This Month
1,041
Today
0
Research Volume
12,896 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
Localization Without Disorder: Quantum Walks on Structured Graphs
Shyam Dhamapurkar, K. Venkata Subrahmanyam·Mar 5, 2026
Continuous-time quantum walks (CTQWs) exhibit localization phenomena that differ fundamentally from their classical counterparts, yet the precise relationship between network structure, spectral degeneracy, and confined dynamics remains incompletely ...
Quantum Wavemetry via the Mth-Power Unitary of a Mach-Zehnder Interferometer
B. S. Ham·Mar 5, 2026
A quantum wavemetry scheme based on the coherence de Broglie wavelength (CBW) is proposed using an M coupled Mach Zehnder interferometer (MZI) architecture to achieve superresolution sensing and metrology. Although CBW does not attain the Heisenberg ...
Classical Explanations in (and of) General Probabilistic Theories
John Harding, Alex Wilce·Mar 5, 2026
We introduce a notion of the ``explanation" of one (generalized) probabilistic model by another as particular kind of span in the category $\Prob$ of probabilistic models and morphisms. We show that explanations compose under a standard pullback cons...
Hamiltonian Lattice QED$_3$ with One and Two Flavors of Wilson Fermions: Topological Structure and Response
Sriram Bharadwaj, Emil Rosanowski, Simran Singh +5 more·Mar 5, 2026
The quantum simulation of topological phases in (2+1)D quantum electrodynamics with Wilson fermions provides a promising route toward realizing topological phenomena in near-term lattice experiments. We show that the commonly used staggered-fermion d...
Identification of the I$_{10}$ Donor in ZnO as a Sn--Li Complex with Large Hyperfine Interaction
Xingyi Wang, Sai Mu, Jeong Rae Kim +6 more·Mar 5, 2026
Donor impurities in wide direct band gap semiconductors provide a promising platform for spin--photon quantum technologies by combining a donor spin qubit with optically addressable transitions. In ZnO, the shallow donor with the largest reported bin...
The Need for Quantitative Resilience Models and Metrics in Classical-Quantum Computing Systems
Santiago Núñez-Corrales·Mar 5, 2026
Increasingly deeper integration of HPC resources and QPUs unveils new challenges in computer architecture and engineering. As a consequence, dependability arises again as a concern encompassing resilience, reproducibility and security. The properties...
Ultra-slow orbital and spin dynamics in an electrically tunable quantum dot molecule
Christopher Thalacker, Michelle Lienhart, Markus Stöcker +13 more·Mar 5, 2026
Tunnel-coupled optically active quantum dot molecules (QDMs), have the potential to operate as spin-photon-interfaces with coupled spins that interact with two different photon frequencies at the same time. A prerequisite is to deterministically prep...
Two-dimensional matter-wave interferometer, rotational dynamics, and spin contrast
Ryan Rizaldy, Shrestha Mishra, Anupam Mazumdar·Mar 5, 2026
We investigate a two-dimensional matter-wave interferometer where both spatial and rotational dynamics of a nanoparticle are intertwined in closing the one-loop interferometer in the Stern-Gerlach type setup. We consider the spin-contrast of the nitr...
In-situ Characterization of Light-Matter Coupling in Multimode Circuit-QED Systems
Kellen O'Brien, Won Chan Lee, Alexandra Behne +5 more·Mar 5, 2026
Multimode cavity-QED systems can be leveraged to explore a wide range of physical phenomena; however, a complex multimode environment makes systematic characterization of light-matter interactions challenging. Here we present a general measurement pr...
Core-bound waves on a Gross-Pitaevskii vortex
Evan Papoutsis, Nathan Apfel, Nir Navon·Mar 5, 2026
We find the dispersion relations of two elusive families of core-bound excitations of the Gross-Pitaevskii (GP) vortex, varicose (axisymmetric) and fluting (quadrupole) waves. For wavelengths of order the healing length, these two families -- and the...
Universal quantum computation with group surface codes
Naren Manjunath, Vieri Mattei, Apoorv Tiwari +1 more·Mar 5, 2026
We introduce group surface codes, which are a natural generalization of the $\mathbb{Z}_2$ surface code, and equivalent to quantum double models of finite groups with specific boundary conditions. We show that group surface codes can be leveraged to ...
Calculating trace distances of bosonic states in Krylov subspace
Javier Martínez-Cifuentes, Nicolás Quesada·Mar 5, 2026
Continuous-variable quantum systems are central to quantum technologies, with Gaussian states playing a key role due to their broad applicability and simple description via first and second moments. Distinguishing Gaussian states requires computing t...
Mirror codes: High-threshold quantum LDPC codes beyond the CSS regime
Andrey Boris Khesin, Jonathan Z. Lu·Mar 5, 2026
The realization of quantum error correction protocols whose logical error rates are suppressed far below physical error rates relies on an intricate combination: the error-correcting code's efficiency, the syndrome extraction circuit's fault toleranc...
Ansatz-Free Learning of Lindbladian Dynamics In Situ
Petr Ivashkov, Nikita Romanov, Weiyuan Gong +3 more·Mar 5, 2026
Characterizing the dynamics of open quantum systems at the level of microscopic interactions and error mechanisms is essential for calibrating quantum hardware, designing robust simulation protocols, and developing tailored error-correction methods. ...
Improved Decoding of Quantum Tanner Codes Using Generalized Check Nodes
Olai Å. Mostad, Eirik Rosnes, Hsuan-Yin Lin·Mar 5, 2026
We study the decoding problem for quantum Tanner codes and propose to exploit the underlying local code structure by grouping check nodes into more powerful generalized check nodes for enhanced iterative belief propagation (BP) decoding by decoding t...
High-performance syndrome extraction circuits for quantum codes
Armands Strikis, Dan E. Browne, Michael E. Beverland·Mar 5, 2026
We present a fast and effective framework for analysing and designing syndrome-extraction circuits (SECs). Our approach is based on left-right circuits, a general design for SECs which maintain low depth by staggering $X$ and $Z$ checks without inter...
Spin-resolved microscopy of $^{87}$Sr SU($N$) Fermi-Hubbard systems
Carlos Gas-Ferrer, Antonio Rubio-Abadal, Sandra Buob +3 more·Mar 5, 2026
Quantum-gas microscopes provide direct access to the phases of the Hubbard model, bringing microscopic insight into the complex competition between interactions, SU(2) magnetism, and doping. Alkaline-earth(-like) fermions extend this spin-1/2 paradig...
Quantum Simulation of Coupled Harmonic Oscillators: From Theory to Implementation
Viraj Dsouza, Weronika Golletz, Dimitrios Kranas +3 more·Mar 5, 2026
We investigate the quantum algorithm of Babbush et al. (arXiv:2303.13012v3) for simulating coupled harmonic oscillators, which promises exponential speedups over classical methods. Focusing on linearly connected oscillator chains, we bridge the gap b...
Low-depth amplitude estimation via statistical eigengap estimation
Po-Wei Huang, Bálint Koczor·Mar 5, 2026
Amplitude estimation, in its original form, is formulated as phase estimation upon the Grover walk operator. Since its introduction, subsequent improvements to the algorithm have removed the use of phase estimation and introduced low-depth variants t...
Spatiotemporal Pauli processes: Quantum combs for modelling correlated noise in quantum error correction
John F Kam, Angus Southwell, Spiro Gicev +2 more·Mar 5, 2026
Correlated noise is a critical failure mode in quantum error correction (QEC), as temporal memory and spatial structure concentrate faults into error bursts that undermine standard threshold assumptions. Yet, a fundamental gap persists between the st...