Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
33,580
This Month
455
Today
0
Research Volume
16,598 papers in 12 months (-31% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Activate genuine nonlocality from distinguishable sets in tripartite systems
Hui-Juan Zuo, Ying-Ying Lu, Shao-Ming Fei·Aug 21, 2026
A set of orthogonal quantum states in multipartite systems is of genuine nonlocality if it is locally indistinguishable in every bipartition. If it is locally reducible when the parties are separated, we say that it has genuine nonlocality of type~\u...
Laziness of Quantum Walks on Graphs
Amulya Mohan, Christino Tamon, Yichi Xu +1 more·Aug 21, 2026
The trace of the average mixing matrix of a quantum walk measures the "laziness" of the walk: the higher the trace, the more likely that the walker returns home in the long run. In this paper, we develop tools to study this graph invariant arising fr...
Restoring heat and particle flow in strongly coupled non-equilibrium devices
Noa Ludwin, Ohad Cremerman, Milan Šindelka +1 more·Aug 21, 2026
Under non-equilibrium conditions, energy/particle currents flow through a quantum system coupled to multiple baths. Although the fluxes increase in the weak coupling regime as the coupling strengthens, the reason why they decrease to zero for large c...
Difference-Set Weyl Channels: Exact Capacity, Optimizer Bifurcation, and Scalable Entanglement Separation
Se-Wan Ji·Aug 21, 2026
In odd local dimension $D$, complete Wigner positivity yields stochastic phase-space dynamics on Wigner-nonnegative states but does not control signed inputs, entanglement across channel uses, or collective decoding. Using a subsystem-resolved Weyl d...
Prediction of a layer nonlinear Hall effect in bilayer nonmagnetic or antiferromagnetic systems
Zehou Li, Shenda He, Pan Zhou +3 more·Aug 21, 2026
Nonlinear Hall effects provide a powerful probe of quantum geometry in solids and enable rectification phenomena beyond the constraints of linear response. In this Letter, we predict a \emph{layer nonlinear Hall effect} (LNHE) in stacked bilayer syst...
Quantum Zeno and Anti-Zeno Responses: Universal Spectral Criterion for Measurement-Induced Decay
Yu-Xiang Chen, Yuan-De Jin, Wen-Long Ma·Aug 21, 2026
We develop a general framework for characterizing the response of an evolving quantum system to repetitive quantum measurements. Modeling each evolution-measurement cycle as a quantum channel induced by an effective Liouvillian generator, we find tha...
On quantum channels: extreme points, topology, and categorical properties
J. M. S. T. da Silva·Aug 21, 2026
In this thesis, quantum channels are studied from the point of view of Mathematics. We studied the CPTP (completely positive trace preserving) and UCPTP channels, the latter being the unital channels. In both cases, the sets are compact convex, so th...
Continuous-angle logical rotations in the Steane code
Eric Huang, Daiwei Zhu, Matteo Ippoliti +2 more·Aug 21, 2026
We experimentally demonstrate continuous-angle logical $Z$ rotations in the $[[7,1,3]]$ Steane code on the IonQ Forte trapped-ion processor. A round of the protocol applies a transversal physical $Z$ rotation by $θ$, followed by Steane syndrome extra...
Predicting Resource Efficient Hamiltonian Decomposition for Continuous-Time Quantum Walk Simulations
Mostafa Atallah, Rebekah Herrman, Zain H. Saleem·Aug 21, 2026
Simulating a continuous-time quantum walk (CTQW) on a graph in the circuit model of quantum computing requires decomposing its Hamiltonian into terms that can be Trotterized into hardware-native gates. We consider two such decompositions: the standar...
The Claws in Plain Sight: Unauthorized Context Disclosure through LLM Agent Tool Calls
Ben Dong, Zhonghao Guo, Tianyi Lu +1 more·Aug 21, 2026
LLM agents routinely construct tool-call arguments from user profiles, conversation history, retrieved documents, and prior tool results. However, legitimate access to contextual information does not imply authorization to transmit that information f...
Symmetry Adapted Hierarchical Equations of Motion for Exact Simulations of Large Polariton Systems
M. Elious Mondal, Pengfei Huo·Aug 21, 2026
Hierarchical equations of motion(HEOM) provide exact dynamics of open quantum systems coupled to harmonic baths, but their computational cost becomes prohibitive for systems with many independent local environments. In this work, we develop a symmetr...
Nonlocal correlation in quantum network under relativistic motion
Si-Han Li, Tian-Yang Wang, Ai-Yan Tong +1 more·Aug 21, 2026
We investigate the relativistic dynamics of network nonlocality in general $n$-local networks with chain and star topologies using the Unruh-DeWitt detector model. We show that the relativistic degradation of network nonlocality is strongly governed ...
Scaling Behavior of Parameterized Quantum Circuits from a Lie-Algebraic Perspective
Hiroshi Ohno·Aug 20, 2026
Understanding how the performance of parameterized quantum circuits scales with available resources is important for characterizing their trainability and effective model capacity. In this study, we numerically investigate data scaling, model scaling...
Clifford-efficient sparse state preparation for molecular wavefunctions
Yingrong Chen, Nathan A. Baker, Rushi Gong +7 more·Aug 20, 2026
Sparse quantum state preparation concerns an $n$-qubit target state that is a superposition of only $d \ll 2^n$ computational basis states. Existing approaches exploit this sparsity by compressing these $d$ basis states and their amplitudes onto a sm...
Nonlinear Diamagnetic Interactions in Ultrastrongly Coupled 2D Electrons
Dasom Kim, Kiran M. Kulkarni, Vaibhav Sharma +15 more·Aug 20, 2026
The quantum Hopfield model is widely used to describe ultrastrong light--matter coupling between cavity photons and collective bosonic excitations in solids, where the diamagnetic interaction is conventionally assumed to be a constant. We experimenta...
$\mathcal{PT}$ and anti-$\mathcal{PT}$ phase transitions in a trimerized Su--Schrieffer--Heeger chain with nonreciprocal Rashba spin-orbit coupling
Milad Jangjan, Linhu Li, Longwen Zhou +1 more·Aug 20, 2026
We theoretically investigate a one-dimensional trimerized Su--Schrieffer--Heeger chain with three sublattices per unit cell subjected to a nonreciprocal Rashba spin-orbit coupling. Invoking a spin-flip symmetry, the non-Hermitian Hamiltonian decompos...
Energetics in daemonic work extraction protocols via non-ideal QND-energy measurement
Daniele Morrone, Francesco Albarelli, Vittorio Giovannetti +2 more·Aug 20, 2026
We address the problem of extracting work from a quantum system assisted by a quantum non-demolition (QND) energy measurement. When a perfect QND measurement can be performed and an auxiliary zero-temperature bath is available, the full energy of the...
Perfect state transfer and Cayley presentations
Arnbjörg Soffía Árnadóttir, Krystal Guo·Aug 20, 2026
We study perfect state transfer on Cayley graphs from the point of view that state transfer is a property of a graph and not of a group. This paper is a bridge between the classical question about isomorphic Cayley graphs of non-isomorphic groups and...
Collective Quantum Logic Spectroscopy
Raphael Kaubruegger, Matthew Patkowski, Yicheng Zhang +3 more·Aug 20, 2026
Scaling trapped-ion quantum sensors from single ions to large ensembles is a key challenge for next-generation precision measurements. At the same time, many ion species of interest for optical clocks and tests of fundamental physics lack closed cycl...
First Search for Ultraheavy Dark Matter Using a Magnetically Levitated Particle
Dennis G. Uitenbroek, Dorian W. P. Amaral, Juehang Qin +4 more·Aug 20, 2026
We present the first search for ultraheavy dark matter using a magnetically levitated particle. The POLONAISE experiment uses a milligram-scale ferromagnet levitated in a superconducting trap, admitting a force sensitivity of $0.07\,\mathrm{fN\,Hz^{-...