Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,749
This Month
1,196
Today
0
Research Volume
13,047 papers in 12 months (-2% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
In-situ benchmarking of fault-tolerant quantum circuits. I. Clifford circuits
Xiao Xiao, Dominik Hangleiter, Dolev Bluvstein +2 more·Jan 29, 2026
Benchmarking physical devices and verifying logical algorithms are important tasks for scalable fault-tolerant quantum computing. Numerous protocols exist for benchmarking devices before running actual algorithms. In this work, we show that both phys...
Optimized adiabatic-impulse protocol preserving Kibble-Zurek scaling with attenuated anti-Kibble-Zurek behavior
Han-Chuan Kou, Zhi-Han Zhang, Xin-Hui Wu +3 more·Jan 29, 2026
We propose an optimized adiabatic-impulse (OAI) protocol that substantially reduces the evolution time for crossing a quantum phase transition while preserving Kibble-Zurek (KZ) scaling. Near criticality, the control parameter is ramped linearly acro...
Quantum steering as a probe of energy transfer in quantum batteries
Meng-Long Song, Zan Cao, Xue-Ke Song +2 more·Jan 29, 2026
This study investigates the role of EPR steering in characterizing the energy dynamics of quantum batteries (QBs) within \textcolor{black}{a charging system that features shared reservoirs. After optimizing parameter configurations to achieve high-en...
A general framework for interactions between electron beams and quantum optical systems
Jakob M. Grzesik, Aviv Karnieli, Charles Roques-Carmes +5 more·Jan 29, 2026
We provide a theoretical framework to describe the dynamics of a free-electron beam interacting with quantized bound systems in arbitrary electromagnetic environments. This expands the quantum optics toolbox to incorporate free-electron beams for app...
Real-space topological characterization of quasiperiodic quantum walks: Boundary-dependent phases and the Schur index
F. Iwase·Jan 29, 2026
We study the topological properties of one-dimensional discrete-time quantum walks with Fibonacci quasiperiodic modulation. Spectral analysis under open boundary conditions reveals isolated edge modes that coexist at both zero and $π$ energies within...
Belief Propagation with Quantum Messages for Symmetric Q-ary Pure-State Channels
Avijit Mandal, Henry D. Pfister·Jan 29, 2026
Belief propagation with quantum messages (BPQM) provides a low-complexity alternative to collective measurements for communication over classical--quantum channels. Prior BPQM constructions and density-evolution (DE) analyses have focused on binary a...
QCL-IDS: Quantum Continual Learning for Intrusion Detection with Fidelity-Anchored Stability and Generative Replay
Zirui Zhu, Xiangyang Li·Jan 29, 2026
Continual intrusion detection must absorb newly emerging attack stages while retaining legacy detection capability under strict operational constraints, including bounded compute and qubit budgets and privacy rules that preclude long-term storage of ...
Dispersive Microwave Sensing for Quantum Computing with Floating Electrons
Yiran Tian·Jan 29, 2026
In this dissertation, resonator-based readout techniques were developed for floating electrons as qubits on cryogenic substrates, using two platforms: electrons on liquid helium and electrons on solid neon. In addition, a cryogenic microwave source w...
A Deterministic Framework for Neural Network Quantum States in Quantum Chemistry
Zheng Che·Jan 29, 2026
Stochastic optimization of Neural Network Quantum States (NQS) in discrete Fock spaces is limited by sampling variance and slow mixing. We present a deterministic framework that optimizes a neural backflow ansatz within dynamically adaptive configura...
A Quantum-Memory-Free Quantum Secure Direct Communication Protocol Based on Privacy Amplification of Coded Sequences
Shang-Jen Su, Shi-Yuan Wang, Matthieu R. Bloch·Jan 29, 2026
We develop an information-theoretic analysis of Quantum-Memory-Free (QMF) Quantum Secure Direct Communication (QSDC) under collective attacks as an alternative to the conventional Quantum Key Distribution (QKD) protocol with one-time pads. Our main c...
Localization and scattering of a photon in quasiperiodic qubit arrays
Xinyin Zhang, Yongguan Ke, Zhengzhi Peng +4 more·Jan 29, 2026
We study the localization and scattering of a single photon in a waveguide coupled to qubit arrays with quasiperiodic spacings. As the quasiperiodic strength increases, localized subradiant states with extremely long lifetime appear around the resona...
Sampling methods to describe superradiance in large ensembles of quantum emitters
Daniel Eyles, Emmanuel Lassalle, Adam Stokes +2 more·Jan 29, 2026
Superradiance is a quantum phenomenon in which coherence between emitters results in enhanced and directional radiative emission. Many quantum optical phenomena can be characterized by the two-time quantum correlation function $g^{(2)}(t,τ)$, which d...
3D imaging of the biphoton spatiotemporal wave packet
Yang Xue, Ze-Shan He, Hao-Shu Tian +6 more·Jan 29, 2026
Photons are among the most important carriers of quantum information owing to their rich degrees of freedom (DoFs), including various spatiotemporal structures. The ability to characterize these DoFs, as well as the hidden correlations among them, di...
Reflecting boundary induced modulation of tripartite coherence harvesting
Shu-Min Wu, Xiao-Ying Jiang, Xiang-Yue Yu +2 more·Jan 29, 2026
We study the extraction of quantum coherence by three static Unruh-DeWitt (UDW) detectors that interact locally with a massless scalar vacuum field in the vicinity of an infinite perfectly reflecting boundary. Depending on the setup, the detectors ar...
The Beta-Bound: Drift constraints for Gated Quantum Probabilities
Jonathon Sendall·Jan 29, 2026
Quantum mechanics provides extraordinarily accurate probabilistic predictions, yet the framework remains silent on what distinguishes quantum systems from definite measurement outcomes. This paper develops a measurement-theoretic framework for projec...
Community detection in network using Szegedy quantum walk
Md Samsur Rahaman, Supriyo Dutta·Jan 29, 2026
In a network, the vertices with similar characteristics construct communities. The vertices in a community are well-connected. Detecting the communities in a network is a challenging and important problem in the theory of complex networks. One approa...
On the quantum nature of strong gravity
Felipe Sobrero, Luca Abrahão, Thiago Guerreiro·Jan 29, 2026
Belenchia et al. [Phys. Rev. D 98, 126009 (2018)] have analyzed a gedankenexperiment where two observers, Alice and Bob, attempt to communicate via superluminal signals using a superposition of massive particles dressed by Newtonian fields and a test...
Generating persistent-current superpositions in Bose-Einstein condensates using dynamic optical potentials
Renzo Testa, Donatella Cassettari·Jan 29, 2026
Precise and flexible manipulation of the motional state of ultracold atoms is a fundamental enabling technology for diverse applications such as quantum sensing and quantum computation. In this paper we propose a general, simple and highly efficient ...
Efficient Algorithms for Weakly-Interacting Quantum Spin Systems
Ryan L. Mann, Gabriel Waite·Jan 29, 2026
We establish efficient algorithms for weakly-interacting quantum spin systems at arbitrary temperature. In particular, we obtain a fully polynomial-time approximation scheme for the partition function and an efficient approximate sampling scheme for ...
Hidden-Field Coordination Reveals Payoff-Free Quantum Correlation Structure in Decentralized Coordination
Sinan Bugu·Jan 29, 2026
We study decentralized multi-agent coordination where agents must correlate actions against an unobserved field and cannot communicate. To isolate correlation geometry from payoff optimization, we introduce the Hidden-Field Coordination (HFC) model, ...