Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Harnessing Environmental Memory with Reinforcement Learning in Open Quantum Systems
Safae Gaidi, Abdallah Slaoui, Mohammed EL Falaki +1 more·Jan 3, 2026
Non-Markovian memory effects in open quantum systems provide valuable resources for preserving coherence and enhancing controllability. However, exploiting them requires strategies adapted to history-dependent dynamics. We introduce a reinforcement-l...
How Alice, long before her time, derived the principles of quantum mechanics
Marcello Poletti·Jan 3, 2026
This philosophical dialogue explores the idea that the foundational principles of quantum mechanics need not be interpreted as describing a new physics, but may instead arise from the logical necessity of formalising the act of measurement within a c...
Constant Depth Digital-Analog Counterdiabatic Quantum Computing
Balaganchi A. Bhargava, Shubham Kumar, Anne-Maria Visuri +3 more·Jan 3, 2026
We introduce a digital-analog quantum computing framework that enables counterdiabatic protocols to be implemented at constant circuit depth, allowing fast and resource-efficient quantum state preparation on current quantum hardware. Counterdiabatic ...
Single-Shot and Few-Shot Decoding via Stabilizer Redundancy in Bivariate Bicycle Codes
Mohammad Rowshan·Jan 3, 2026
Bivariate bicycle (BB) codes are a prominent class of quantum LDPC codes constructed from group algebras. While the logical dimension and quantum distance of \emph{coprime} BB codes are known to be determined by a greatest common divisor polynomial $...
The Completeness of Eigenstates in Quantum Mechanics
Guoping Zhang·Jan 3, 2026
We delineate the scope of research on the completeness of eigenstates in quantum mechanics. Based on the limit of the potential function at infinity, the proof of completeness is divided into eight cases, and theoretical proofs or numerical simulatio...
Non-Markovian and Thermodynamic Signatures in the Classicality Assessment via Kolmogorov Consistency
Arghya Maity, Ahana Ghoshal, Kelvin Onggadinata +1 more·Jan 3, 2026
The Kolmogorov consistency condition (KCC) defines the statistical boundary between classical and quantum dynamics. Its violation signifies the breakdown of a classical Markov description of temporal correlations. In this work, we establish a direct ...
Quantum optimisation applied to the Quadratic Assignment Problem
Andrew Freeland, Jingbo Wang·Jan 3, 2026
This paper investigates the performance of the emerging non-variational Quantum Walk-based Optimisation Algorithm (NV-QWOA) for solving small instances of the Quadratic Assignment Problem (QAP). NV-QWOA is benchmarked against classical heuristics, th...
Single-Step Hybrid CV-DV Transfer of Multipartite W States Using Cat-State Qubits
Muhammad Nehal Khan, Sumrah Hussain·Jan 3, 2026
We propose a deterministic hybrid continuous-variable-discrete-variable (CV-DV) scheme for the single-step transfer of an $n$-qubit W state encoded in photonic Schr$\ddot{o}$dinger cat-state qubits within a circuit QED architecture. Logical qubits ar...
Comment on arXiv:2511.21731v1: Identifying Quantum Structure in AI Language: Evidence for Evolutionary Convergence of Human and Artificial Cognition
Krzysztof Sienicki·Jan 3, 2026
This note is a friendly technical check of arXiv:2511.21731v1. I highlight a few places where the manuscript's interpretation of (i) the reported CHSH/Bell-type calculations and (ii) Bose--Einstein (BE) fits to rank-frequency data seems to go beyond ...
Minimal length: A source of quantum non-locality
H. Moradpour, S. Jalalzadeh·Jan 3, 2026
The narrow and subtle difference between the Hilbert spaces of operators corresponding to the purely quantum mechanical momentum and the generalized momentum that includes minimal length effects is polished. Additionally, the existence of complex num...
Molchanov's Formula and Quantum Walks: A Probabilistic Approach
Hoang Vu·Jan 3, 2026
This paper establishes a robust link between quantum dynamics and classical ones by deriving probabilistic representation for both continuous time and discrete time quantum walks. We first adapt Molchanov formula, originally employed in the study of ...
Impersonating Quantum Secrets over Classical Channels
Luowen Qian, Mark Zhandry·Jan 3, 2026
We show that a simple eavesdropper listening in on classical communication between potentially entangled quantum parties will eventually be able to impersonate any of the parties. Furthermore, the attack is efficient if one-way puzzles do not exist. ...
Ground State and Collective Modes of Bose-Einstein Condensates in Newtonian and MOND-inspired gravitational potentials
Ning Liu·Jan 3, 2026
We analytically and numerically study the ground state and collective dynamics of Bose-Einstein condensates in two traps: a Newtonian potential and a logarithmic potential inspired by Modified Newtonian Dynamics (MOND). In the ground state, the MOND ...
Silicon-on-sapphire metasurfaces generate arrays of dark and bright traps for neutral atoms
Chengyu Fang, Minjeong Kim, Hongyan Mei +10 more·Jan 3, 2026
We demonstrated crystalline silicon-on-sapphire (c-SOS) metasurfaces that convert a Gaussian beam into arrays of complex optical traps, including arrays of optical bottle beams that trap atoms in dark regions interleaved with bright tweezer arrays. T...
A System Architecture for Low Latency Multiprogramming Quantum Computing
Yilun Zhao, Yu Chen, Kaiyan Chang +4 more·Jan 3, 2026
As quantum systems scale, Multiprogramming Quantum Computing (MPQC) becomes essential to improve device utilization and throughput. However, current MPQC pipelines rely on expensive online compilation to co-optimize concurrently running programs, bec...
Byzantine-Robust Federated Learning Framework with Post-Quantum Secure Aggregation for Real-Time Threat Intelligence Sharing in Critical IoT Infrastructure
Milad Rahmati, Nima Rahmati·Jan 3, 2026
The proliferation of Internet of Things devices in critical infrastructure has created unprecedented cybersecurity challenges, necessitating collaborative threat detection mechanisms that preserve data privacy while maintaining robustness against sop...
Post-Quantum Cryptography for Intelligent Transportation Systems: An Implementation-Focused Review
Abdullah Al Mamun, Akid Abrar, Mizanur Rahman +2 more·Jan 3, 2026
As quantum computing advances, the cryptographic algorithms that underpin confidentiality, integrity, and authentication in Intelligent Transportation Systems (ITS) face increasing vulnerability to quantum-enabled attacks. To address these risks, gov...
Improved decoding algorithms for surface codes under independent bit-flip and phase-flip errors
Louay Bazzi·Jan 2, 2026
We study exact decoding for the toric code and for planar and rotated surface codes under the standard independent \(X/Z\) noise model, focusing on Separate Minimum Weight (SMW) decoding and Separate Most Likely Coset (SMLC) decoding. For the SMW dec...
Four-Photon Interference with a High-Efficiency Quantum Dot Source
Alistair J. Brash, Luke Brunswick, Mark R. Hogg +6 more·Jan 2, 2026
While two-photon Hong-Ou-Mandel interference visibility has become a standard metric for single-photon sources, many optical quantum technologies require the generation and manipulation of larger photonic states. To date, efficiency limitations have ...
Is the Conventional Picture of Coherence Time Complete? Dark Matter Recoherence
Chaitanya Paranjape, Gilad Perez, Wolfram Ratzinger +1 more·Jan 2, 2026
The local solar gravitational potential forms a basin for ultralight dark matter (ULDM), with discrete energy levels. Even if barely populated, it introduces a new characteristic timescale in DM dynamics. This necessitates a generalization of the not...