Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Machine Learning Framework for Efficient Prediction of Quantum Wasserstein Distance
Changchun Feng, Xinyu Qiu, Laifa Tao +1 more·Nov 16, 2025
The quantum Wasserstein distance (W-distance) is a fundamental metric for quantifying the distinguishability of quantum operations, with critical applications in quantum error correction. However, computing the W-distance remains computationally chal...
Optimal Multiparameter Quantum Estimation of Magnonic Couplings in a Magnomechanical Cavity
Adnan Naimy, Abdallah Slaoui, Abderrahim Lakhfif +1 more·Nov 15, 2025
In this work, we introduce an experimentally viable scheme to enhance the simultaneous estimation precision of the couplings $G_{mc}$ and $G_{mb}$, with a particular focus on the performance of heterodyne detection. By comparing simultaneous and indi...
Dyadic-Chaotic Lifting S-Boxes for Enhanced Physical-Layer Security within 6G Networks
Ilias Cherkaoui, Indrakshi Dey·Nov 15, 2025
Sixth-Generation (6G) wireless networks will interconnect billions of resource-constrained devices and time-critical services, where classical, fixed, and heavy cryptography strains latency and energy budgets and struggles against large-scale, pre-co...
QMA Complete Quantum-Enhanced Kyber: Provable Security Through CHSH Nonlocality
Ilias Cherkaoui, Indrakshi Dey·Nov 15, 2025
Post-quantum cryptography (PQC) must secure large-scale communication systems against quantum adversaries where classical hardness alone is insufficient and purely quantum schemes remain impractical. Lattice-based key encapsulation mechanisms (KEMs) ...
An Improved Quantum Anonymous Notification Protocol for Quantum-Augmented Networks
Nitin Jha, Abhishek Parakh, Mahadevan Subramaniam·Nov 15, 2025
The scalability of current quantum networks is limited due to noisy quantum components and high implementation costs, thereby limiting the security advantages that quantum networks provide over their classical counterparts. Quantum Augmented Networks...
The conditional probabilities and the empirical laws in a free scalar QFT in curved spacetime
Hideyasu Yamashita·Nov 15, 2025
Unlike QFT in Minkowski spacetime (QFTM), QFT in curved spacetime (QFTCS) suffers from a conceptual obscurity on the empirical (experimentally verifiable/falsifiable) laws. We propose to employ the notion of prior conditional probabilities to describ...
Entanglement degradation of static black holes in effective quantum gravity
Xiaobao Liu, Wentao Liu, Shu-Min Wu·Nov 15, 2025
Quantum information science has been broadly explored in Einstein gravity and in various modified gravity theories; however, its extension to quantum gravity settings remains largely unexplored. Motivated by this gap, in this paper we investigate the...
Reinforcement Learning for Charging Optimization of Inhomogeneous Dicke Quantum Batteries
Xiaobin Song, Siyuan Bai, Da-Wei Wang +4 more·Nov 15, 2025
Charging optimization is a key challenge to the implementation of quantum batteries, particularly under inhomogeneity and partial observability. This paper employs reinforcement learning to optimize piecewise-constant charging policies for an inhomog...
Hybrid Predictive Quantum Feedback: Extending Qubit Lifetimes Beyond the Wiseman-Milburn Limit
Ali Abu-Nada, Aryan Iliat, Russell Ceballos·Nov 15, 2025
Amplitude damping fundamentally limits qubit lifetimes by irreversibly leaking energy and information into the environment. Standard Wiseman--Milburn feedback offers only modest improvement because it acts on a single measured quadrature and its corr...
Solving a Nonlinear Eigenvalue Equation in Quantum Information Theory: A Hybrid Approach to Entanglement Quantification
Abrar Ahmed Naqash, Fardeen Ahmad Sofi, Mohammad Haris Khan +1 more·Nov 14, 2025
Nonlinear eigenvalue equations arise naturally in quantum information theory, particularly in the variational quantification of entanglement. In this work, we present a hybrid analytical and numerical framework for evaluating the geometric measure of...
Relative entropy for locally squeezed states
Daniela Cadamuro, Markus B. Fröb, Dimitrios Katsinis +1 more·Nov 14, 2025
Relative entropy serves as a fundamental measure of state distinguishability in both quantum information theory and relativistic quantum field theory. Despite its conceptual importance, however, explicit computations of relative entropy remain notori...
Ultrafast quantum gates with fully quantized free-electron quantum optics
Yongcheng Ding·Nov 14, 2025
Free-electron quantum optics provides a versatile platform for manipulating electrons at the quantum level with potential applications in quantum information technologies. We propose a grating-based architecture for fully quantized free-electron quan...
Maximizing the nondemolition nature of a quantum measurement via an adaptive readout protocol
Arjen Vaartjes, Rocky Yue Su, Laura A. O'Neill +15 more·Nov 14, 2025
Quantum error correction (QEC) requires non-invasive measurements for fault tolerant quantum computing. Deviations from ideal quantum non-demolition (QND) measurements can disturb the encoded information. To address this challenge, we develop a reado...
A New Quantum Secure Time Transfer System
Ravi Singh Adhikari, Aman Gupta, Anju Rani +2 more·Nov 13, 2025
High-precision clock synchronization is essential for a wide range of network-distributed applications. In the quantum space, these applications include communication, sensing, and positioning. However, current synchronization techniques are vulnerab...
Query complexities of quantum channel discrimination and estimation: A unified approach
Zixin Huang, Johannes Jakob Meyer, Theshani Nuradha +1 more·Nov 13, 2025
The goal of quantum channel discrimination and estimation is to determine the identity of an unknown channel from a discrete or continuous set, respectively. The query complexity of these tasks is equal to the minimum number of times one must call an...
Certifying the dimensionality of any quantum channel with minimal assumptions
Saheli Mukherjee, Bivas Mallick, Pratik Ghosal·Nov 13, 2025
High-dimensional entanglement offers significant advantages over low-dimensional ones in various information-processing tasks. However, to harness these advantages, it is crucial that the quantum channels used to store or transmit the subsystems of a...
Entanglement boosting: Low-volume logical Bell pair preparation for distributed fault-tolerant quantum computation
Shinichi Sunami, Yutaka Hirano, Toshihide Hinokuma +1 more·Nov 13, 2025
Distributed architecture is a promising route to scaling fault-tolerant quantum computing (FTQC) beyond the inherent limitations of single processors. For practical implementation of distributed FTQC, logical Bell pair preparation must be designed no...
Quantum Algorithms for Computing Maximal Quantum $f$-divergence and Kubo-Ando means
Trung Hoa Dinh, Nhat A. Nghiem·Nov 13, 2025
The development of quantum computation has resulted in many quantum algorithms for a wide array of tasks. Recently, there is a growing interest in using quantum computing techniques to estimate or compute quantum information-theoretic quantities such...
Information phases of partial projected ensembles generated from random quantum states and scrambling dynamics
Alan Sherry, Saptarshi Mandal, Sthitadhi Roy·Nov 13, 2025
The projected ensemble -- an ensemble of pure states on a subsystem conditioned on projective measurement outcomes on its complement -- provides a finer probe of ergodicity and information structure than the reduced density matrix of the subsystem in...
Towards autonomous quantum physics research using LLM agents with access to intelligent tools
Sören Arlt, Xuemei Gu, Mario Krenn·Nov 13, 2025
Artificial intelligence (AI) is used in numerous fields of science, yet the initial research questions and targets are still almost always provided by human researchers. AI-generated creative ideas in science are rare and often vague, so that it rema...