Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum speed limit for observables from quantum asymmetry
Agung Budiyono, Michael Moody, Hadyan L. Prihadi +2 more·Nov 20, 2025
Quantum asymmetry and coherence are genuinely quantum resources that are essential to realize quantum advantage in information technologies. However, all quantum processes are fundamentally constrained by quantum speed limits, which raises the questi...
Optimizing Quantum Key Distribution Network Performance using Graph Neural Networks
Akshit Pramod Anchan, Ameiy Acharya, Leki Chom Thungon·Nov 20, 2025
This paper proposes an optimization of Quantum Key Distribution (QKD) Networks using Graph Neural Networks (GNN) framework. Today, the development of quantum computers threatens the security systems of classical cryptography. Moreover, as QKD network...
Identifying the $3$-qubit $W$ state with quantum uncertainty relation
Zhi-Jie Liu, Hao-Nan Qiang, Jie Zhou +2 more·Nov 20, 2025
The $W$ state, a canonical representative of multipartite quantum entanglement, plays a crucial role in quantum information science due to its robust entanglement properties. Quantum uncertainty relations, on the other hand, are a fundamental corners...
Exceptional-Point-Induced Sensitivity-Robustness Phase Transition in Quantum Interference
Xing Lin, Shuang Zhang·Nov 20, 2025
Quantum interference underpins many quantum information protocols but is typically studied in lossless Hermitian systems. Here, we reveal an exceptional point induced phase transition in two photon Hong Ou Mandel interference within a lossy coupled w...
Tripartite Entanglement Generation in Atom-Coupled Dual Microresonators System
Abhishek Mandal, Joy Ghosh, Maruthi Manoj Brundavanam +1 more·Nov 20, 2025
In this work, we investigate the emergence and control of genuine tripartite entanglement in a hybrid cavity quantum electrodynamics architecture consisting of two linearly coupled single mode resonators, one of which interacts coherently with a two ...
On-chip Time-bin to Path Qubit Encoding Converter via Thin Film Lithium Niobate Photonics Chip
Xiaosong Ren, Zhanping Jin, Xiaotong Zou +6 more·Nov 20, 2025
The development of quantum internet demands on-chip quantum processor nodes and interconnection between the nodes. Path-encoded photonic qubits are suitable for on-chip quantum information processors, while time-bin encoded ones are good at long-dist...
TRAM: A Transverse Relaxation Time-Aware Qubit Mapping Algorithm for NISQ Devices
Yifei Huang, Pascal Jahan Elahi, Ugo Varetto +3 more·Nov 20, 2025
Noisy intermediate-scale quantum (NISQ) devices impose dual challenges on quantum circuit execution: limited qubit connectivity requires extensive SWAP-gate routing, while time-dependent decoherence progressively degrades quantum information. Existin...
A Graph-Theoretic Approach to Quantum Measurement Incompatibility
Daniel McNulty·Nov 20, 2025
Measurement incompatibility--the impossibility of jointly measuring certain quantum observables--is a fundamental resource for quantum information processing. We develop a graph-theoretic framework for quantifying this resource for large families of ...
Engineering multi-mode bosonic squeezed states using Monte-Carlo optimization
Jieqiu Shao, Diego A. R. Dalvit, Lukasz Cincio +1 more·Nov 19, 2025
Bosonic systems, such as photons and ultracold atoms, have played a central role in demonstrating quantum-enhanced sensing. Quantum entanglement, through squeezed and GHZ states, enables sensing beyond classical limits. However, such a quantum advant...
Experimental demonstration of non-local magic in a superconducting quantum processor
Halima Giovanna Ahmad, Gianluca Esposito, Viviana Stasino +9 more·Nov 19, 2025
Magic is a non-classical resource whose efficient manipulation is fundamental to advancing efficient and scalable fault-tolerant quantum computing. Quantum advantage is possible only if both magic and entanglement are present. Of particular interest ...
Design and Optimization of Adaptive Diversity Schemes in Quantum MIMO Channels
Shehbaz Tariq, Symeon Chatzinotas·Nov 19, 2025
As quantum networks evolve toward a full quantum Internet, reliable transmission in quantum multiple-input multiple-output (QuMIMO) settings becomes essential, yet remains difficult due to noise, crosstalk, and the mixing of quantum information acros...
Fidelity-Preserving Quantum Encoding for Quantum Neural Networks
Yuhu Lu, Jinjing Shi·Nov 19, 2025
Efficiently encoding classical visual data into quantum states is essential for realizing practical quantum neural networks (QNNs). However, existing encoding schemes often discard spatial and semantic information when adapting high-dimensional image...
QADR: A Scalable, Quantum-Resistant Protocol for Anonymous Data Reporting
Nilesh Vyas, Konstantin Baier·Nov 19, 2025
The security of future large-scale IoT networks is critically threatened by the ``Harvest Now, Decrypt Later'' (HNDL) attack paradigm. Securing the massive, long-lived data streams from these systems requires protocols that are both quantum-resistant...
Selective Shuttling of Electrons on Helium Using a CMOS Control Platform
K. Castoria, H. Byeon, N. Beysengulov +5 more·Nov 19, 2025
Electrons bound to the surface of liquid helium are an emerging quantum computing platform, offering the potential for highly mobile spin qubits that can be manipulated using CMOS-fabricated devices. Here, as a step toward realizing this technology, ...
Optimus-Q: Utilizing Federated Learning in Adaptive Robots for Intelligent Nuclear Power Plant Operations through Quantum Cryptography
Sai Puppala, Ismail Hossain, Jahangir Alam +1 more·Nov 19, 2025
The integration of advanced robotics in nuclear power plants (NPPs) presents a transformative opportunity to enhance safety, efficiency, and environmental monitoring in high-stakes environments. Our paper introduces the Optimus-Q robot, a sophisticat...
Globalized critical quantum metrology in dynamics of quantum Rabi model by auxiliary nonlinear term
Qiu-Yi Chen, Feng Qiao, Zu-Jian Ying·Nov 18, 2025
Quantum Rabi model (QRM) is a fundamental model for light-matter interactions, the finite-component quantum phase transition (QPT) in the QRM has established a paradigmatic application for critical quantum metrology (CQM). However, such a paradigmati...
Time complexity in preparing metrologically useful quantum states
Carla M. Quispe Flores, Raphael Kaubruegger, Minh C. Tran +3 more·Nov 18, 2025
We investigate the fundamental time complexity, as constrained by Lieb-Robinson bounds, for preparing entangled states useful in quantum metrology. We relate the minimum time to the Quantum Fisher Information ($F_Q$) for a system of $N$ quantum spins...
Using the Schmidt Decomposition to Determine Quantum Entanglement
Lane Boswell, Ying Cao·Nov 18, 2025
Quantum information theory is a rapidly growing area of math and physics that combines two independent theories, quantum mechanics and information theory. Quantum entanglement is a concept that was first proposed in the EPR paradox. In quantum mechan...
Logical Operators and Derived Automorphisms of Tile Codes
Nikolas P. Breuckmann, Shin Ho Choe, Jens Niklas Eberhardt +2 more·Nov 18, 2025
The recently introduced tile codes are a promising alternative to surface codes, combining two-dimensional locality with higher encoding efficiency. While surface codes are well understood in terms of their logical operators and boundary behavior, mu...
Efficient Hamiltonian-aware Quantum Natural Gradient Descent for Variational Quantum Eigensolvers
Chenyu Shi, Hao Wang·Nov 18, 2025
The Variational Quantum Eigensolver (VQE) is one of the most promising algorithms for current quantum devices. It employs a classical optimizer to iteratively update the parameters of a variational quantum circuit in order to search for the ground st...