Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Performance Comparison of Gate-Based and Adiabatic Quantum Computing for AC Power Flow Problem
Zeynab Kaseb, Matthias Moller, Peter Palensky +1 more·Oct 15, 2025
We present the first direct comparison between gate-based quantum computing (GQC) and adiabatic quantum computing (AQC) paradigms for solving the AC power flow (PF) equations. The PF problem is reformulated as a combinatorial optimization problem. Fo...
Hybrid light-matter boundaries of graphene in a chiral cavity
Volker Karle, Oriana K. Diessel, Vasil Rokaj +1 more·Oct 15, 2025
Recent advances in chiral cavities that can couple coherently to two-dimensional materials have opened a powerful route to reshape electronic topology without an external drive. Here we establish the bulk-boundary correspondence for graphene embedded...
An Industry-Academia Partnership for Advancing Quantum Frontiers: Perspective from the U.S. Center for Quantum Technologies
David Stewart, Gerardo Ortiz, Peter M. Kogge +2 more·Oct 15, 2025
The U.S. Center for Quantum Technologies (CQT) is a multi-university consortium established under the National Science Foundation's (NSF) Industry-University Cooperative Research Centers (IUCRC) program. Led jointly by Purdue University, Indiana Univ...
Efficient lambda-enhanced gray molasses using an EIT-based laser locking scheme
Timothy Leese, Siobhan Patrick, Silvia Bergamini +1 more·Oct 15, 2025
We present a novel implementation of lambda-enhanced gray molasses cooling in a non-standard beam geometry and with an inexpensive laser locking set-up. In contrast to the established use of resource-intensive phase locking methods, our laser system ...
Quantum Approximate Optimization Algorithm for Maximum Likelihood Detection in Massive MIMO
Yuxiang Liu, Fanxu Meng, Zetong Li +2 more·Oct 15, 2025
In the massive multiple-input and multiple-output (Massive MIMO) systems, the maximum likelihood (ML) detection problem is NP-hard and becoming classically intricate with the number of the transmitting antennas and the symbols increasing. The quantum...
Homodyne Measurement of a Non-Hermitian Qubit Undergoing Fluorescence
Roson Nongthombam, Amarendra K. Sarma·Oct 15, 2025
Implementation of a two-level non-Hermitian qubit via post-selection of a three-level system has been demonstrated. The post-selection procedure, which discards quantum jump to the ground-state manifold while retaining excitations in the first and se...
Hybrid Boson Sampling-Neural Network Architecture for Enhanced Classification
Mohammad Sharifian, Abolfazl Bayat·Oct 15, 2025
Demonstration of quantum advantage for classical machine learning tasks remains a central goal for quantum technologies and artificial intelligence. Two major bottlenecks to this goal are the high dimensionality of practical datasets and limited perf...
Equivalence of Genuine Multipartite Entanglement and Nonlocality of Nearly Symmetric Multiqubit Pure States
Jakub Wójcik, Wojciech Bruzda, Ignacy Stachura +1 more·Oct 15, 2025
Whether every pure genuinely multipartite entangled (GME) state necessarily exhibits genuine multipartite nonlocality (GMNL) remains an open question. By combining a recently proposed Bell inequality [I. Stachura \textit{et al.}, \href{https://iopsci...
Agency cannot be a purely quantum phenomenon
Emily C. Adlam, Kelvin J. McQueen, Mordecai Waegell·Oct 15, 2025
What are the physical requirements for agency? We investigate whether a purely quantum system (one evolving unitarily in a coherent regime without decoherence or collapse) can satisfy three minimal conditions for agency: an agent must be able to crea...
Altruistic Ride Sharing: A Framework for Fair and Sustainable Urban Mobility via Peer-to-Peer Incentives
Divyanshu Singh, Ashman Mehra, Kavya Makwana +2 more·Oct 15, 2025
Urban mobility systems face persistent challenges of congestion, underutilized vehicles, and rising emissions driven by private point-to-point commuting. Although ride-sharing platforms exist, their profit-driven incentive structures often fail to al...
Social Laser Theory as a Natural Extension of Quantum-Like Modeling
Andrei Khrennikov·Oct 15, 2025
This paper presents a comprehensive review of the Social Laser Theory (SLT) as a natural extension of the broader framework of Quantum-Like Modeling (QLM). While QLM applies the mathematical formalism of quantum theory . such as Hilbert space represe...
Observation of Nonlinear Spin Dynamics in Dual-Cell Atomic Gases
Xiaofan Wang, Haitao Lu, Hengyan Wang +2 more·Oct 15, 2025
Nonlinear spin systems exhibit rich and exotic dynamical phenomena, offering promising applications ranging from spin masers and time crystals to precision measurement. Recent theoretical work [T. Wang et al., Commun. Phys. 8, 41 (2025)] predicted in...
Entropic uncertainty and coherence in Einstein-Gauss-Bonnet gravity
Wen-Mei Li, Jianbo Lu, Shu-Min Wu·Oct 15, 2025
We investigate tripartite quantum-memory-assisted entropic uncertain and quantum coherence for GHZ and W states of a fermionic field in the background of a spherically symmetric black hole of Einstein-Gauss-Bonnet (EGB) gravity. Two distinct scenario...
Autler-Townes spectroscopy of a Rydberg ladder
Tai Xiang, Yue-Hui Lu, Jacquelyn Ho +3 more·Oct 15, 2025
Ladder-type two-photon excitation of an atom from a ground state $|g\rangle$, to an intermediate excited state $|e\rangle$, and, finally, to a Rydberg state $|r\rangle$, has a variety of uses from quantum information to sensing. A common scheme for d...
Quantum Dynamics, Master Equation and Equilibrium for a Qubit Coupled to a Thermal Boson Field
Hiromichi Nakazato, Saverio Pascazio·Oct 15, 2025
We analytically derive the exact -- though formal -- master equation for a two-level quantum system (qubit) interacting with a bosonic environment within the rotating-wave approximation, assuming the environment is initially in an arbitrary thermal s...
Software-enhanced simultaneous quantum-classical communication protocol with Gaussian post-selection
Ozlem Erkilic, Biveen Shajilal, Nicholas Zaunders +1 more·Oct 15, 2025
Simultaneous quantum-classical communication (SQCC) protocols offer a practical approach to continuous-variable quantum key distribution (CV-QKD) by encoding quantum and classical signals onto the same optical pulse. However, like most QKD protocols,...
Breaking On/Off-coupling Loss Degeneracies via Bidirectional Nonlinear Optics
Bo-Han Wu, Mahmoud Jalali Mehrabad, Mengjie Yu +1 more·Oct 15, 2025
Accurate evaluation of nonlinear photonic integrated circuits requires separating input and output coupling efficiencies (i.e., $η_1$ and $η_2$), yet the conventional linear-transmission calibration method recovers only their product (i.e., $η_1\,η_2...
Optimal key rates for quantum key distribution with partial source characterization
Margarida Pereira, Guillermo Currás-Lorenzo, Mateus Araújo·Oct 15, 2025
Numerical security proofs based on conic optimization are known to deliver optimal secret-key rates, but so far they have mostly assumed that the emitted states are fully characterized. In practice, this assumption is unrealistic, since real devices ...
Imperative Quantum Programming with Ownership and Borrowing in Guppy
Mark Koch, Agustín Borgna, Craig Roy +4 more·Oct 15, 2025
Linear types enforce no-cloning and no-deleting theorems in functional quantum programming. However, in imperative quantum programming, they have not gained widespread adoption. This work aims to develop a quantum type system that combines ergonomic ...
Macroscopic Self-Trapping and Dynamical Phase Transition in Momentum Space Bose-Einstein Condensates
Colby Schimelfenig, Federico Serrano, Corey Halverson +3 more·Oct 15, 2025
Self-trapping is a hallmark phenomenon of nonlinear dynamics. It has significant applications in modern physics, including band structure engineering, phase transition dynamics, quantum metrology, and more. Dilute-gas Bose-Einstein condensates (BECs)...