Papers
Live trends in quantum computing research, updated daily from arXiv.
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13,292 papers in 12 months (+5% vs prior quarter)
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
The utility of noiseless linear amplification and attenuation in single-rail discrete-variable quantum communications
Ozlem Erkilic, Aritra Das, Angela A. Baiju +3 more·Dec 9, 2025
Quantum communication offers many applications, with teleportation and superdense coding being two of the most fundamental. In these protocols, pre-shared entanglement enables either the faithful transfer of quantum states or the transmission of more...
Direct Generation of an Array with 78400 Optical Tweezers Using a Single Metasurface
Yuqing Wang, Yuxuan Liao, Tao Zhang +9 more·Dec 9, 2025
Scalability remains a major challenge in building practical fault-tolerant quantum computers. Currently, the largest number of qubits achieved across leading quantum platforms ranges from hundreds to thousands. In atom arrays, scalability is primaril...
Large-scale Lindblad learning from time-series data
Ewout van den Berg, Brad Mitchell, Ken Xuan Wei +1 more·Dec 9, 2025
In this work, we develop a protocol for learning a time-independent Lindblad model for operations that can be applied repeatedly on a quantum computer. The protocol is highly scalable for models with local interactions and is in principle insensitive...
Device/circuit simulations of silicon spin qubits based on a gate-all-around transistor
Tetsufumi Tanamoto, Keiji Ono·Dec 9, 2025
We theoretically investigated the readout process of a spin--qubit structure based on a gate-all-around (GAA) transistor. Our study focuses on a logical qubit composed of two physical qubits. Different spin configurations result in different charge d...
Detecting quantum many-body states with imperfect measuring devices
K. Uriostegui, C. Pineda, C. Chryssomalakos +2 more·Dec 9, 2025
We study a coarse-graining map arising from incomplete and imperfect addressing of particles in a multipartite quantum system. In its simplest form, corresponding to a two-qubit state, the resulting channel produces a convex mixture of the two partia...
The strength of weak coupling
Alastair Kay, Christino Tamon·Dec 9, 2025
A paradoxical idea in quantum transport is that attaching weakly-coupled edges to a large base graph creates high-fidelity quantum state transfer. We provide a mathematical treatment that rigorously prove this folklore idea. Our proofs are elementary...
Pulse Shape Discrimination for Germanium Detectors using Variational Quantum Circuits
F. Napolitano·Dec 9, 2025
Pulse shape discrimination (PSD) is a critical component in background rejection for neutrinoless double-beta decay and dark matter searches using Broad Energy Germanium (BEGe) detectors. To date, advanced discrimination has relied on Deep Learning a...
On the Emergence of Time and Space in Closed Quantum Systems
Tommaso Favalli·Dec 8, 2025
Time, space and entanglement are the main characters in this work. Their nature is still a great mystery in physics and we study here the possibility that these three phenomena are closely connected, showing how entanglement can be at the basis of th...
Quantum Monte Carlo in Classical Phase Space with the Wigner-Kirkwood Commutation Function. Results for the Saturation Liquid Density of $^4$He
Phil Attard·Dec 8, 2025
A Metropolis Monte Carlo algorithm is given for the case of a complex phase space weight, which applies generally in quantum statistical mechanics. Computer simulations using Lennard-Jones $^4$He near the $λ$-transition, including an expansion to thi...
Ab initio study of highly charged ion-induced Coulomb explosion imaging
Misa Viveiros, Samuel S. Taylor, Cody Covington +1 more·Dec 8, 2025
We present a theoretical investigation of ion-induced Coulomb explosion imaging (CEI) of pyridazine molecules driven by energetic C$^{5+}$ projectiles, using time-dependent density-functional theory (TDDFT) with Ehrenfest nuclear dynamics. By systema...
Moire-Engineered Ferroelectric Transistors for Nearly Trap-free, Low-Power and Non-Volatile 2D Electronics
Arup Singha, Shaili Sett, Kenji Watanabe +3 more·Dec 8, 2025
Long-range moire patterns in twisted WSe2 enable a built-in, moire-length-scale ferroelectric polarization that can be directly harnessed in electronic devices. Such a built-in ferroic landscape offers a compelling means to enable ultralow-voltage an...
Deterministic Equations for Feedback Control of Open Quantum Systems II: Properties of the memory function
Alberto J. B. Rosal, Patrick P. Potts, Gabriel T. Landi·Dec 8, 2025
Feedback uses past detection outcomes to dynamically modify a quantum system and is central to quantum control. These outcomes can be stored in a memory, defined as a stochastic function of past measurements. In this work, we investigate the main pro...
On Dirac-type correlations
James Fullwood, Boyu Yang·Dec 8, 2025
Quantum correlations often defy an explanation in terms of fundamental notions of classical physics, such as causality, locality, and realism. While the mathematical theory underpinning quantum correlations between spacelike separated systems has bee...
Coherent and compact van der Waals transmon qubits
Jesse Balgley, Jinho Park, Xuanjing Chu +9 more·Dec 8, 2025
State-of-the-art superconducting qubits rely on a limited set of thin-film materials. Expanding their materials palette can improve performance, extend operating regimes, and introduce new functionalities, but conventional thin-film fabrication hinde...
Observation of a Topological Berry Phase with a Single Phonon in an Ion Microtrap Array
Justin F. Niedermeyer, Nathan K. Lysne, Katherine C. McCormick +11 more·Dec 8, 2025
Controlled quantum mechanical motion of trapped atomic ions can be used to simulate and explore collective quantum phenomena and to process quantum information. Groups of cold atomic ions in an externally applied trapping potential self-organize into...
F2: Offline Reinforcement Learning for Hamiltonian Simulation via Free-Fermionic Subroutine Compilation
Ethan Decker, Christopher Watson, Junyu Zhou +5 more·Dec 8, 2025
Compiling shallow and accurate quantum circuits for Hamiltonian simulation remains challenging due to hardware constraints and the combinatorial complexity of minimizing gate count and circuit depth. Existing optimization method pipelines rely on han...
Classical and quantum dynamics of a particle confined in a paraboloidal cavity
Ángel E. Reyna-Cruz, Julio C. Gutiérrez-Vega·Dec 8, 2025
We present a classical and quantum analysis of a particle confined in a three-dimensional paraboloidal cavity formed by two confocal paraboloids. Classically, the system is integrable and presents three independent constants of motion, namely, the en...
Information-Theoretic Analysis of Weak Measurements and Their Reversal
Luis D. Zambrano Palma, Yusef Maleki, M. Suhail Zubairy·Dec 8, 2025
We study trade-off relations in information extraction from quantum systems subject to null-result weak measurements, where the absence of a detected photon continuously updates the system state. We present a detailed analysis of qubit and qutrit sys...
Resonant and Stochastic Vibration in Neurorehabilitation
Ava Hays, Nolan Kosnic, Ryan Miller +1 more·Dec 8, 2025
Neurological injuries and age-related decline can impair sensory processing and disrupt motor coordination, gait, and balance. As mechanisms of neuroplasticity have become better understood, vibration-based interventions have gained attention as pote...
Entanglement Through Topological Defects: Reconciling Theory with Numerics
Christian Northe, Paolo Rossi·Dec 8, 2025
Present theoretical predictions for the entanglement entropy through topological defects are violated by numerical simulations. In order to resolve this, we introduce a paradigm shift in the preparation of reduced density matrices in the presence of ...