Quantum Brain

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 abstractsPhotonic leads

28,088 papers found

Pump Free Microwave-Optical Quantum Transduction

Fangxin Li, Jaesung Heo, Zhaoyou Wang +3 more·Dec 4, 2025

Distributed quantum computing involves superconducting computation nodes operating at microwave frequencies, which are connected by long-distance transmission lines that transmit photons at optical frequencies. Quantum transduction, which coherently ...

Quantum Physics

Multimode RF Reflectometry for Spin Qubit Readout and Device Characterization

Joffrey Rivard, Alexis Morel, Olivier Romain +10 more·Dec 4, 2025

We introduce a multimode superconducting inductor architecture that enables radio-frequency reflectometry at multiple discrete frequencies up to 2 GHz, addressing limitations of conventional single-mode designs. The spiral inductor's distributed inte...

Mesoscale PhysicsQuantum Physics

Deadline-Aware Scheduling of Distributed Quantum Circuits in Near-Term Quantum Cloud

Nour Dehaini, Christia Chahoud, Mahdi Chehimi·Dec 4, 2025

Distributed quantum computing (DQC) enables scalable quantum computations by distributing large quantum circuits on multiple quantum processing units (QPUs) in the quantum cloud. In DQC, after partitioning quantum circuits, they must be scheduled and...

Quantum Physicscs.NI

Thermodynamic universality across dissipative quantum phase transitions

Laetitia P. Bettmann, Artur M. Lacerda, Mark T. Mitchison +1 more·Dec 4, 2025

We study finite-time driving across second-order dissipative quantum phase transitions described by Lindblad dynamics. We show that the nonadiabatic entropy production, which quantifies deviations from the instantaneous nonequilibrium steady state, e...

Quantum Physicscond-mat.stat-mech

Hybrid Quantum-Classical Autoencoders for Unsupervised Network Intrusion Detection

Mohammad Arif Rasyidi, Omar Alhussein, Sami Muhaidat +1 more·Dec 4, 2025

Unsupervised anomaly-based intrusion detection requires models that can generalize to attack patterns not observed during training. This work presents the first large-scale evaluation of hybrid quantum-classical (HQC) autoencoders for this task. We c...

cs.LGCryptographyQuantum Physics

Meta-Learning for Quantum Optimization via Quantum Sequence Model

Yu-Cheng Lin, Yu-Chao Hsu, Samuel Yen-Chi Chen·Dec 4, 2025

The Quantum Approximate Optimization Algorithm (QAOA) is a leading approach for solving combinatorial optimization problems on near-term quantum processors. However, finding good variational parameters remains a significant challenge due to the non-c...

Quantum PhysicsAIcs.LG

High Fidelity Qubit Control in a Natural Si-MOS Quantum Dot using a 300 mm Silicon on Insulator Wafer

Xander Peetroons, Xunyao Luo, Tsung-Yeh Yang +26 more·Dec 4, 2025

We demonstrate high-fidelity single qubit control in a natural Si-MOS quantum dot fabricated in an industrial 300 mm wafer process on a silicon on insulator (SOI) wafer using electron spin resonance. A relatively high optimal Rabi frequency of 5 MHz ...

Mesoscale PhysicsQuantum Physics

QKAN-LSTM: Quantum-inspired Kolmogorov-Arnold Long Short-term Memory

Yu-Chao Hsu, Jiun-Cheng Jiang, Chun-Hua Lin +5 more·Dec 4, 2025

Long short-term memory (LSTM) models are a particular type of recurrent neural networks (RNNs) that are central to sequential modeling tasks in domains such as urban telecommunication forecasting, where temporal correlations and nonlinear dependencie...

Quantum PhysicsAIcs.LG

Expanding the Neutral Atom Gate Set: Native iSWAP and Exchange Gates from Dipolar Rydberg Interactions

Pedro Ildefonso, Andrew Byun, Aleksei Konovalov +3 more·Dec 4, 2025

We present a native realization of iSWAP and parameterized exchange gates for neutral atom quantum processing units. Our approach leverages strong dipole-dipole interactions between two dipole-coupled Rydberg states, and employs optimal control techn...

Quantum Physics

Tractatus Quanticum

Niccolò Covoni, Carlo Rovelli·Dec 4, 2025

This is a re-editing, which takes quantum mechanics into account, of Wittgenstein's famous Tractatus. The operation has a playful side in the form, but is a serious attempt to capture possible philosophical implications of the Relational Interpretati...

Quantum Physicsphysics.hist-ph

Emergence of ER=EPR from non-local gravitational energy

Kimet Jusufi, Francisco S. N. Lobo, Emmanuel N. Saridakis +1 more·Dec 4, 2025

We construct a class of wormhole geometries supported by the non-local gravitational self-energy that regularizes the particle and black-hole sectors of spacetime. Using this framework, inspired by T-duality, we show that two entangled particles (or ...

gr-qchep-thQuantum Physics

The Magnus expansion in relativistic quantum field theory

Andreas Brandhuber, Graham R. Brown, Paolo Pichini +2 more·Dec 4, 2025

We investigate the Magnus expansion of the $N$-operator in relativistic quantum field theory, which is related to the $S$-matrix via $S = e^{iN}$. We develop direct methods to compute matrix elements of the $N$-operator, which we refer to as Magnus a...

hep-thQuantum Physics

Transverse response from anisotropic Fermi surfaces

Abhiram Soori·Dec 4, 2025

We demonstrate that an anisotropic and rotated Fermi surface can generate a finite transverse response in electron transport, even in the absence of a magnetic field or Berry curvature. Using a two-dimensional continuum model, we show that broken $k_...

Mesoscale PhysicsQuantum Physics

Quantum open system description of a hybrid plasmonic cavity

Marco Vallone·Dec 4, 2025

We present a unified quantum open system framework for lossy plasmonic cavities in which coherent dynamics, relaxation, dephasing, and irreversible absorption are treated on equal footing. The Dyson equation for the cavity photon propagator in the ra...

physics.opticsMesoscale PhysicsQuantum Physics

Introduction to quantum control: From basic concepts to applications in quantum technologies

Christiane P. Koch·Dec 4, 2025

Quantum control refers to our ability to manipulate quantum systems. This tutorial-style chapter focuses on the use of classical electromagnetic fields to steer the system dynamics. In this approach, the quantum nature of the control stems solely fro...

Quantum Physics

Operator Formalism for Laser-Plasma Wakefield Acceleration

Mostafa Behtouei, Carlos Salgado Lopez, Giancarlo Gatti·Dec 4, 2025

In this paper, we develop an operator-based framework for laser--plasma wakefield acceleration (LPWA) in capillary discharges, providing a compact and systematic description of the coupled dynamics of laser fields and plasma response. The formalism e...

physics.plasm-phMathematical Physicsphysics.acc-phQuantum Physics

Convergence of sample-based quantum diagonalization on a variable-length cuprate chain

L. Andrew Wray, Cheng-Ju Lin, Vincent Su +1 more·Dec 4, 2025

Sample-based quantum diagonalization (SQD) is an algorithm for hybrid quantum-classical molecular simulation that has been of broad interest for application with noisy intermediate scale quantum (NISQ) devices. However, SQD does not always converge o...

Quantum Physicscond-mat.otherphysics.chem-phphysics.comp-ph

Circuit Quantum Acoustodynamics in a Scalable Phononic Integrated Circuit Architecture

Weiting Wang, Lintao Xiao, Bo Zhang +11 more·Dec 4, 2025

Previous demonstrations of quantum acoustic systems have been limited to isolated devices, with limited capability to route phonons and interconnect multi-port acoustic elements for further extension. Here, we demonstrate a scalable architecture for ...

Quantum Physics

Exploring vibronic dynamics near a sloped conical intersection with trapped Rydberg ions

Abdessamad Belfakir, Weibin Li·Dec 4, 2025

We study spin-phonon coupled dynamics in the vicinity of a sloped conical intersection created by laser coupling the electronic (spin) and vibrational degrees of freedom of a pair of trapped Rydberg ions. We show that the shape of the potential energ...

Atomic PhysicsQuantum Physics

The swap transpose on couplings translates to Petz' recovery map on quantum channels

Gergely Bunth, József Pitrik, Tamás Titkos +1 more·Dec 4, 2025

In [Ann. Henri Poincaré, {\bf 22} (2021), 3199-3234], De Palma and Trevisan described a one-to-one correspondence between quantum couplings and quantum channels realizing transport between states. The aim of this short note is to demonstrate that tak...

Mathematical Physicsmath.OAQuantum Physics
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