Quantum Brain

Papers

Live trends in quantum computing research, updated daily from arXiv.

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12,931 papers in 12 months (-5% vs prior quarter)

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Papers by research theme (12 months). Hover for details.

Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

1,571 papers found

Laser-induced modulation of conductance in graphene with magnetic barriers

Rachid El Aitouni, Miloud Mekkaoui, Pablo Díaz +2 more·Dec 3, 2025

We study how electrons move across a graphene sheet when it encounters two magnetic barriers with a region in between that is continuously driven by laser light. Rather than acting as a static obstacle, this illuminated middle section becomes a Floqu...

Mesoscale PhysicsQuantum Physics

Quantum Simulations of Opinion Dynamics

Xingyu Guo, Xiaoyang Wang, Lingxiao Wang·Dec 3, 2025

Consensus formation is a central problem in collective behavior. In this work, we develop quantum models of opinion dynamics that can be exactly solved and implemented on current quantum hardware. By exploiting quantum superposition, measurement-indu...

physics.soc-phQuantum Physics

Numerical simulation of coherent spin-shuttling in a QuBus with charged defects

Nils Ciroth, Arnau Sala, Ran Xue +4 more·Dec 3, 2025

Recent advances in coherent conveyor-mode spin qubit shuttling are paving the way for large-scale quantum computing platforms with qubit connectivity achieved by spin qubit shuttles. We developed a simulation tool to investigate numerically the impac...

Mesoscale PhysicsQuantum Physics

Quantum Hash Function Based on Spectral Properties of Graphs and Discrete Walker Dynamics

Mohana Priya Thinesh Kumar, Pranavishvar Hariprakash·Dec 3, 2025

We present Quantum Graph Hash (QGH-256), a novel quantum spectral hashing algorithm that generates high-entropy fingerprints from message-induced graphs. Each input message is mapped to a weighted graph via a discrete random walk on an n X n toroidal...

Quantum Physics

Beyond Lindblad Dynamics: Rigorous Guarantees for Thermal and Ground State Preservation under System Bath Interactions

Ke Wang, Zhiyan Ding·Dec 3, 2025

We establish new theoretical results demonstrating the efficiency and robustness of system bath interaction models for quantum thermal and ground state preparation. Unlike prior analyses, which typically relies on the Lindblad limit and require vanis...

Quantum Physics

Hybridized-Mode Parametric Amplifier in Kinetic-Inductance Circuits

Danial Davoudi, Abdul Mohamed, Shabir Barzanjeh·Dec 3, 2025

Parametric amplification is essential for quantum measurement, enabling the amplification of weak microwave signals with minimal added noise. While Josephson-junction-based amplifiers have become standard in superconducting quantum circuits, their ma...

Quantum Physicscond-mat.supr-con

The Pound-Drever-Hall Method for Superconducting-Qubit Readout

Ibukunoluwa Adisa, Won Chan Lee, Kevin C. Cox +1 more·Dec 2, 2025

Scaling quantum computers to large sizes requires the implementation of many parallel qubit readouts. Here we present an ultrastable superconducting-qubit readout method using the multi-tone self-phase-referenced Pound-Drever-Hall (PDH) technique, or...

Quantum Physics

Experimental Blueprint for Distinguishing Decoherence from Objective Collapse

Ridha Horchani·Dec 2, 2025

The transition from the quantum to the classical realm remains one of the most profound open questions in physics. While quantum theory predicts the existence of macroscopic superpositions, their apparent absence in the everyday world is attributed e...

Quantum Physics

Phononic Casimir Effect in Planar Materials

Pablo Rodriguez-Lopez, Dai-Nam Le, Lilia M. Woods·Dec 2, 2025

The Phononic Casimir effect between planar objects is investigated by deriving a formalism from the quantum partition function of the system following multiscattering approach. This fluctuation-induced coupling is mediated by phonons modeled as an ef...

Quantum PhysicsMesoscale Physics

Observation of non-Hermitian many-body phase transition in a Rydberg-atom array

Yao-Wen Zhang, Biao Xu, Yijia Zhou +8 more·Dec 2, 2025

Non-Hermitian quantum mechanics with parity-time (PT) symmetry offers a powerful framework for exploring the complex interplay of dissipation and coherent interactions in open quantum systems. While PT-symmetry breaking has been studied in various ph...

Quantum PhysicsAtomic Physics

Quantum Coulomb drag signatures of Majorana bound states

Zi-Wei Li, Jiaojiao Chen, Wei Xiong +2 more·Dec 2, 2025

Majorana bound states (MBSs), with their non-Abelian statistics and topological protection, are key candidates for fault-tolerant quantum computation. However, their unambiguous identification in solid-state systems remains a fundamental challenge. H...

Mesoscale PhysicsQuantum Physics

Magnetoelectric effect in the mixed valence polyoxovanadate cage V$_{12}$

Piotr Kozłowski·Dec 1, 2025

Development of spintronic and quantum computing devices increases demand for efficient, energy saving method of spin manipulation at molecular scale. Polyoxovanadate molecular magnets being susceptible to both electric and magnetic fields may serve h...

Mesoscale Physicscond-mat.mtrl-sciphysics.chem-phQuantum Physics

The measurement-induced phase transition in strongly disordered spin chains

Yicheng Tang, Pradip Kattel, Arijeet Pal +2 more·Dec 1, 2025

We investigate the dynamics of strongly disordered spin chains in the presence of random local measurements. By studying the transverse-field Ising model with a site-dependent random longitudinal field and an effective $l$-bit many-body localized Ham...

cond-mat.dis-nncond-mat.stat-mechQuantum Physics

Confinement-Induced Resonances in Rabi-Coupled Bosonic Mixtures

Andrea Tononi, Pietro Massignan·Dec 1, 2025

We consider coherently-coupled bosonic mixtures scattering at low energies in the presence of an external confinement along either one or two directions. We exactly solve the two-body scattering problem, showing that for large Rabi coupling the confi...

cond-mat.quant-gasQuantum Physics

Folded optimal transport and its application to separable quantum optimal transport

Thomas Borsoni·Dec 1, 2025

We introduce folded optimal transport, as a method to extend a cost or distance defined on the extreme boundary of a convex to the whole convex, related to convex extension. This construction broadens the framework of standard optimal transport, foun...

math.FAMathematical PhysicsQuantum Physics

A Three-Dimensional Array of Quantum Dots

Hanifa Tidjani, Dario Denora, Michael Chan +6 more·Dec 1, 2025

Quantum dots can confine single electrons or holes to define spin qubits that can be operated with high fidelity. Experimental work has progressed from linear to two-dimensional arrays of quantum dots, enabling qubit interactions that are essential f...

Mesoscale PhysicsQuantum Physics

Data-Driven Learnability Transition of Measurement-Induced Entanglement

Dongheng Qian, Jing Wang·Dec 1, 2025

Measurement-induced entanglement (MIE) captures how local measurements generate long-range quantum correlations and drive dynamical phase transitions in many-body systems. Yet estimating MIE experimentally remains challenging: direct evaluation requi...

Quantum Physicscond-mat.dis-nnAI

Experimental Witness of Quantum Jump Induced High-Order Liouvillian Exceptional Points

Zhuo-Zhu Wu, Pei-Dong Li, Tai-Hao Cui +11 more·Dec 1, 2025

The exceptional point has presented considerably interesting and counterintuitive phenomena associated with nonreciprocity, precision measurement, and topological dynamics. The Liouvillian exceptional point (LEP), involving the interplay of energy lo...

Quantum Physics

Formulations of Quantum Thermodynamics and Applications in Open Systems

J. M. Z. Choquehuanca·Nov 30, 2025

Quantum thermodynamics has emerged as a central field for understanding how energy conversion processes occur in microscopic systems. In these systems, effects such as coherence, entanglement, and non-Markovianity play key roles. In this thesis, we e...

Quantum Physics

Resonant states and nuclear dynamics in solid-state systems: the case of silicon-hydrogen bond dissociation

Woncheol Lee, Mark E. Turiansky, Dominic Waldhör +3 more·Nov 29, 2025

Bond breaking in the presence of highly energetic carriers is central to many important phenomena in physics and chemistry, including radiation damage, hot-carrier degradation, activation of dopant-hydrogen complexes in semiconductors, and photocatal...

cond-mat.mtrl-sciphysics.app-phQuantum Physics
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