Quantum Brain

Papers

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

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12,912 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

Coherent Control of Quantum-Dot Spins with Cyclic Optical Transitions

Zhe Xian Koong, Urs Haeusler, Jan M. Kaspari +12 more·Sep 17, 2025

Solid-state spins are promising as interfaces from stationary qubits to single photons for quantum communication technologies. Semiconductor quantum dots have excellent optical coherence, exhibit near unity collection efficiencies when coupled to pho...

Quantum PhysicsMesoscale Physics

Photonic Spin Hall Effect using bilayer Graphene in Nano Optomechanical Cavities

Muqaddar Abbas, Muhammad Awais Altaf, Pei Zhang +1 more·Sep 17, 2025

We propose a theoretical model to obtain the photonic spin Hall effect (SHE) in an optomechanical nanocavity using a graphene bilayer as the intracavity medium. In our model, the pump and probe fields coherently drive the first mirror, whereas the se...

Quantum Physics

Probing the meV QCD Axion with the $\texttt{SQWARE}$ Quantum Semiconductor Haloscope

Jaanita Mehrani, Tao Xu, Andrey Baydin +6 more·Sep 17, 2025

We propose the Semiconductor-Quantum-Well Axion Radiometer Experiment ($\texttt{SQWARE}$) -- a new experimental platform for direct detection of axion dark matter in the meV mass range -- based on resonantly enhanced axion-photon conversion through t...

hep-phastro-ph.COMesoscale Physicsphysics.ins-det

Design and Dynamics of Two-Qubit Gates with Motional States of Electrons on Helium

Oskar Leinonen, Jonas B. Flaten, Stian D. Bilek +6 more·Sep 17, 2025

Systems of individual electrons electrostatically trapped on condensed noble gas surfaces have recently attracted considerable interest as potential platforms for quantum computing. The electrons serve as charge qubits in the system, and the purity o...

Quantum PhysicsMesoscale Physics

Anomalous Trajectory Drift and Geometric Phases of Cyclic Spinor Solitons Induced by Virtual Magnetic Monopoles

Ruo-Yun Wu, Ning Mao, Xiao-Lin Li +2 more·Sep 17, 2025

We investigate the dynamics of a two-component Bose-Einstein condensate with spin-orbit coupling numerically and analytically. Under the drive of a weak segmented rotational external field, we observe that the system exhibits cyclic soliton motion; h...

cond-mat.quant-gasnlin.PSQuantum Physics

Quantum Dial for High-Harmonic Generation

Lu Wang, Andrew M. Parks, Adam Thorpe +3 more·Sep 16, 2025

High-harmonic generation (HHG) is a highly nonlinear optical process that typically requires an intense laser to trigger emissions at integer multiples of the driving field frequency. However, the strong fields required for conventional HHG inevitabl...

physics.opticsQuantum Physics

Detector-based measurement-induced state updates in AdS/CFT

Vijay Balasubramanian, Esko Keski-Vakkuri, Nicola Pranzini·Sep 16, 2025

Conventional understandings of quantum theory hold that measurements change the state of an observed system following the Lüders update rule. Textbooks describe the application of this idea to non-relativistic systems, but extensions to relativistic ...

hep-thgr-qcQuantum Physics

Quantum ground-state cooling of two librational modes of a nanorotor

Stephan Troyer, Florian Fechtel, Lorenz Hummer +4 more·Sep 16, 2025

Controlling the motion of nanoscale objects at the quantum limit promises new tests of quantum mechanics and advanced sensors. Rotational motion is of particular interest, as it follows nonlinear dynamics in a compact, closed configuration space, whi...

Quantum Physicsphysics.optics

Ultrafast non-adiabatic molecular energy conversion into photons induced by quantized electromagnetic fields

Arley Flórez López, Johan F. Triana, José Luis Sanz-Vicario·Sep 16, 2025

Molecular polaritons within the mid-infrared regime have emerged as a source for modifying and manipulating molecular and photonic properties. However, the development of new methodologies for photon generation is still a challenge in nanophotonics. ...

Quantum Physics

Mitigating the phase-mismatch effect in non-resonant four-wave mixing enabled by optimal control

Ning Jia, Hamid R. Hamedi, Jing Qian·Sep 16, 2025

Phase-mismatch in nonlinear optical processes can severely limit the propagation and conversion efficiency of light fields. Here, we present an efficient optimal-control strategy to mitigate the detrimental effects of phase-mismatch in an electromagn...

Quantum Physics

Cavity-Modified Nonequilibrium Fermi's Golden Rule Rate Coefficients from Cavity-Free Inputs

Pouya Khazaei, Eitan Geva·Sep 16, 2025

The Nonequilibrium Fermi's Golden Rule (NE-FGR) provides a convenient theoretical framework for calculating the charge transfer rate between a photoexcited bright donor electronic state and a dark acceptor electronic state, when the nuclear degrees o...

Quantum Physics

SLasH-DSA: Breaking SLH-DSA Using an Extensible End-To-End Rowhammer Framework

Jeremy Boy, Antoon Purnal, Anna Pätschke +2 more·Sep 16, 2025

As quantum computing advances, Post-Quantum Cryptography (PQC) schemes are adopted to replace classical algorithms. Among them is the Stateless Hash-Based Digital Signature Algorithm (SLH-DSA) that was recently standardized by NIST and is favored for...

Computer Science

Loading and Imaging Atom Arrays via Electromagnetically Induced Transparency

Emily H. Qiu, Tamara Šumarac, Peiran Niu +9 more·Sep 15, 2025

Arrays of neutral atoms present a promising system for quantum computing, quantum sensors, and other applications, several of which would profit from the ability to load, cool, and image the atoms in a finite magnetic field. In this work, we develop ...

Atomic PhysicsQuantum Physics

Spatial structure of multipartite entanglement at measurement induced phase transitions

James Allen, William Witczak-Krempa·Sep 15, 2025

We study multiparty entanglement near measurement induced phase transitions (MIPTs), which arise in ensembles of local quantum circuits built with unitaries and measurements. In contrast to equilibrium quantum critical transitions, where entanglement...

Quantum Physics

Formation of oriented polar molecules with a single shaped pulse

Murilo D. Forlevesi, Edson Denis Leonel, Emanuel F. de Lima·Sep 15, 2025

We explore the possibility of forming a oriented polar molecule directly from a pair of colliding atoms. The process comprises the photoassociation and vibrational stabilization along with the molecular orientation. These processes are driven by a si...

Quantum Physics

High-performance multiplexed readout of superconducting qubits with a tunable broadband Purcell filter

Yuzhe Xiong, Zilin Wang, Jiawei Zhang +14 more·Sep 15, 2025

Fast, high-fidelity, and low back-action readout plays a crucial role in the advancement of quantum error correction (QEC). Here, we demonstrate high-performance multiplexed readout of superconducting qubits using a tunable broadband Purcell filter, ...

Quantum Physics

Emergence of Symmetry in a System of Distinguishable but Identical Particles

Allan Tameshtit·Sep 15, 2025

Instead of the conventional construction of symmetric and antisymmetric states by abruptly projecting with the symmetrizer or antisymmetrizer, this paper investigates rapid but continuous symmetrization via environment-induced decoherence. Density op...

Quantum Physics

Pulse-to-Circuit Characterization of Stealthy Crosstalk Attack on Multi-Tenant Superconducting Quantum Hardware

Syed Emad Uddin Shubha, Tasnuva Farheen·Sep 14, 2025

Hardware crosstalk in multi-tenant superconducting quantum computers constitutes a significant security threat, enabling adversaries to inject targeted errors across tenant boundaries. We present the first end-to-end framework for mapping physical pu...

Quantum PhysicsCryptography

Neural Decoders for Universal Quantum Algorithms

J. Pablo Bonilla Ataides, Andi Gu, Susanne F. Yelin +1 more·Sep 14, 2025

Fault-tolerant quantum computing demands decoders that are fast, accurate, and adaptable to circuit structure and realistic noise. While machine learning (ML) decoders have demonstrated impressive performance for quantum memory, their use in algorith...

Quantum Physics

The Emergence of Objective Classicality: A Computational First-Principles Study of Observer-Induced Decoherence in Unitary Quantum Mechanics

Eyad I. B Hamid·Sep 14, 2025

The quantum measurement problem, the unresolved conflict between the unitary evolution of the wave function and the postulate of wave function collapse, remains the most profound conceptual challenge in quantum foundations. While environment-induced ...

Quantum Physics
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