Quantum Brain

Papers

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

Total Papers

27,548

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1,041

Today

0

Research Volume

12,894 papers in 12 months (-5% vs prior quarter)

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

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Hardware platform mentions in abstractsPhotonic leads

27,548 papers found

Generation of 12 dB squeezed light from a waveguide optical parametric amplifier using a machine-learning-controlled spatial light modulator

Gyeongmin Ha, Kazuki Hirota, Takahiro Kashiwazaki +5 more·Mar 3, 2026

We demonstrate the generation of $12.1 \pm 0.2$ dB squeezed light from a periodically poled lithium niobate (PPLN) waveguide optical parametric amplifier (OPA). While single-pass OPAs offer squeezed light with THz-order bandwidths, loss from spatial ...

Quantum Physics

Geometric mechanisms enabling spin- and enantio-sensitive observables in one photon ionization of chiral molecules

Philip Caesar M. Flores, Stefanos Carlström, Serguei Patchkovskii +3 more·Mar 3, 2026

We examine spin-resolved photoionization of randomly oriented chiral molecules via circularly polarized light, and revisit earlier predictions of Cherepkov (J. Phys. B: Atom. Mol. Phys. 16, 1543, 1983). We will show that the dynamical origin of spin-...

Atomic PhysicsQuantum Physics

Non-commutative integration method and generalized coherent states

A. I. Breev, D. M. Gitman·Mar 3, 2026

The relationship between states obtained by the non-commutative integration method of the Schrödinger equation on Lie groups and generalized coherent states is investigated. It is shown that such solutions belong to the class of generalized coherent ...

Quantum Physics

Correction scheme for total energy obtained on fault-tolerant quantum computer via quantum dominant orbital selection and subspace dynamical correlation methods

Nobuki Inoue, Hisao Nakamura·Mar 3, 2026

We propose a practical method for accurately evaluating molecular energies using a hybrid approach that integrates fault-tolerant quantum computers with classical computing. Our scheme comprises two complementary methods: quantum dominant orbital sel...

Quantum Physicsphysics.chem-ph

Neural quantum support vector data description for one-class classification

Changjae Im, Hyeondo Oh, Daniel K. Park·Mar 3, 2026

One-class classification (OCC) is a fundamental problem in machine learning with numerous applications, such as anomaly detection and quality control. With the increasing complexity and dimensionality of modern datasets, there is a growing demand for...

Quantum Physicscs.LG

Causal Learning Should Embrace the Wisdom of the Crowd

Ryan Feng Lin, Yuantao Wei, Huiling Liao +2 more·Mar 3, 2026

Learning causal structures typically represented by directed acyclic graphs (DAGs) from observational data is notoriously challenging due to the combinatorial explosion of possible graphs and inherent ambiguities in observations. This paper argues th...

cs.LGEmerging Techcs.HCstat.ME

Qudit Designs and Where to Find Them

Namit Anand, Jeffrey Marshall, Jason Saied +2 more·Mar 3, 2026

Unitary t-designs are some of the most versatile tools in quantum information theory. Their applications range from randomized benchmarking and shadow tomography, to more fundamental ones such as emulating quantum chaos and establishing exponential s...

Quantum Physicsmath.RT

Quantum Algorithms for Approximate Graph Isomorphism Testing

Prateek P. Kulkarni·Mar 3, 2026

The graph isomorphism problem asks whether two graphs are identical up to vertex relabeling. While the exact problem admits quasi-polynomial-time classical algorithms, many applications in molecular comparison, noisy network analysis, and pattern rec...

Quantum PhysicsComplexity

Rate-Fidelity Tradeoffs in All-Photonic and Memory-Equipped Quantum Switches

Panagiotis Promponas, Leonardo Bacciottini, Paul Polakos +3 more·Mar 3, 2026

Quantum entanglement switches are a key building block for early quantum networks, and a central design question is whether near-term devices should use only flying photons or also incorporate quantum memories. We compare two architectures: an all-ph...

Quantum Physicscs.NI

Ultra-low loss piezo-optomechanical low-confinement silicon nitride platform for visible wavelength quantum photonic circuits

Mayank Mishra, Gwangho Choi, Wenhua He +7 more·Mar 3, 2026

The stringent demands of photonic quantum computing protocols motivate photonic integrated circuit (PIC) platforms with passive optical properties such as extremely low losses and correspondingly large circuit depths, as well as active optical proper...

physics.opticsQuantum Physics

Steering paths mid-flight for fault-tolerance in measurement-based holonomic gates

Anirudh Lanka, Juan Garcia-Nila, Todd A. Brun·Mar 3, 2026

Continuous measurement-based holonomic quantum computation provides a route to universal logical computation in quantum error correcting codes. We introduce a fault-tolerant framework for implementing measurement-based holonomic gates that leverages ...

Quantum Physics

Human-Certified Module Repositories for the AI Age

Szilárd Enyedi·Mar 3, 2026

Human-Certified Module Repositories (HCMRs) are introduced in this work as a new architectural model for constructing trustworthy software in the era of AI-assisted development. As large language models increasingly participate in code generation, co...

Emerging TechAIcs.SE

Measurement of a quantum system using spin-mechanical conversion

A. A. Wood, D. S. Rice, T. Xie +5 more·Mar 3, 2026

Levitated macroscopic particles exhibiting quantum mechanical effects are garnering increased attention as a means for precision sensing and testing quantum mechanics. Defects in diamond, such as the nitrogen-vacancy (NV) centre possess optically-add...

Quantum Physics

High-Stress Si3N4 Reflective Membranes Monolithically Integrated with Cavity Bragg Mirrors

Megha Khokhar, Lucas Norder, Paolo M. Sberna +1 more·Mar 3, 2026

High-stress silicon nitride (Si3N4) membranes represent the state-of-the-art for cavity optomechanics, combining ultralow dissipation, optical transparency, and full compatibility with wafer-scale nanofabrication. Yet their integration into high-fine...

physics.opticsMesoscale Physicscond-mat.mtrl-sciphysics.app-ph

RIS-Enabled Wireless Channel Equalization: Adaptive RIS Equalizer and Deep Reinforcement Learning

Gal Ben-Itzhak, Ender Ayanoglu·Mar 3, 2026

Reconfigurable Intelligent Surfaces (RISs) offer a promising means of reshaping the wireless propagation environment, yet practical methods for configuring large passive arrays to achieve reliable signal equalization remain limited. Equalization is e...

cs.ITEmerging Techeess.SP

Optimizing Orbital Parameters of Satellites for a Global Quantum Network

Athul Ashok, Owen DePoint, Jackson MacDonald +2 more·Mar 3, 2026

Due to fundamental limitations on terrestrial quantum links, satellites have received considerable attention for their potential as entanglement generation sources in a global quantum internet. In this work, we focus on the problem of designing a con...

Quantum Physicscs.LGcs.NI

JIMWLK on a quantum computer

Anjali A. Agrawal, Evan Budd, A. F. Kemper +3 more·Mar 3, 2026

We propose a method for solving the Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner (JIMWLK) evolution equation on quantum computers. Our approach exploits the reformulation of the JIMWLK equation as a Lindblad master equation governing the ra...

Physics

VA-DAR: A PQC-Ready, Vendor-Agnostic Deterministic Artifact Resolution for Serverless, Enumeration-Resistant Wallet Recovery

Jian Wang·Mar 3, 2026

Serverless wallet recovery must balance portability, usability, and privacy. Public registries enable decentralized lookup but naive identifier hashing leaks membership through enumeration. We present VA-DAR, a keyed-discovery protocol for ACE-GF-bas...

Computer Science

Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory

Enrico C. Domanti, Alejandro Bermudez·Mar 2, 2026

With the advent of quantum simulators, exploring exotic collective phenomena in lattice models with local symmetries and unconventional geometries is at reach of near-term experiments. Motivated by recent progress in this direction, we study a $\math...

cond-mat.str-elcond-mat.quant-gashep-latQuantum Physics

Collapse and transition of a superposition of states under a delta-function pulse in a two-level system

Ariel Edery·Mar 2, 2026

Under a time-dependent perturbation it is common to calculate the transition probability in going from from one eigenstate to another eigenstate of a quantum system. In this work we study the transition in going from a \textit{linear superposition of...

Quantum Physicshep-th
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