Quantum Brain

Papers

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

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33,580

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455

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16,618 papers in 12 months (-31% vs prior quarter)

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33,580 papers found

Fate of the non-Abelian Moore-Read manifold under the non-Hermitian skin effect

Jiaxuan Guo, Simin Nie, Xiting Zhang +1 more·Aug 26, 2026

We study a non-Abelian Moore-Read fractional Chern insulator under a translation-preserving, nonreciprocal deformation that generates the non-Hermitian skin effect under open boundaries. The model combines the imaginary-gauge Hatano-Nelson deformatio...

cond-mat.str-elMesoscale PhysicsQuantum Physics

Simultaneous Digital Communication and Deformation Sensing over a Single Stretchable Interconnect

Yuji Isano, Hiroki Ota·Aug 26, 2026

Stretchable hybrid electronics integrate rigid solid-state electronics with stretchable materials and structures to achieve both high deformability and stable electronic performance. However, most existing systems treat stretchability only as a mecha...

Emerging Techcs.HCphysics.app-ph

The View from Within: What Can Embedded Observers (Not) Learn?

Tomáš Gonda, Johannes Fankhauser, Gemma De les Coves·Aug 26, 2026

Physics is usually done from a third-person perspective, as if the world were described from outside. Yet, observers are themselves physical systems within the world they observe. Here, we investigate this tension using a toy model of classical parti...

Quantum Physics

Fault-tolerant $|\sqrt{ \mathrm{T} }\rangle$ state preparation and injection for more efficient fine-grained quantum circuit synthesis

Berat Yenilen, Markus Müller, Manuel Rispler·Aug 26, 2026

Magic-state injection is a standard route to realize universal fault-tolerant quantum computation. Whereas the set of Clifford gates in combination with the non-Clifford T gate is a widely used universal gate set, extending the available set of non-C...

Quantum Physics

Quantum sampling in hybrid light-matter systems with mixed statistics

Franziska Barkhausen, Laura Ares, Stefan Schumacher +1 more·Aug 26, 2026

Boson sampling is one of the most prominent methods to verify quantum advantage, harnessing the computational complexity of the permanent of a network matrix. Similar quantum sampling problems utilize other expressions for the output probabilities, s...

Quantum PhysicsMathematical Physics

Update Disturbance-Resilient Analog ReRAM Crossbar Arrays for In-Memory Deep Learning Accelerators

Wooseok Choi, Tommaso Stecconi, Donato Francesco Falcone +14 more·Aug 26, 2026

Resistive memory (ReRAM) technologies with crossbar array architectures hold significant potential for analog AI accelerator hardware, enabling both in-memory inference and training. Recent developments have successfully demonstrated inference accele...

Emerging Tech

Study of Resistive Switching Dynamics and Memory States Equilibria in Analog Filamentary Conductive-Metal-Oxide/HfOx ReRAM via Compact Modeling

Matteo Galetta, Donato Francesco Falcone, Victoria Clerico +7 more·Aug 26, 2026

Resistive Random Access Memory (ReRAM) devices offer a promising solution for next-generation non-volatile memory and neuromorphic computing systems. Yet, existing compact models fail to capture analog resistive switching behavior of ReRAM devices. T...

Emerging Tech

The Geometric Phase as a Diagnostic for Driven-Dissipative Oscillators

Zeen Sun, Yuan Shen, Haitao Ding +2 more·Aug 26, 2026

Driven-dissipative quantum oscillators lock their phase, deform their limit cycles, and undergo dissipative phase transitions, yet these behaviors are read from unrelated quantities defined on the same steady-state density matrix. We show that a sing...

Quantum Physics

Physics-informed quantum algorithms for glueball-like excitations in a $\mathbb{Z}_2$ lattice gauge theory

Dan-Bo Zhang·Aug 26, 2026

Glueball spectroscopy with quantum computing requires both a correlated gauge vacuum and a systematic construction of its low-lying pure-gauge excitations. We develop a physics-informed quantum-computing framework for these tasks in a $(2+1)$-dimensi...

hep-latQuantum Physics

Quantum motility-induced phase separation

Laurin Brunner, Ricard Alert, Reyhaneh Khasseh +1 more·Aug 26, 2026

Motility-induced phase separation (MIPS) describes a central clustering phenomenon in active matter systems where particles spontaneously separate into dense and dilute phases even in the absence of interparticle attractive forces. Recent theoretical...

Quantum Physicsphysics.bio-ph

Phase-sensitive cascade quantum amplifier with nearly noiseless operation

Ilari Lilja, Ekaterina Mukhanova, Michael Perelshtein +5 more·Aug 26, 2026

Phase-sensitive parametric devices enable quadrature-selective amplification with the potential for sub-quantum-limited noise performance. In this work, we investigate the operation of a SQUID-based Josephson Parametric Amplifier (JPA), comparing its...

Quantum Physicscond-mat.supr-con

GNSS-free quantum gravity-aided navigation and fine-scale marine surveying with a strapdown quantum gravimeter

Patrick J. Everitt, Donald H. White, Todd Lyon +19 more·Aug 26, 2026

Global navigation satellite systems (GNSS) are often disrupted or unavailable at sea, and unaided inertial navigation systems (INS) drift without correction. Quantum-sensing-based gravity map matching offers a passive, infrastructure-free aid, but fi...

Quantum Physics

Certified decoding of quantum LDPC codes

Ragavi Krishnamoorthy, Florian Gerhardt, Johannes Knaute +8 more·Aug 26, 2026

Quantum low-density parity-check (qLDPC) codes reduce the qubit overhead of fault-tolerant quantum computation by an order of magnitude, but their decoding is harder than its classical counterpart: because many physical errors are equivalent up to st...

Quantum Physicscs.IT

A universal loss-limited optimum for fixed multi-pass quantum sensing per absorbed photon

Christoph F. Wildfeuer·Aug 26, 2026

Multi-pass schemes send a photon through a sample several times to learn more about it. When the sample rather than the light is scarce, the natural figure of merit is the information gained per photon the object absorbs. We show that one constant fi...

Quantum Physics

Superextensive learning in quantum reservoirs at the onset of information scrambling

Jonas Freiheit, Francesco Campaioli·Aug 26, 2026

The idea that information processing is optimised near the boundary between order and chaos has emerged as a recurring principle across neuroscience, complex systems, and machine learning. Here we test this hypothesis in quantum many-body systems, nu...

Quantum Physicscond-mat.dis-nn

High-Fidelity Entangled States in a Connectivity-Four Fluxonium Quantum Processor

J. Schirk, N. Bruckmoser, S. M. Taubenberger +10 more·Aug 26, 2026

A central challenge in fluxonium-based quantum processors is the extension of the qubit connectivity to two-dimensional lattices compatible with quantum code-error correction. Here, we present a fluxonium quantum processor that employs lumped-element...

Quantum Physics

Low-leakage superconducting-qubit measurement with sub-100-ns total duration

Peter A. Spring, Adrian L. Hesse, Shiyu Wang +2 more·Aug 26, 2026

Fast, accurate, and low-leakage qubit measurement is a key requirement for quantum error correction. Here, we demonstrate measurement of a superconducting transmon qubit with a total duration of 97(1) ns, defined as the time from the start of the mea...

Quantum Physics

Interpretable Activation-Selection Neural Networks for Symbolic Regression of Parameter-Dependent Hamiltonian Eigenvalues

Alexander Yu. Kharin, Kirill F. Sheberstov·Aug 26, 2026

Analytical approximations to eigenvalues of parameter-dependent Hamiltonians can provide physical insight that is not readily apparent from numerical diagonalization alone. Here, we introduce an activation-selection network (ASN), a differentiable sy...

Quantum Physics

Competing Soft Modes and Tunable Multicriticality in a Generalized Two-Mode Quantum Rabi Model

Xiufeng Cao, Ofri Adiv, Neil G. R. Broderick·Aug 26, 2026

Multicritical phenomena play a central role in quantum many-body systems, yet their microscopic origin in light--matter platforms remains largely unexplored. Here we investigate a generalized two-mode quantum Rabi model with independently tunable rot...

Quantum Physics

The temperature-dependent non-Abelian gauge potential

Zheng-Chuan Wang·Aug 26, 2026

This study shows that the usual time evolution operator can act as a U(1) gauge transformation on the initial wavefuntion. When considering the spin freedom in the system, the time evolution operator corresponds to a non-Abelian SU(2) gauge transform...

Quantum PhysicsMesoscale Physics
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