Quantum Brain

Papers

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

Total Papers

33,773

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57

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0

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16,707 papers in 12 months (-57% vs prior quarter)

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Qubit Platforms

Hardware platform mentions in abstractsPhotonic leads

33,773 papers found

Fabless Quantum Chip Design and Commercial Production

Cai, Ling Qiao, Bin Yang +6 more·Jun 16, 2026

This paper proposes a fabless quantum-chip design and production architecture for superconducting quantum computing, centered on the SPICE-Q multiphysics simulation framework. The proposed ecosystem connects process-certified quantum PDKs, parameteri...

Quantum Physics

A Lindbladian for holographic Brownian motion

Daichi Takeda·Jun 16, 2026

We derive a Lindbladian description of holographic Brownian motion in the high-temperature regime. Starting from the influence functional for a trailing string endpoint, we identify the corresponding quantum master equation and prove that it is compl...

hep-thcond-mat.stat-mechQuantum Physics

Twin-beam advantage in quantum LiDAR under correlated noise

Valeria Cimini·Jun 16, 2026

Quantum light promises improved precision in optical remote sensing, but its practical advantage depends critically on whether nonclassical resources remain useful under realistic noise and experimentally accessible detection. This question becomes e...

Quantum Physics

SPICE-Q and Large-Scale Quantum Chip Production

Cai, Ling Qiao, Bin Yang +7 more·Jun 16, 2026

We propose SPICE-Q, a SPICE-inspired design-technology co-optimization framework for superconducting quantum processors. Rather than replacing tools such as HFSS, Qiskit Metal, pyEPR, SQcircuit, SQuADDS, scqubits, or QuTiP, SPICE-Q aims to connect th...

Quantum Physics

Quantum Chip Paradigm Framework

Cai, Ling Qiao, Bin Yang +7 more·Jun 16, 2026

Quantum Electronic Design Automation (Q-EDA) is emerging as quantum chips move from laboratory prototypes to scalable engineering systems. This paper argues that superconducting quantum chip design is approaching a "SPICE moment" similar to early cla...

Quantum Physics

Demultiplexing Generalized Information via Quantum Transmission Lines

Soham Sau, Anna Jenčová, Tamal Guha·Jun 16, 2026

Demultiplexers are the fundamental primitives of network architecture, enabling perfect routing of an input classical signal to a designated one, among multiple output ports. Quantum transmission lines, having access to the quantum systems directly, ...

Quantum Physics

Frequency upconversion of infrared signals via molecular cavity optomechanical systems with gain

Shu-Xian Quan, Fen Zou, Yong Li·Jun 16, 2026

Molecular cavity optomechanical systems have recently emerged as a promising platform for enhancing infrared detection sensitivity, owing to their ability to up-convert low-frequency infrared (IR) photons to visible frequency range. Generally, under ...

Quantum Physics

Experimental Characterization and Modeling of Measurement-Induced State-Transitions in a Fluxonium Superconducting Qubit

Martijn F. S. Zwanenburg, Jinlun Hu, Eugene Y. Huang +3 more·Jun 16, 2026

Superconducting qubits are most often measured using dispersive readout, which, ideally, implements a projective quantum non-demolition (QND) measurement. While a larger readout drive can increase the signal and, thus, reduce discrimination errors in...

Quantum Physics

Split-Head Quantum Generative Adversarial Network for Crystalline Material Discovery

Huan-Ming Chang, Jen-Yu Chang, Tsung-Wei Huang +1 more·Jun 16, 2026

The discovery of novel crystalline materials is a critical challenge in computational materials science, often limited by the spatial representation limitations and mode collapse typical of classical generative models. Traditionally, developing Quant...

Quantum Physics

Creating squeezed and non-classical collective motional many-body states through stroboscopic Rydberg dressing

Roman Wußler, Chris Nill, Sylvain de Léséleuc +2 more·Jun 16, 2026

Realizing conditional quantum operations, e.g., quantum gates, for quantum computing and simulation requires controlled interactions between particles. Often, these interactions depend on the interparticle distance, and accordingly, an uncertainty of...

Atomic Physicscond-mat.quant-gasQuantum Physics

Engineering entanglement and transport in interacting quantum walks with tailored potentials

Gaia Forghieri, Matteo G. A. Paris·Jun 16, 2026

Controlling the interplay between particle propagation and quantum correlation generation is a central challenge in quantum transport. Here, we investigate two distinguishable continuous-time quantum walkers evolving on parallel one-dimensional latti...

Quantum Physics

Quantum Routers: A Switching-Fabric Framework for Quantum-Native Forwarding

Jessica Illiano, Caterina De Risi, Angela Sara Cacciapuoti +1 more·Jun 16, 2026

Forwarding in quantum networks cannot be realized by directly transposing classical switching fabrics, since the no-cloning theorem and the quantum measurement postulate constrain the direct relay of quantum information while ruling out copy-based bu...

Quantum Physics

Cavity method for permutation models on Cayley trees

Masayuki Ohzeki·Jun 16, 2026

Motivated by permutation statistical models arising in random tensor networks, we study permutation models on a Cayley tree whose variables take values in the symmetric group $\Sn$. The pair interaction is assumed to depend only on the cycle type of ...

Quantum Physicscond-mat.dis-nn

Dimension-Free Approximate Tensorization of Quantum Hypercontractivity for Qudit Depolarizing Semigroups

Yangjing Dong, Li Gao, Fengning Ou +2 more·Jun 16, 2026

We prove approximate tensorization for hypercontractivity and logarithmic-Sobolev constants for a class of reversible quantum Markov semigroups satisfying the positive off-diagonal scaling (PODS) condition. This class includes qubit examples and gene...

Quantum Physicsmath.OA

Optimizing bias-tailored quantum error correction beyond code-capacity noise

César Benito, I. Jesán Velázquez-Reséndiz, Alejandro Bermudez·Jun 16, 2026

We find that the substantial advantages predicted for bias-tailored quantum error correction (QEC) under code-capacity noise are strongly reduced once realistic syndrome extraction and circuit-level noise models are considered. We start by comparing ...

Quantum Physics

Coherent Control of an Embedded Bound State Without a Spectral Gap

Yue Chang·Jun 16, 2026

Bound states in the continuum (BICs) can confine photonic excitations in open systems without conventional cavities or band gaps, making them natural candidates for long-lived quantum storage and single-photon control. Their use is limited, however, ...

Quantum Physics

From Period Finding to Lattice Sampling: Experimental Insights into Shor's and Regev's Factoring Algorithms

Daniela Falcó, Arturo Rodríguez, Guillermo Rivas +1 more·Jun 16, 2026

Quantum algorithms for integer factorization represent one of the most prominent applications of quantum computation, with far-reaching implications for modern cryptography. While Shor's algorithm provides a polynomial-time solution in the ideal quan...

Quantum Physics

Quantum mechanics in configuration space in context

Arwa Bukhari, Margherita Moro, Max Davies +2 more·Jun 16, 2026

To enhance the way in which wave-particle duality is implemented in the modelling of quantum mechanical systems, Bukhari et al. [New J. Phys. 27, 084501 (2025)] recently introduced an alternative approach to quantum mechanics, namely quantum mechanic...

Quantum Physics

Quantum Computing Algebra (QCA), the theory and implementation

Jaroslav Hrdina, Dietmar Hildenbrand, Oliver Rettig·Jun 16, 2026

We present a real geometric algebra framework designed for the direct translation of the Dirac formalism into geometric algebra representations. Unlike previous approaches based on positive-definite signatures, QCA employs a split-signature construct...

Quantum PhysicsMathematical Physics

Photon anti-bunching in high harmonic generation

Philipp Stammer, Javier Rivera-Dean, Maciej Lewenstein·Jun 16, 2026

Photon anti-bunching is the direct evidence for the existence of photons without having a classical counterpart. Unlike bunching of photons, which can have a semi-classical description, the effect of photon anti-bunching can only be understood with q...

Quantum Physicsphysics.optics
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