Papers

632 papers found

Quantum computing with anyons is fault tolerant

Anasuya Lyons, Benjamin J. Brown·Feb 11, 2026

In seminal work (arxiv:quant-ph/9707021) Alexei Kitaev proposed topological quantum computing (arXiv:cond-mat/0010440, arxiv:quant-ph/9707021, arXiv:quant-ph/0001108, arXiv:0707.1889), whereby logic gates of a quantum computer are conducted by creati...

Quantum Physicscond-mat.stat-mechcond-mat.str-el

Floquet Control of Electron and Exciton Transport in Kekulé-Distorted Graphene

Sita Kandel, Godfrey Gumbs·Feb 11, 2026

This work investigates the Floquet dynamics of electrons and excitons (particle-hole pairs) in a Dirac material referred to as Kekulé-distorted graphene. Specifically, we examine the role played by a high frequency driving electromagnetic field on th...

Mesoscale PhysicsQuantum Physics

Mixed-State Topology in Non-Hermitian Systems

Shou-Bang Yang, Pei-Rong Han, Wen Ning +3 more·Feb 11, 2026

Non-Hermitian (NH) systems, owing to the existence of exceptional point (or ring and surface), exhibit exotic topological features which are inaccessible in Hermitian systems. While current studies on NH topology has primarily focused on pure states ...

Quantum Physics

Notes on Bell states and quantum teleportation

Yong Zhang, Wei Zeng, Ming Lian·Feb 11, 2026

Bell states and quantum teleportation play important roles in the study of quantum information and computation. But a comprehensive theoretical research on both of them remains to be performed. This work aims to investigate important algebraic proper...

Quantum Physics

Anyon Permutations in Quantum Double Models through Constant-depth Circuits

Yabo Li, Zijian Song·Feb 10, 2026

We provide explicit constant-depth local unitary circuits that realize general anyon permutations in Kitaev's quantum double models. This construction can be naturally understood through a correspondence between anyon permutation symmetries of two-di...

Quantum Physicscond-mat.str-el

Emergence of a Luttinger Liquid Phase in an Array of Chiral Molecules

Muhammad Arsalan Ali Akbar, Bretislav Friedrich, Sabre Kais·Feb 10, 2026

We propose a robust platform for simulating chiral quantum magnetism using linear arrays of trapped asymmetric top molecules, specifically 1,2-propanediol ($\mathrm{C_{3}H_{8}O_{2}}$). By mapping the Stark-dressed rotational states onto an effective ...

Quantum Physics

The chiral random walk: A quantum-inspired framework for odd diffusion

Jan Wójcik, Erik Kalz·Feb 10, 2026

Chirality in active and passive fluids gives rise to odd transport properties, most notably the emergence of robust edge currents that defy standard dissipative dynamics. While these phenomena are well-described by continuum hydrodynamics, a microsco...

cond-mat.stat-mechcond-mat.softQuantum Physics

Majorana zero modes in superconductor-magnet heterostructures with d-wave order

Bastien Fajardo, T. Pereg-Barnea, Arun Paramekanti +1 more·Feb 9, 2026

Magnetic skyrmions in proximity to superconductors offer a route to engineering topological superconductivity due to the synthetic spin-orbit coupling engendered by the spin twist of the skyrmion texture. Previous theoretical works show that this lea...

cond-mat.supr-conQuantum Physics

Negative Hybridization: a Potential Cure for Braiding with Imperfect Majorana Modes

Cole Peeters, Themba Hodge, Stephan Rachel·Feb 9, 2026

Majorana zero modes, the elementary building blocks for the quantum bits of topological quantum computers, are known to suffer from hybridization as their wavefunctions begin to overlap. This breaks the ground state degeneracy, splitting their energy...

Mesoscale Physicscond-mat.supr-conQuantum Physics

Causal Rigidity of Born-Type Probability Rules in Infinite-Dimensional Operational Theories

Enso O. Torres Alegre·Feb 7, 2026

We establish an operational rigidity result for a broad class of probability rules in infinite-dimensional settings, applicable under normality and steering assumptions. Starting from a topological generalization of generalized probabilistic theories...

Quantum Physics

Non-Hermitian physics in the many-body system of Rydberg atoms

Ya-Jun Wang, Jun Zhang, Dong-Sheng Ding·Feb 7, 2026

Non-Hermitian physics exhibits unique physical properties beyond those of traditional Hermitian systems, such as symmetry breaking, the emergence of exceptional points, topological phase transitions, and more. These phenomena have been extensively st...

cond-mat.quant-gasQuantum Physics

Charge-$4e$ superconductor with parafermionic vortices: A path to universal topological quantum computation

Zhengyan Darius Shi, Zhaoyu Han, Srinivas Raghu +1 more·Feb 6, 2026

Topological superconductors (TSCs) provide a promising route to fault-tolerant quantum information processing. However, the canonical Majorana platform based on $2e$ TSCs remains computationally constrained. In this work, we find a $4e$ TSC that over...

cond-mat.str-elhep-thQuantum Physics

The HyperFrog Cryptosystem: High-Genus Voxel Topology as a Trapdoor for Post-Quantum KEMs

Victor Duarte Melo·Feb 6, 2026

HyperFrog is an experimental post-quantum Key Encapsulation Mechanism that explores a variant of the Learning With Errors (LWE) design space in which the secret is not sampled from an independent product distribution, but is deterministically derived...

CryptographyQuantum Physics

"It from Bit": The Hartle-Hawking state and quantum mechanics for de Sitter observers

Ying Zhao·Feb 5, 2026

The one-state statement for closed universes has sparked considerable discussion. In this paper, we examine its physical meaning in the context of the Hartle-Hawking state and de Sitter space. We argue that the one-state property of closed universes ...

hep-thgr-qcQuantum Physics

Local measurements and the entanglement transition in quantum spin chains

Sven Bachmann, Mahsa Rahnama, Gabrielle Tournaire·Feb 5, 2026

We consider the transition between short-range entangled (SRE) and long-range ordered (and therefore long-range entangled) states of infinite quantum spin chains, which is induced by local measurements. Specifically, we assume that the initial state ...

Mathematical PhysicsQuantum Physics

Spatiotemporal Topological Phase Transition in non-Hermitian Photonic System

Zimeng Zeng, Zhuoyang Li, Jiayao Liu +2 more·Feb 5, 2026

While energy band topology in spatial photonic crystals (PCs) and momentum-band topology in temporal crystals have each served as powerful probes of topological phases in their respective domains, their unification in a static platform remains unexpl...

physics.opticsQuantum Physics

Quantum Sequential Circuits

D. -S. Wang·Feb 5, 2026

This work introduces and characterizes quantum sequential circuits (QSCs) as a hardware-oriented paradigm for quantum computing, built upon a novel foundational element termed the quantum transistor. Unlike conventional qubit-based architectures, QSC...

Quantum Physicscond-mat.mtrl-scics.AR

Topological frustration and quantum resources

Alberto Giuseppe Catalano, Gianpaolo Torre, Salvatore Marco Giampaolo +1 more·Feb 4, 2026

Although in general boundary conditions do not affect the bulk properties of a system, some of them are special and defy such expectation. This is the case, for instance, of those inducing geometrical frustration in a classical magnet. Recently, the ...

Quantum Physicscond-mat.str-el

Real and momentum space analysis of topological phases in 2D d-wave altermagnets

Manuel Calixto·Feb 4, 2026

Altermagnetism has recently emerged as a third fundamental branch of magnetism, combining the vanishing net magnetization of antiferromagnets with the high-momentum-dependent spin splitting of ferromagnets. This study provides a comprehensive real- a...

Mesoscale PhysicsMathematical PhysicsQuantum Physics

A Unified Categorical Description of Quantum Hall Hierarchy and Anyon Superconductivity

Donghae Seo, Taegon Lee, Gil Young Cho·Feb 3, 2026

We present a unified category-theoretic framework for quantum Hall hierarchy constructions and anyon superconductivity based on modular tensor categories over $\mathrm{Rep}(\mathrm{U}(1))$ and $\mathrm{sRep}(\mathrm{U}(1)^f)$. Our approach explicitly...

cond-mat.str-elcond-mat.supr-conhep-thQuantum Physics