Papers
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...
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...
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 ...
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...
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...
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 ...
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...
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...
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...
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...
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...
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...
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...
"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 ...
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 ...
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...
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...
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 ...
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...
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...