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We show that the braiding of anyons in a quantum spin liquid leaves a distinct dynamical signature in the nonlinear pump-probe response. Using a combination of exact diagonalization and matrix product state techniques, we study the…

Strongly Correlated Electrons · Physics 2026-01-22 Xu Yang , Ryan Buechele , Nandini Trivedi

We show that the presence of anyons in the excitation spectrum of a two-dimensional system can be inferred from nonlinear spectroscopic quantities. In particular, we consider pump-probe spectroscopy, where a sample is irradiated by two…

Strongly Correlated Electrons · Physics 2024-02-07 Max McGinley , Michele Fava , S. A. Parameswaran

The exotic braiding of anyons is certainly the most tantalizing aspect of fractional quantum Hall states. Although braiding is usually thought as a two-dimensional adiabatic manipulation, the braiding phase can also be captured in one…

Mesoscale and Nanoscale Physics · Physics 2022-12-13 Christophe Mora

Anyons are usually characterized by their topological data and their fractional quantum numbers under global symmetries. In lattice systems such as fractional Chern insulators (FCI), they are also mobile quasiparticles. Their motion…

Mesoscale and Nanoscale Physics · Physics 2026-05-29 Taige Wang , T. Senthil

Identifying experimental signatures of anyons, which exhibit fractional exchange statistics, remains a central challenge in the study of two-dimensional topologically ordered systems. Previous theoretical work has shown that the threshold…

Strongly Correlated Electrons · Physics 2025-11-24 Nico Kirchner , Wonjune Choi , Frank Pollmann

We study the behaviour of linear and nonlinear spectroscopic quantities in two-dimensional topologically ordered systems, which host anyonic excitations exhibiting fractional statistics. We highlight the role that braiding phases between…

Strongly Correlated Electrons · Physics 2024-02-12 Max McGinley , Michele Fava , S. A. Parameswaran

We show that the anyonic statistics of fractionalized excitations display characteristic signatures in threshold spectroscopic measurements. Drawing motivation from topologically ordered phases such as gapped quantum spin liquids and…

Strongly Correlated Electrons · Physics 2017-06-07 Siddhardh C. Morampudi , Ari M. Turner , Frank Pollmann , Frank Wilczek

We explain how gapped quantum spin liquids, both conventional and 'fractonic', may be unambiguously diagnosed experimentally using the technique of multidimensional coherent spectroscopy. 'Conventional' gapped quantum spin liquids (e.g.…

Strongly Correlated Electrons · Physics 2021-10-11 Rahul M. Nandkishore , Wonjune Choi , Yong Baek Kim

Correlations of partitioned particles carry essential information about their quantumness. Partitioning full beams of charged particles leads to current fluctuations, with their autocorrelation (namely, shot noise) revealing the particle'…

Mesoscale and Nanoscale Physics · Physics 2023-05-18 June-Young M. Lee , Changki Hong , Tomer Alkalay , Noam Schiller , Vladimir Umansky , Moty Heiblum , Yuval Oreg , H. -S. Sim

Contrary to fermions and bosons, anyons are quasiparticles that keep a robust memory of particle exchanges via a braiding phase factor. This provides them with unique dynamical properties so far unexplored. When an anyon excitation is…

Anyons are quasiparticles with fractional statistics, bridging between fermions and bosons. We propose an experimental setup to measure the statistical angle of topological anyons emitted from a quantum point contact (QPC) source. The setup…

The search for anyons, quasiparticles with fractional charge and exotic exchange statistics, has inspired decades of condensed matter research. Quantum Hall interferometers enable direct observation of the anyon braiding phase via discrete…

We establish an exact mapping between identical particles in one dimension with arbitrary exchange statistics, including bosons, anyons and fermions, provided they share the same scattering length. This boson-anyon-fermion mapping…

Quantum Gases · Physics 2025-06-27 Haitian Wang , Yu Chen , Xiaoling Cui

Anyon colliders -- quantum Hall devices where dilute quasiparticle beams collide at a quantum point contact -- provide an interferometer-free probe of anyonic exchange phases through current cross correlations. Within a non-equilibrium…

Mesoscale and Nanoscale Physics · Physics 2025-10-15 Bernd Rosenow , Bertrand I. Halperin

Anyons are exotic quasiparticles living in two dimensions that do not fit into the usual categories of fermions and bosons, but obey a new form of fractional statistics. Following a recent proposal [Phys. Rev. Lett. 98, 150404 (2007)], we…

Quantum Physics · Physics 2010-04-22 Chao-Yang Lu , Wei-Bo Gao , Otfried Gühne , Xiao-Qi Zhou , Zeng-Bing Chen , Jian-Wei Pan

We study gapped boundaries of Abelian type-I fracton systems in three spatial dimensions. Using the X-cube model as our motivating example, we give a conjecture, with partial proof, of the conditions for a boundary to be gapped. In order to…

Strongly Correlated Electrons · Physics 2019-03-25 Daniel Bulmash , Thomas Iadecola

Fractional excitations in fracton models exhibit novel features not present in conventional topological phases: their mobility is constrained, there are an infinitude of types, and they bear an exotic sense of 'braiding'. Hence, they…

Strongly Correlated Electrons · Physics 2019-10-24 Wilbur Shirley , Kevin Slagle , Xie Chen

Anyons are exotic quasi-particles with fractional charge that can emerge as fundamental excitations of strongly interacting topological quantum phases of matter. Unlike ordinary fermions and bosons, they may obey non-abelian statistics--a…

Strongly Correlated Electrons · Physics 2018-03-14 Zlatko Papić , Roger S. K. Mong , Ali Yazdani , Michael P. Zaletel

The experimental discovery of the fractional Hall conductivity in two-dimensional electron gases revealed new types of quantum particles, called anyons, which are beyond bosons and fermions as they possess fractionalized exchange…

Strongly Correlated Electrons · Physics 2021-09-14 Yan-Cheng Wang , Meng Cheng , William Witczak-Krempa , Zi Yang Meng

Fractional quantum statistics are the defining characteristic of anyons. Measuring the phase generated by an exchange of anyons is challenging, as standard interferometry setups -- such as the Fabry-P\'erot interferometer -- suffer from…

Mesoscale and Nanoscale Physics · Physics 2025-06-16 Bikash Ghosh , Maria Labendik , Liliia Musina , Vladimir Umansky , Moty Heiblum , David F. Mross
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