Squeezing anyons for braiding on small lattices

Autor: N. S. Srivatsa, Xikun Li, Anne E. B. Nielsen

Publikováno v: Physical Review Research, Vol 3, Iss 3, p 033044 (2021)

Adiabatically exchanging anyons gives rise to topologically protected operations on the quantum state of the system, but the desired result is only achieved if the anyons are well separated, which requires a sufficiently large area. Being able to red

Externí odkaz: https://doaj.org/article/fd1212b4f9a94c398111513983cebe91

Escaping many-body localization in an exact eigenstate

Autor: Michael Iversen, N. S. Srivatsa, Anne E. B. Nielsen

Publikováno v: Iversen, M, Srivatsa, N S & Nielsen, A E B 2022, ' Escaping many-body localization in an exact eigenstate ', Physical Review B, vol. 106, no. 21, 214201 . https://doi.org/10.1103/PhysRevB.106.214201
Iversen, M, Srivatsa, N S & Nielsen, A E B 2022, ' Escaping many-body localization in an exact eigenstate ', Phys. Rev. B, pp. 1-8 . https://doi.org/10.1103/PhysRevB.106.214201
Physical Review B

Isolated quantum systems typically follow the eigenstate thermalization hypothesis, but there are exceptions, such as many-body localized (MBL) systems and quantum many-body scars. Here, we present the study of a weak violation of MBL due to a specia

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1598f20643f378d49f7a6b20666e90ac

Many-Body Delocalization via Emergent Symmetry

Autor: Anne E. B. Nielsen, Roderich Moessner, N. S. Srivatsa

Publikováno v: Srivatsa, N S, Moessner, R & Nielsen, A E B 2020, ' Many-Body Delocalization via Emergent Symmetry ', Physical Review Letters, vol. 125, no. 24, 240401 . https://doi.org/10.1103/PhysRevLett.125.240401
Physical Review Letters

Many-body localization (MBL) provides a mechanism to avoid thermalization in many-body quantum systems. Here, we show that an emergent symmetry can protect a state from MBL. Specifically, we propose a ${\mathbb{Z}}_{2}$ symmetric model with nonlocal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8702e2e99d23a72acd809fd41768e0c
https://pure.au.dk/ws/files/224099593/PhysRevLett.125.240401.pdf

Disordered Haldane-Shastry model

Autor: N. S. Srivatsa, Shriya Pai, Anne E. B. Nielsen

Publikováno v: Physical Review B
Pai, S, Srivatsa, N S & Nielsen, A E B 2020, ' Disordered Haldane-Shastry model ', Physical Review B, vol. 102, 035117 .

The Haldane-Shastry model is one of the most studied interacting spin systems. The Yangian symmetry makes it exactly solvable, and the model has semionic excitations. We introduce disorder into the Haldane-Shastry model by allowing the spins to sit a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c256bff07e008a891d68491326852496
https://hdl.handle.net/21.11116/0000-0007-446D-321.11116/0000-0007-446F-1

Quasiparticles as detector of topological quantum phase transitions

Autor: Anne E. B. Nielsen, N. S. Srivatsa, Julia Wildeboer, Sourav Manna

Publikováno v: Manna, S, Srivatsa, N S, Wildeboer, J & Nielsen, A E B 2020, ' Quasiparticles as detector of topological quantum phase transitions ', Physical Review Research, vol. 2, 043443 . https://doi.org/10.1103/PhysRevResearch.2.043443
Physical Review Research

A number of tools have been developed to detect topological phase transitions in strongly correlated quantum systems. They apply under different conditions, but do not cover the full range of many-body models. It is hence desirable to further expand

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c8ddb7717f44e1bde92275282a29611
https://pure.au.dk/portal/da/publications/quasiparticles-as-detector-of-topological-quantum-phase-transitions(45f41f4a-6b88-4d2e-a256-a149b281fd76).html