Transition between dissipatively stabilized helical states
Essink, Simon (Author), Wolff, Stefan (Author), Schütz, Gunter M. (Author), Kollath, Corinna (Author), Popkov, Vladislav (Author)

.pdfPDF - Presentation file, Download (585,26 KB)
MD5: E5132451DEDA801D6848914FFC67F52D
URLURL - Source URL, Visit https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.2.022007 This link opens in a new window

We analyze a XXZ spin-1/2 chain which is driven dissipatively at its boundaries. The dissipative driving is modeled by Lindblad jump operators which only act on both boundary spins. In the limit of large dissipation, we find that the boundary spins are pinned to a certain value and at special values of the interaction anisotropy, the steady states are formed by a rank-2 mixture of helical states with opposite winding numbers. Contrarily to previous stabilizations of topological states, these helical states are not protected by a gap in the spectrum of the Lindbladian. By changing the anisotropy, the transition between these steady states takes place viamixed states of higher rank. In particular, crossing the value of zero anisotropy a totally mixed state is found as the steady state. The transition between the different winding numbers via mixed states can be seen in light of the transitions between different topological states in dissipatively driven systems. The results are obtained by developing a perturbation theory in the inverse dissipative coupling strength and using the numerical exact diagonalization and matrix product state methods.

Keywords:quantum mechanics
Tipology:1.01 - Original Scientific Article
Organization:FMF - Faculty of Mathematics and Physics
Number of pages:Str. 022007-1-022007-7
Numbering:Vol. 2, iss. 2
ISSN on article:2643-1564
DOI:10.1103/PhysRevResearch.2.022007 This link opens in a new window
COBISS.SI-ID:25256707 This link opens in a new window
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
AddThis uses cookies that require your consent. Edit consent...

Record is a part of a journal

Title:Physical review research
Publisher:American Phyisical Society
COBISS.SI-ID:32822823 This link opens in a new window

Document is financed by a project

Funder:EC - European Commission
Funding Programme:H2020
Project no.:694544
Name:Open Many-body Non-Equilibrium Systems


License:CC BY 4.0, Creative Commons Attribution 4.0 International
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:17.08.2020

Secondary language

Keywords:kvantna mehanika

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:


Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
There are no comments!