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Add to Calendar 9/22/2020 4:00 pm 9/22/2020 America/Chicago Condensed Matter Journal Club - Topological Entanglement Entropy and Quantum Spin Liquids DESCRIPTION:

Quantum spin liquids (QSL) are phases that show strongly interacting spins often observed in frustrated magnets. QSLs carry interesting properties like long-ranged entanglement and fractional statistics. Furthermore, it is known that even at low (or zero) temperatures, QSL does not have classical Landau order parameters to characterize the phase. However, recent development in topological entanglement entropy allows us to detect such topological orders in QSLs, and one can even extract fractional braiding statistics from anyonic quasiparticles. I will start by introducing what is (topological) entanglement entropy. Then I will discuss how one can diagnose QSLs and extract braiding statistics using such tool with examples.

The Zoom link will be sent to the Graduate Student and PDRA mailing lists. If you are not on one of those lists and are interested in attending, please email Mark Hirsbrunner at hrsbrnn2@illinois.edu for the link.

\n\nSPEAKER: Shengzhu Yin
Via ZOOM false

Condensed Matter Journal Club - Topological Entanglement Entropy and Quantum Spin Liquids

Speaker Shengzhu Yin
Date: 9/22/2020
Time: 4 p.m.
Location: Via ZOOM
Sponsor: CM Journal Club
Event Type: Seminar/Symposium
 

Quantum spin liquids (QSL) are phases that show strongly interacting spins often observed in frustrated magnets. QSLs carry interesting properties like long-ranged entanglement and fractional statistics. Furthermore, it is known that even at low (or zero) temperatures, QSL does not have classical Landau order parameters to characterize the phase. However, recent development in topological entanglement entropy allows us to detect such topological orders in QSLs, and one can even extract fractional braiding statistics from anyonic quasiparticles. I will start by introducing what is (topological) entanglement entropy. Then I will discuss how one can diagnose QSLs and extract braiding statistics using such tool with examples.

The Zoom link will be sent to the Graduate Student and PDRA mailing lists. If you are not on one of those lists and are interested in attending, please email Mark Hirsbrunner at hrsbrnn2@illinois.edu for the link.

To request disability-related accommodations for this event, please contact the person listed above, or the unit hosting the event.

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