Counting edge modes via dynamics of boundary spin impurities

6533b835fe1ef96bd129ea61

RESEARCH PRODUCT

Counting edge modes via dynamics of boundary spin impurities

Umar Javed Jamir Marino Vadim Oganesyan Michael Kolodrubetz

subject

Quantum Physics Statistical Mechanics (cond-mat.stat-mech)FOS: Physical sciences Quantum Physics (quant-ph)Condensed Matter - Statistical Mechanics

description

We study dynamics of the one-dimensional Ising model in the presence of static symmetry-breaking boundary field via the two-time autocorrelation function of the boundary spin. We find that the correlations decay as a power law. We uncover a dynamical phase diagram where, upon tuning the strength of the boundary field, we observe distinct power laws that directly correspond to changes in the number of edge modes as the boundary and bulk magnetic field are varied. We suggest how the universal physics can be demonstrated in current experimental setups, such as Rydberg chains.

year	journal	country	edition	language
2021-11-22

http://arxiv.org/abs/2111.11428

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