Strong Hilbert space fragmentation via emergent quantum drums in two dimensions

Strong Hilbert space fragmentation via emergent quantum drums in two dimensions

We introduce a disorder-free model of $S=1/2$ spins on the square lattice in a constrained Hilbert space where two up-spins are not allowed simultaneously on any two neighboring sites of the lattice. The interactions are given by ring-exchange terms on elementary plaquettes that conserve both the to...

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Bibliographic Details
Main Author:	Anwesha Chattopadhyay, Bhaskar Mukherjee, Krishnendu Sengupta, Arnab Sen
Format:	Article
Language:	English
Published:	SciPost 2023-06-01
Series:	SciPost Physics
Online Access:	https://scipost.org/SciPostPhys.14.6.146

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