Constructing Quantum Spin Liquids Using Combinatorial Gauge Symmetry.
@article{Chamon2020ConstructingQS, title={Constructing Quantum Spin Liquids Using Combinatorial Gauge Symmetry.}, author={C. Chamon and D. Green and Z. Yang}, journal={Physical review letters}, year={2020}, volume={125 6}, pages={ 067203 } }
We introduce the notion of combinatorial gauge symmetry-a local transformation that includes single spin rotations plus permutations of spins (or swaps of their quantum states)-that preserve the commutation and anticommutation relations among the spins. We show that Hamiltonians with simple two-body interactions contain this symmetry if the coupling matrix is a Hadamard matrix, with the combinatorial gauge symmetry being associated with the automorphism of these matrices with respect to… Expand
4 Citations
Experimental Realization of Spin Liquids in a Programmable Quantum Device
- Physics, Computer Science
- 2020
- 4
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