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Efficient Basis Formulation for (1+1)-Dimensional SU(2) Lattice Gauge Theory: Spectral calculations with matrix product states
Mari Carmen Bañuls, Krzysztof Cichy, J. Ignacio Cirac +2
We propose an explicit formulation of the physical subspace for a (1+1)-dimensional SU(2) lattice gauge theory, where the gauge degrees of freedom are integrated out. Our formulati…
The multi-flavor Schwinger model with chemical potential - Overcoming the sign problem with Matrix Product States
Mari Carmen Bañuls, Krzysztof Cichy, J. Ignacio Cirac +3
During recent years there has been an increasing interest in the application of matrix product states, and more generally tensor networks, to lattice gauge theories. This non-pertu…
Density Induced Phase Transitions in the Schwinger Model: A Study with Matrix Product States
Mari Carmen Bañuls, Krzysztof Cichy, J. Ignacio Cirac +2
We numerically study the zero temperature phase structure of the multiflavor Schwinger model at nonzero chemical potential. Using matrix product states, we reproduce analytical res…