Complexity and scaling in quantum quench in 1 + 1 dimensional fermionic field theories
@article{Liu2019ComplexityAS, title={Complexity and scaling in quantum quench in 1 + 1 dimensional fermionic field theories}, author={Sinong Liu}, journal={Journal of High Energy Physics}, year={2019}, volume={2019} }
We consider the scaling behavior of circuit complexity under quantum quench in an a relativistic fermion field theory on a one dimensional spatial lattice. This is done by finding an exactly solvable quench protocol which asymptotes to massive phases at early and late times and crosses a critical point in between. We find a variety of scaling behavior as a function of the quench rate, starting with a saturation for quenches at the lattice scale, a “fast quench scaling” at intermediate rate and…
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