Eigenstate thermalization and its breakdown in quantum spin chains with inhomogeneous interactions
Eigenstate thermalization and its breakdown in quantum spin chains with inhomogeneous interactions
The eigenstate thermalization hypothesis (ETH) is a successful theory that establishes the criteria for ergodicity and thermalization in isolated quantum many-body systems. In this work, we investigate the thermalization properties of a spin-$1/2$ XXZ chain with linearly inhomogeneous interactions. We demonstrate that introduction of the inhomogeneous interactions leads to an …