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cond-mat.str-el2026
Probing Impurity Quantum Criticality with Entanglement Witnesses
Mateo Cárdenes Wuttig, Andrew J. Millis
Entanglement is a defining feature of quantum mechanics, and its relation to quantum criticality is of considerable current interest. Here we show that measurable spin and charge f…
cond-mat.str-el2025
From One to Two Dimensions: Magnetic Phases in Weakly Coupled Spin Ladders
Mateo Cárdenes Wuttig, Andrew J. Millis
A large variety of materials can be approximately described by means of spin-1/2 Heisenberg ladders. Here, the Density Matrix Renormalization Group (DMRG) algorithm together with a…