A connection between R-invariants and Yang-Baxter R-operators in $$ \mathcal{N} $$ = 4 super-Yang-Mills theory

Abstract

The BCFW recursion relation in N = 4 super-Yang-Mills theory is solved using Yang-Baxter R-operators in the NMHV sector. Explicit expressions for Rinvariants are obtained in terms of the chains of R-operators acting on an appropriate basic state.

Effective Hamiltonians for discrete time crystals

“…More details on the effective Hamiltonian that we consider in this work and its relation to original quantum time crystals can be found in [3]. We also note, that one could consider generalized spin models that are studied in high-energy physics, see for example [7].…”