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cond-mat.str-el2018
Correlation effects in spin models in the presence of a spin bath
Álvaro Gómez-León, Tim Cox, Philip Stamp
We analyze the effect of a bath of spins interacting with a spin system in terms of the equation of motion technique. We show that this formalism can be used with general spin syst…
quant-ph2018★ 5 cited
Partitioned Density Matrices and Entanglement Correlators
Timothy Cox, Philip C. E. Stamp
The density matrix of a non-relativistic quantum system, divided into sub-systems, is rewritten in terms of the set of all partitioned density matrices for the system. For the…