Analog quantum simulation of extremely sub-Ohmic spin-boson models
نویسندگان
چکیده
منابع مشابه
Quantum phase transitions in the sub-Ohmic spin-boson model: failure of the quantum-classical mapping.
The effective theories for many quantum phase transitions can be mapped onto those of classical transitions. Here we show that the naive mapping fails for the sub-Ohmic spin-boson model which describes a two-level system coupled to a bosonic bath with power-law spectral density, J(omega) proportional, variantomega(s). Using an epsilon expansion we prove that this model has a quantum transition ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2018
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.98.040303