Variational study of the two‐impurity spin–boson model with a common Ohmic bath : ground‐state phase transitions
By means of a trial wave function, the multi‐D1 ansatz, extensive variational calculations with more than 10 000 parameters are carried out to study quantum phase transitions in the ground states of a two‐impurity system embedded in a common Ohmic bath of bosons. Quantum criticality in both the impu...
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Main Authors: | , , , |
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Other Authors: | |
Format: | Article |
Language: | English |
Published: |
2020
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Subjects: | |
Online Access: | https://hdl.handle.net/10356/137030 |
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Institution: | Nanyang Technological University |
Language: | English |
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