Quantum phase slips and thermal fluctuations in one-dimensional
disordered density waves
Keyword(s):
The low temperature phase diagram of 1D disordered quantum systems like charge or spin density waves, superfluids, and related systems is considered by a full finite T renormalization group approach for the first time. At zero temperature the consideration of quantum phase slips leads to a new scenario for the unpinning (delocalization) transition. In the strong pinning limit the model is solved exactly. At finite T a rich crossover diagram with various scaling regions is found which reflects the zero temperature quantum critical behavior.
Keyword(s):
2017 ◽
Vol 226
(12)
◽
pp. 2815-2827
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1994 ◽
Vol 194-196
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pp. 499-500
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