scholarly journals One-Dimensional Disordered Density Waves and Superfluids: The Role of Quantum Phase Slips and Thermal Fluctuations

2002 ◽  
Vol 88 (25) ◽  
Author(s):  
Andreas Glatz ◽  
Thomas Nattermann
2002 ◽  
Vol 12 (9) ◽  
pp. 123-126
Author(s):  
A. Glatz ◽  
T. Nattermann

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.


Author(s):  
C. D'Errico ◽  
S. Scaffidi Abbate ◽  
G. Modugno

Quantum phase slips (QPS) are the primary excitations in one-dimensional superfluids and superconductors at low temperatures. They have been well characterized in most condensed-matter systems, and signatures of their existence have been recently observed in superfluids based on quantum gases too. In this review, we briefly summarize the main results obtained on the investigation of phase slips from superconductors to quantum gases. In particular, we focus our attention on recent experimental results of the dissipation in one-dimensional Bose superfluids flowing along a shallow periodic potential, which show signatures of QPS. This article is part of the themed issue ‘Breakdown of ergodicity in quantum systems: from solids to synthetic matter’.


2013 ◽  
Vol 15 (9) ◽  
pp. 095014 ◽  
Author(s):  
Adem Ergül ◽  
Jack Lidmar ◽  
Jan Johansson ◽  
Yağız Azizoğlu ◽  
David Schaeffer ◽  
...  

2017 ◽  
Vol 226 (12) ◽  
pp. 2815-2827 ◽  
Author(s):  
Simona Scaffidi Abbate ◽  
Lorenzo Gori ◽  
Massimo Inguscio ◽  
Giovanni Modugno ◽  
Chiara D’Errico

2010 ◽  
Vol 6 (8) ◽  
pp. 565-566 ◽  
Author(s):  
David Haviland

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