scholarly journals Many-Body Physics from a Quantum Information Perspective

2012 ◽  
pp. 245-294 ◽  
Author(s):  
R. Augusiak ◽  
F. M. Cucchietti ◽  
M. Lewenstein
Keyword(s):  
Quantum Information ◽  
Many Body ◽  
Many Body Physics

scholarly journals Many-body physics from a quantum information perspective

2012 ◽  
pp. 340-383
Author(s):  
Maciej Lewenstein ◽  
Anna Sanpera ◽  
Verònica Ahufinger
Keyword(s):  
Quantum Information ◽  
Many Body ◽  
Many Body Physics

scholarly journals Quantum information and many body physics with cold atoms

2012 ◽  
Vol 57 (16) ◽  
pp. 1910-1918 ◽  
Author(s):  
XiaoFei Zhang ◽  
YaoHua Chen ◽  
GuoCai Liu ◽  
Wei Wu ◽  
Lin Wen ◽  
...  
Keyword(s):  
Quantum Information ◽  
Cold Atoms ◽  
Many Body ◽  
Many Body Physics

scholarly journals Entanglement and Disordered-Enhanced Topological Phase in the Kitaev Chain

Universe ◽  
2019 ◽  
Vol 5 (1) ◽  
pp. 33 ◽  
Author(s):  
Liron Levy ◽  
Moshe Goldstein
Keyword(s):  
Phase Diagram ◽  
Information Theory ◽  
Quantum Information ◽  
Critical Point ◽  
Entanglement Entropy ◽  
Quantum Information Theory ◽  
Topological Phase ◽  
Many Body ◽  
Zero Modes ◽  
Many Body Systems

In recent years, tools from quantum information theory have become indispensable in characterizing many-body systems. In this work, we employ measures of entanglement to study the interplay between disorder and the topological phase in 1D systems of the Kitaev type, which can host Majorana end modes at their edges. We find that the entanglement entropy may actually increase as a result of disorder, and identify the origin of this behavior in the appearance of an infinite-disorder critical point. We also employ the entanglement spectrum to accurately determine the phase diagram of the system, and find that disorder may enhance the topological phase, and lead to the appearance of Majorana zero modes in systems whose clean version is trivial.

scholarly journals Quantum many-body physics with ultracold polar molecules: Nanostructured potential barriers and interactions

2020 ◽  
Vol 102 (2) ◽  
Author(s):  
Andreas Kruckenhauser ◽  
Lukas M. Sieberer ◽  
Luigi De Marco ◽  
Jun-Ru Li ◽  
Kyle Matsuda ◽  
...  
Keyword(s):  
Polar Molecules ◽  
Many Body ◽  
Potential Barriers ◽  
Ultracold Polar Molecules ◽  
Many Body Physics

scholarly journals Complex Langevin and other approaches to the sign problem in quantum many-body physics

2020 ◽  
Author(s):  
C.E. Berger ◽  
L. Rammelmüller ◽  
A.C. Loheac ◽  
F. Ehmann ◽  
J. Braun ◽  
...  
Keyword(s):  
Many Body ◽  
Sign Problem ◽  
Many Body Physics
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