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Thermodynamic Metrics and Black Hole Physics
Jan Åman, Ingemar Bengtsson, Narit Pidokrajt
We give a brief survey of thermodynamic metrics, in particular the Hessian of the entropy function, and how they apply to black hole thermodynamics. We then provide a detailed disc…
Geometric Phases for Mixed States of the Kitaev Chain
Ole Andersson, Ingemar Bengtsson, Marie Ericsson +1
The Berry phase has found applications in building topological order parameters for certain condensed matter systems. The question whether some geometric phase for mixed states can…
Cliffordtori and unbiased vectors
Ole Andersson, Ingemar Bengtsson
The existence problem for mutually unbiased bases is an unsolved problem in quantum information theory. A related question is whether every pair of bases admits vectors that are un…
Black holes: Their large interiors
Ingemar Bengtsson, Emma Jakobsson
Christodoulou and Rovelli have remarked on the large interiors possessed by static black holes. We amplify their remarks, and extend them to the spinning case.