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Quantum Algorithms
Quantum criticality and dynamical instability in the kicked top
arXiv
Authors: V. M. Bastidas, P. Perez-Fernandez, M. Vogl, T. Brandes
Year
2013
Paper ID
33059
Status
Preprint
Abstract Read
~2 min
Abstract Words
65
Citations
N/A
Abstract
We investigate precursors of critical behavior in the quasienergy spectrum due to the dynamical instability in the kicked top. Using a semiclassical approach, we analytically obtain a logarithmic divergence in the density of states, which is analogous to a continuous excited state quantum phase transition in undriven systems. We propose a protocol to observe the cusp behavior of the magnetization close to the critical quasienergy.
Why This Paper Matters
- It adds a 2013 reference point for readers tracking recent quantum research.
- We investigate precursors of critical behavior in the quasienergy spectrum due to the dynamical instability in the kicked top.
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