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Open Quantum Systems Decoherence
Activated and non activated dephasing demonstrated in NV center dynamics
arXiv
Authors: E. Torrontegui, R. Kosloff
Year
2015
Paper ID
26333
Status
Preprint
Abstract Read
~2 min
Abstract Words
83
Citations
N/A
Abstract
We analyze different decoherence processes in a system coupled to a bath. Apart from the well known standard dephasing mechanism which is temperature dependent an alternative mechanism is presented, the spin-swap dephasing which does not need initial bath activation and is temperature independent. We show that for dipolar interaction the separation of time scales between system and bath can not produce pure dephasing, the process being accompained by dissipation. Activated and non activated dephasing processes are demonstrated in a diamond nitrogen-vacancy (NV) center.
Why This Paper Matters
- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
- It adds a 2015 reference point for readers tracking recent quantum research.
- We analyze different decoherence processes in a system coupled to a bath.
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