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Open Quantum Systems Decoherence
Quantum channel-estimation with particle loss: GHZ versus W states
arXiv
Authors: Julien Mathieu Elias Fraïsse, Daniel Braun
Year
2016
Paper ID
7867
Status
Preprint
Abstract Read
~2 min
Abstract Words
62
Citations
N/A
Abstract
We consider quantum channel-estimation for depolarizing channels and phase-flip channels extended by ancilla qubits and fed with a GHZ or W state. After application of the channel one or several qubits can be lost, and we calculate the impact of the loss on the quantum Fisher information that determines the smallest uncertainty with which the parameters of these channels can be estimated.
Why This Paper Matters
- This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
- It adds a 2016 reference point for readers tracking recent quantum research.
- We consider quantum channel-estimation for depolarizing channels and phase-flip channels extended by ancilla qubits and fed with a GHZ or W state.
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