Quantum parameter estimation with many-body fermionic systems and application to the Hall effect
We calculate the quantum Fisher information for a generic many-body fermionic system in a pure state depending on a parameter. We discuss the situations where the parameter is imprinted in the basis states, in the state coefficients, or both. In the case where the parameter dependence of coefficient...
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| Format: | Article |
| Language: | English |
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SciPost
2024-03-01
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| Series: | SciPost Physics |
| Online Access: | https://scipost.org/SciPostPhys.16.3.085 |