Hamiltonian extensions in quantum metrology
We study very generally towhat extent the uncertainty with which a phase shift can be estimated in quantum metrology can be reduced by extending the Hamiltonian that generates the phase shift to an ancilla system with a Hilbert space of arbitrary dimension, and allowing arbitrary interactions betwee...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2017-09-01
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| Series: | Quantum Measurements and Quantum Metrology |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/qmetro-2017-0002 |