Heisenberg-limited single-mode quantum metrology in a superconducting circuit
Reaching a quantum advantage in metrology usually requires hard-to-prepare two-mode entangled states such as NOON states. Here, instead, the authors demonstrate single-mode phase estimation using Fock states superpositions in a superconducting qubit-oscillator system.
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2019-09-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-019-12290-7 |