Coherent Superposition States as Quantum Rulers

Details Coherent Superposition States as Quantum Rulers Coherent Superposition States as Quantum Rulers

2001-09-21

arxiv.org/abs/quant-ph/0109106v2

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.65.042313

We explore the sensitivity of an interferometer based on a quantum circuit
for coherent states. We show that its sensitivity is at the Heisenberg limit.
Moreover we show that this arrangement can measure very small length intervals.

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