Entangled States in Interferometry

• Published in: Acta physica Polonica, A Vol. 101; no. 1; pp. 37 - 46
• Main Authors: Hessmo, B., Söderholm, J., Björk, G.
• Format: Journal Article
• Language: English
• Published: 01.01.2002
• Subjects: relative phase

We show how some entangled quantum states can be used to improve interferometric measurements. We describe why Schrodinger-cat states are very sensitive to relative-phase shifts and why relative-phase states as described by A. Luis and L.L. Sanchez-Soto resolve the interval [0, 2pi] well. We also de...