Entangled States in Interferometry

• Authors: B. Hessmo , J. Söderholm , G. Björk
• Languages of publication: EN

Abstracts

EN

We show how some entangled quantum states can be used to improve interferometric measurements. We describe why Schrödinger-cat states are very sensitive to relative-phase shifts and why relative-phase states as described by A. Luis and L.L. Sánchez-Soto resolve the interval [0, 2π] well. We also describe how the quantum concept of well-defined relative-phase and the classical visibility of an interference pattern are related.

Keywords

EN

42.50.Dv

Discipline

• 42.50.Dv: Quantum state engineering and measurements(see also 03.65.Ud Entanglement and quantum nonlocality, e.g., EPR paradox, Bells inequalities, GHZ states, etc.)

• Journal: Acta Physica Polonica A
• Year: 2002
• Volume: 101
• Issue: 1
• Pages: 37-46

Dates

published

2002-01

received

2001-06-28

Contributors

author

B. Hessmo

• Department of Microelectronics and Information Technology, Royal Institute of Technology, 16440 Kista, Sweden

author

J. Söderholm

• Department of Microelectronics and Information Technology, Royal Institute of Technology, 16440 Kista, Sweden

author

G. Björk

• Department of Microelectronics and Information Technology, Royal Institute of Technology, 16440 Kista, Sweden

References

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Identifiers

DOI

10.12693/APhysPolA.101.37