Squeezing, Entanglement and Teleportation - LIGO

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Summary

• Experiments were introduced where the

quantum noise of a cw laser beam was

manipulated and characterized.

• Squeezing and entanglement of quadrature

operators were demonstrated.

• Entanglement was used to teleport a side-

band modulation signal of a cw laser beam.

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Teleporter Input and Output States ˆX 1 ˆX 2 Classical limit No-cloning limit ˆX 1 ˆX 2 Classical limit No-cloning limit Perfect teleportation W.P. Bowen et al., Phys. Rev. A, accepted (2003) Entanglement 12

Summary • Experiments were introduced where the quantum noise of a cw laser beam was manipulated and characterized. • Squeezing and entanglement of quadrature operators were demonstrated. • Entanglement was used to teleport a side- band modulation signal of a cw laser beam. 13

Page 1 and 2: Manipulating the Quantum Noise : Sq
Page 3 and 4: Squeezed beam 3
Page 5 and 6: The Homodyne Detector Interfering 5
Page 7 and 8: Quadrature Noise Operators δXˆ δ
Page 9 and 10: Quadrature Entanglement Loss δ ˆ
Page 11: Teleportation of a Quadrature State

Squeezing, Entanglement and Teleportation - LIGO

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