Quantum noise in differential-type gravitational-wave interferometer and signal recycling

Document #:

LIGO-P070120-x0

Document type:

P - Publications

Abstract:

In the sensitivity of laser interferometer gravitational-wave detectors, there exists the standard quantum limit (SQL), derived from Heisenberg's uncertainty relation. The SQL can be overcome using the quantum correlation between shot noise and radiation-pressure noise. One of the methods to overcome SQL, signal recycling, is considered so far only in a recombined-type interferometer such as Advanced-LIGO, LCGT, and GEO600. In this paper, we investigated quantum noise and signal recycling in a differential-type interferometer. We also applied it to a real detector and compared the sensivity with a recombined type.

Files in Document:

• P070120-00.pdf (388.7 kB)

Other Files:

• P070120-P.pdf (887.6 kB)

Topics:

• Document Migration from the old DCC
• Public relations

Authors:

• Seiji Kawamura
• Atsushi Nishizawa
• Masa-aki Sakagami

Notes and Changes:

Rev P070120-00-Z:
- Full document number: LIGO-P070120-00-Z
- Author(s): Atsushi Nishizawa; Seiji Kawamura; Masa-aki Sakagami
- Document date: 2007-10-17
- Document received date: 2007-10-17
- Document entry date: 2007-10-17

Publication Information:

http://www.iop.org/EJ/abstract/1742-6596/122/1/012019