Squeezed quantum states of a harmonic oscillator in the problem of gravitational-wave detection

Journal Article · Wed Jun 01 04:00:00 EDT 1983 · Sov. Phys. - JETP (Engl. Transl.); (United States)

OSTI ID:5123931

Grishchuk, L P; Sazhin, M V

A quantum harmonic oscillator subjected to a resonant force action and to a parametric action is considered. Account is taken of the coupling of the oscillator with the thermostat (and with the zero-point oscillations). Explicit solutions of the Heisenberg equations are obtained for the creation and annihilation operators. Various methods of producing squeezed states in the oscillator are considered, and the most suitable for the registration of a weak (gravitational) force are chosen. Concrete estimates are obtained of the improvement of the sensitivity through the use of squeezed states and are obtained. The advantages and shortcomings of the squeezed-states technique and of quantum nondemolition measurements are compared. Possible uses of the squeezed-states technique are discussed.

• Research Organization: P. K. Shternberg State Astronomical Institute
• OSTI ID: 5123931
• Journal Information: Sov. Phys. - JETP (Engl. Transl.); (United States), Journal Name: Sov. Phys. - JETP (Engl. Transl.); (United States) Vol. 57:6; ISSN SPHJA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANNIHILATION OPERATORS
CREATION OPERATORS
ELECTRONIC EQUIPMENT
EQUIPMENT
GRAVITATIONAL WAVE DETECTORS
HARMONIC OSCILLATORS
HEISENBERG PICTURE
MATHEMATICAL OPERATORS
MEASURING INSTRUMENTS
OSCILLATORS
QUANTUM OPERATORS
RADIATION DETECTORS
SENSITIVITY