The effect of the initial state and of parametric pumping on the sensitivity of a gravitational detector is discussed in the quantum limit The possibility of a considerable increase in sensitivity in the parametric resonance regime is demonstrated

This is a review of publications on classical and quantum electrodynamics in cavities with moving boundaries (in the quantum case this subject is labeled frequently as "nonstationary Casimir effect" or "dynamical Casimir effect"), from 1921 to October of 2000, with an emphasis on analytical results related to cavities with resonantly oscillating boundaries.

Efficiency of a gravitational detector with interference of quantum states

Nonstationary Casimir Effect and analytical solutions for quantum fields in cavities with moving boundaries

We consider an analog of particle production in a quartic $O(N)$ quantum oscillator with time-dependent frequency, which is a toy model of particle production in the dynamical Casimir effect and de Sitter space. We calculate exact quantum averages, Keldysh propagator, and particle number using two different methods. First, we employ a kind of rotating wave approximation to estimate these quantities for small deviations from stationarity. Second, we extend these results to arbitrarily large deviations using the Schwinger-Keldysh diagrammatic technique. We show that in strongly nonstationary situations, including resonant oscillations, loop corrections to the tree-level expressions effectively result in an additional degree of freedom, $N\ensuremath{\rightarrow}N+\frac{3}{2}$, which modifies the average number and energy of created particles.

Particle creation in nonstationary large N quantum mechanics

How does the physics community deal with the subsequent work of a scientist whose earlier work has been regarded as incorrect? An interesting case of this involves Joseph Weber whose claim to have observed gravitational waves was rejected by virtually all of the physics community, although Weber himself continued to defend his work until his death in 2000. In the course of this defense Weber made a startling suggestion regarding the scattering of neutrinos. I will summarize the history of gravity waves including the rejection of Weber’s claim around 1975, his later work on gravity waves, and examine the reaction of the physics community to his neutrino hypothesis.

Efficiency of a gravitational detector with interference of quantum states

Citations

Nonstationary Casimir Effect and analytical solutions for quantum fields in cavities with moving boundaries

Particle creation in nonstationary large N quantum mechanics

Gravity Waves and Neutrinos: The Later Work of Joseph Weber

Related Papers (5)

Optimal quantum measurements in detectors of gravitation radiation

Advanced quantum techniques for future gravitational-wave detectors

Quantum Locking of Mirrors in Interferometers

Energetic Quantum Limit in Large-Scale Interferometers

QND measurements for future gravitational-wave detectors