What is quantum fluctuation????
_____________________
Good night Nik
May the next morning bring a lot of happiness in your life, a lot of positive energy in you and a new journey to your grand success.
Good night.
( ╹▽╹ )
Answers
Explanation:
A more precise treatment of quantum fluctuations in a laser interferometer begins with treating the electric field as a quantum variable (Caves, 1981; Danilishin and Khalili, 2012). Since all cavities are well matched to each other, the field inside an interferometer can be treated as a single mode: the carrier field coherent state can be treated as a classical field, and the detector noise is determined by the vacuum fluctuation at audio frequencies around the carrier. The contributions from the upper and lower audio sidebands can be combined into two quadratures, non-commuting quantum operators, that are therefore subject to the Heisenberg uncertainty principle.
A coherent state of light, like the pump laser field, or a vacuum state, has an equal and minimum uncertainty in both quadratures (see Fig. 25A and B). However, an interferometer operating with a homodyne readout scheme converts a GW signal into an amplitude fluctuation of the field at the dark port. Therefore only the uncertainty in the quadrature corresponding to the GW signal matters, and the quantum noise of the detector is improved if a squeezed state of light can be used (see Fig. 25C and D). Note that to satisfy the uncertainty principle, whenever the fluctuations are reduced on one quadrature, they must be increased on the orthogonal one.
Answer:
are yaar...ye Kit kon hai...har baar meri questions delete kar deta hai