On Wed, 9 Jul 2003, NM Research wrote:
P(t) - photons transmitted
P(r) - photons received
Symmetric Amplification of Light : P(t)P(r) whereby polarity of
each and every photon received is equivalent to the polarity of
the photon it has been amplified from - while maintaining
wavelength and frequency characteristics of the photon
transmitted ( the photon it has been amplified from ).
The importance of such a system is to sustain results obtained
from quantum computing or routing from filters in a system in
optical format, allowing for their redirecting to different
system memory addresses ( to be received after filteration /
confirmation by a photocell ).
This thing does not let itself be done. An amplifier with the
properties that you specify has to be linear (to maintain the
wavelength and frequency characteristics), and the quantum
machanical processes through which it must operate will result in an
additive Gaussian noise component with a _minimum_ power spectral
density of (G-1) h nu per polarization, where G is the power gain, h
is Planck's constant, and nu is the frequency. This spoils the
sorts of entangled states used in quantum computing.
If you wish to discuss this further let's take it off-line, as it is
not topical for the IETF list.
//cmh
