quantum noise การใช้

• Quantum noise becomes important when considering the amplification of a small signal.
• The uncertainty principle sets the lower bound of quantum noise in an amplifier.
• The red dots on the x-axis trace out the boundaries of the quantum noise in Figure 1.
• Therefore, one can interpret the quantum noise of a coherent state as being due to the vacuum fluctuations.
• Equation is essentially a measure of the length required for the MI gain to amplify the background quantum noise into solitons.
• In physics, "'quantum noise "'refers to the uncertainty of a physical quantity that is due to its quantum origin.
• He has pioneered techniques for sensitive measurements beyond the quantum noise limit, for the improvement of optical sensors, interferometers, optical communication and data storage.
• This level of gain is sufficient that quantum noise, due to the limited number of X-ray photons, is a significant factor limiting image quality.
• There were even claims that an amplifier based on photorefractive crystals can have less than the minimum quantum noise that is typical for optical amplifiers of any kind.
• The signal of the ring as a rotation detector is used, whereas the all-pervasive white, quantum noise is the fundamental noise of the ring.
• This entanglement appears as quantum noise; the uncertainty of the field at the output is larger than that of the coherent state with the same amplitude and phase.
• In certain situations, quantum noise appears as shot noise; for example, most optical communications use amplitude modulation, and thus, the quantum noise appears as shot noise only.
• In certain situations, quantum noise appears as shot noise; for example, most optical communications use amplitude modulation, and thus, the quantum noise appears as shot noise only.
• As can be seen in the illustrations, in contrast to a coherent state, the quantum noise for a squeezed state is no longer independent of the phase of the light wave.
• For the case of uncertainty in the electric field in some lasers, the quantum noise is not just shot noise; uncertainties of both amplitude and phase contribute to the quantum noise.
• For the case of uncertainty in the electric field in some lasers, the quantum noise is not just shot noise; uncertainties of both amplitude and phase contribute to the quantum noise.
• In 2002, he was one of three members of the organizing committee of the NATO Advanced Research Workshop " Quantum Noise in Mesoscopic Physics ", held in Delft, the Netherlands.
• This criterion has two factors, the first factor is the spin noise reduction, i . e . how much the quantum noise in J _ z is reduced relative to the coherent ( unentangled ) state.
• By injecting such states into the kilometer-scale Michelson interferometer of the LIGO detectors, her group greatly improved the sensitivity of the detector by reducing quantum noise; such squeezed states also have many other applications in experimental physics.
• Note that for optical photons, thermal noise can be neglected due to the high frequencies, such that the optical input noise can be described by quantum noise only ( this does not hold for microwave implementations of the optomechanical system ).