Quantum mechanical photoncount formula derived by entangled state representation
Quantum mechanical photoncount formula derived by entangled state representation
By introducing the thermo entangled state representation, we derive four new photocount distribution formulas for a given light field density operator. It is shown that these new formulas, which are convenient to calculate the photocount, can be expressed as integrations over a Laguerre—Gaussian function with a characteristic function, Wigner function, …