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Search: authors:"Jeong Ryeol Choi"

5 papers found.
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Superposition states for quantum nanoelectronic circuits and their nonclassical properties

. Nanoelectronic circuit; Displaced number state; Superposition; Interference; Wave function - & Jeong Ryeol Choi One of the greatest challenges for modern electronic science is miniaturizing electronic devices

Time behavior of a Gaussian wave packet accompanying the generalized coherent state for the inverted oscillator

A Gaussian wave packet of the inverted oscillator is investigated using the invariant operator method together with the unitary transformation method. A simple wave packet directly derived from the eigenstates of the invariant operator of the system corresponds to a plane wave that is fully delocalized. However, we can construct a weighted wave packet in terms of such plane waves, ...

Displacing, squeezing, and time evolution of quantum states for nanoelectronic circuits

Abstract The time behavior of DSN (displaced squeezed number state) for a two-dimensional electronic circuit composed of nanoscale elements is investigated using unitary transformation approach. The original Hamiltonian of the system is somewhat complicated. However, through unitary transformation, the Hamiltonian became very simple enough that we can easily treat it. By executing ...

Wigner distribution function of superposed quantum states for a time-dependent oscillator-like Hamiltonian system

A phase space distribution function of quantum mechanics, so-called the Wigner distribution function (WDF), for superposed states of the general time-dependent oscillator-like Hamiltonian system is investigated. Superposition of not only two different coherent states but also two different squeezed states are considered respectively. Analytical representation of WDF for the ...