Observability of quantum pinch effect in the magnetized semiconducting quantum wires

We report on a two-component, cylindrical, quasi-one-dimensional quantum plasma subjected to

a radial confining harmonic potential and an applied magnetic field in the symmetric gauge. It is

demonstrated that such a system as can be realized in semiconducting quantum wires offers an

excellent medium for observing the quantum pinch effect at low temperatures. An exact analytical

solution of the problem allows us to make significant observations: surprisingly, in contrast to the

classical pinch effect, the particle density as well as the current density displays a determinable

maximum before attaining a minimum at the surface of the quantum wire. The effect will persist as

long as the equilibrium pair density is sustained. Therefore, the technological promise that emerges

is the route to the precise electronic devices that will control the particle beams at the nanoscale.