A QUANTUM TRANSMITTING SCHRÖDINGER–POISSON SYSTEM

A quantum transmitting Schrödinger-Poisson system

We consider a stationary Schrödinger-Poisson system on a bounded interval of the real axis. The Schrödinger operator is defined on the bounded domain with transparent boundary conditions. This allows to model a non-zero current flow trough the boundary of the interval. We prove that the system always admits a solution and give explicit a priori estimates for the solutions. 2000 Mathematics Subj...

Transmitting Quantum Information Reliably across Various Quantum Channels

Transmitting quantum information across quantum channels is an important task. However quantum information is delicate, and is easily corrupted. We address the task of protecting quantum information from an information theoretic perspective – we encode some message qudits into a quantum code, send the encoded quantum information across the noisy quantum channel, then recover the message qudits ...

Transmitting qudits through larger quantum channels

By a quantum channel is intended [1, 2] a completely positive and trace-precerving linear map Φ : σ(H) → σ(H), where σ(H) is a set of states in a Hilbert space H with dimH = n ≤ +∞. Even for a finite dimension n < +∞ there is a number of difficult problems concerning the construction of optimal transmission of the information through a quantum channel. The infinite dimensional case we are espec...

Coherent Control of Quantum Entropy via Quantum Interference in a Four-Level Atomic System

The time evaluation of quantum entropy in a four-level double- type atomic system is theoretically investigated. Quantum entanglement of the atom and its spontaneous emission fields is then discussed via quantum entropy. It is found that the degree of entanglement can be increased by the quantum interference induced by spontaneous emission. The phase dependence of the atom-field entanglement is...

Narrow Band Transmitting-Receiving Telescope System