Easily monitored entangled state

6 v 2 3 0 Se p 20 02 EASY MONITORED ENTANGLED STATE

We discuss the generation and monitoring of durable atomic entangled state via Raman-type process, which can be used in the quantum information processing .

Entangled State Monads

We present a monadic treatment of symmetric state-based bidirectional transformations, and show how it arises naturally from the well-known asymmetric lens-based account. We introduce two presentations of a concept we dub the “entangled” state monad, and prove their equivalence. As a step towards a unifying account of bidirectionality in general, we exhibit existing classes of statebased approa...

Entangled Solid-State Circuits

Entangled-Photon Virtual-State Spectroscopy

A new form of absorption spectroscopy is introduced in which the energy levels and matrix elements of virtual-state transitions in a medium are determined by the use of continuous-wave degenerate entangled photons without varying their wavelengths. Extractable spectroscopic information is embedded in the entangled-photon absorption cross section when measured over a range of entanglement and in...

Nonmaximally-entangled-state quantum photolithography

Many previous works on quantum photolithography are based on maximally-entangled states (MES). In this paper, we generalize the MES quantum photolithography to the case where two light beams share a N-photon nonmaximally-entangled state. we investigate the correlations between quantum entanglement and quantum photolithography. It is shown that for nonlocal entanglement between the two light bea...