Enhanced quantum communication via optical refocusing

Enhanced quantum communication via optical refocusing

Citation Lupo, Cosmo et al. " Enhanced quantum communication via optical refocusing. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters.

6.453 Quantum Optical Communication

6.453 Quantum Optical Communication

Optical communication with two-photon coherent states—Part II: photoemissive detection and structured receiver performance, " IEEE Trans. Optical communication with two-photon coherent states—Part III: quantum measurements realizable with photoemissive detec­ tors, " IEEE Trans. Quantum noise and excess noise in optical homodyne and het­ erodyne receivers, " IEEE J.

Quantum-enhanced optical-phase tracking.

Tracking a randomly varying optical phase is a key task in metrology, with applications in optical communication. The best precision for optical-phase tracking has until now been limited by the quantum vacuum fluctuations of coherent light. Here, we surpass this coherent-state limit by using a continuous-wave beam in a phase-squeezed quantum state. Unlike in previous squeezing-enhanced metrolog...

Multiple-user quantum optical communication

A fundamental understanding of the information carrying capacity of optical channels requires the signal and physical channel to be modeled quantum mechanically. This thesis considers the problems of distributing multi-party quantum entanglement to distant users in a quantum communication system and determining the ability of quantum optical channels to reliably transmit information. A recent p...