Information capacity of continuous variable measurement channel

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Continuous variable private quantum channel

In this paper we introduce the concept of quantum private channel within the continuous variables framework (CVPQC) and investigate its properties. In terms of CVPQC we naturally define a “maximally” mixed state in phase space together with its explicit construction and show that for increasing number of encryption operations (which sets the length of a shared key between Alice and Bob) the enc...

متن کامل

Information Channel Capacity

A communication channel consists of a transmitter, a receiver, and some medium between these two (possibly vacuum) that supports transmission of signals. In most cases, the transmitter and/or receiver have limited bandwidth, while the medium could transmit pulses of arbitrarily small time width. Hence, “channel capacity” is more a property of the transmitter and receiver, than of the signal-tra...

متن کامل

Continuous-variable quantum information processing

Observables of quantum systems can possess either a discrete or a continuous spectrum. For example, upon measurements of the photon number of a light state, discrete outcomes will result whereas measurements of the light’s quadrature amplitudes result in continuous outcomes. If one uses the continuous degree of freedom of a quantum system for encoding, processing or detecting information, one e...

متن کامل

Information capacity of the stationary Gaussian channel

The information capacity of the mismatched stationary continuous-time Gaussian channel is determined. The assumptions placed on the signal process are less restrictive than those given in previous treatments. Moreover. Lhe assumptions used may have operational advantages over those used previously. *Department of Statistics. University of North Carolina. Chape] Hill. N.C. 27599-3260 *Department...

متن کامل

Classical information capacity of a quantum channel.

We consider the transmission of classical information over a quantum channel. The channel is deened by an \alphabet" of quantum states, e.g. certain photon polarizations, together with a speciied set of probabilities with which these states must be sent. The Levitin-Kholevo theorem implies that the amount of information transmitted per \letter" cannot be greater than the von Neumann entropy H o...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics A: Mathematical and Theoretical

سال: 2020

ISSN: 1751-8113,1751-8121

DOI: 10.1088/1751-8121/ab7df8