Quantum Receiver beyond the Standard Quantum Limit of Coherent Optical Communication

نویسندگان
چکیده

برای دانلود رایگان 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

Optical Vector Receiver Operating Near the Quantum Limit

An optical receiver concept for binary signals with performance approaching the quantum limit at low average-signal energies is developed and analyzed. A conditionally nulling receiver that reaches the quantum limit in the absence of background photons has been devised by Dolinar. However, this receiver requires ideal optical combining and complicated real-time shaping of the local field; hence...

متن کامل

Differential atom interferometry beyond the standard quantum limit

K. Eckert, P. Hyllus, D. Bruß, U. V. Poulsen, M. Lewenstein,* C. Jentsch, T. Müller, E. M. Rasel, and W. Ertmer Institut für Theoretische Physik, Universität Hannover, D-30167 Hannover, Germany The Blackett Lab – QOLS, Imperial College London, London SW7 2BW, United Kingdom Institut für Theoretische Physik III, Universität Düsseldorf, D-40225 Düsseldorf, Germany Dipartimento di Fisica, Universi...

متن کامل

Quantum memory receiver for superadditive communication using binary coherent states

We propose a simple architecture based on multimode quantum memories for collective readout of classical information keyed using a pair coherent states, exemplified by the well-known binary phase shift keying format. Such a configuration enables demonstration of the superadditivity effect in classical communication over quantum channels, where the transmission rate becomes enhanced through join...

متن کامل

Quantum imaging beyond the diffraction limit by optical centroid measurements.

I propose a quantum imaging method that can beat the Rayleigh-Abbe diffraction limit and achieve de Broglie resolution without requiring a multiphoton absorber or coincidence detection. Using the same nonclassical states of light as those for quantum lithography, the proposed method requires only optical intensity measurements, followed by image postprocessing, to produce the same complex quant...

متن کامل

Beyond Standard Quantum Chromodynamics

Despite the many empirical successes of QCD, there are a number of intriguing experimental anomalies that have been observed in heavy avor hadroproduc-tion, in measurements of azimuthal correlations in deep inelastic processes, and in measurements of spin correlations in hadronic reactions. Such phenomena point to color coherence and multiparton correlations in the hadron wavefunc-tions and phy...

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: Physical Review Letters

سال: 2011

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.106.250503