Fast Polarization for Processes With Memory
نویسندگان
چکیده
منابع مشابه
Fast Polarization for Processes with Memory
Fast polarization is crucial for the performance guarantees of polar codes. In the memoryless setting, the rate of polarization is known to be exponential in the square root of the block length. A complete characterization of the rate of polarization for models with memory has been missing. We consider polar codes for processes with memory that are characterized by an underlying ergodic finite ...
متن کاملFast Polarization Switch for Polarization-based Quantum Communication
We present a complete optoelectronic unit for polarization visualization, switching and control. The system is based on a Field Programmable Gate Array (FPGA) unit and comprises: an acquisition unit containing an analog polarimeter and digital-to-analog converters; an FPGA capable of implementing an optimal algorithm for three-stage arbitrary polarization tracking; and an electronic driver with...
متن کاملProbabilistic Theory of Transport Processes with Polarization
We derive a probabilistic representation for solutions of matrix-valued transport equations that account for polarization e ects. Such equations arise in radiative transport for the Stokes parameters that model the propagation of light through turbulent atmospheres. They also arise in radiative transport for seismic wave propagation in the earth's crust. The probabilistic representation involve...
متن کاملStationary Distributions for Jump Processes with Memory
We analyze a jump processes Z with a jump measure determined by a “memory” process S. The state space of (Z, S) is the Cartesian product of the unit circle and the real line. We prove that the stationary distribution of (Z, S) is the product of the uniform probability measure and a Gaussian distribution.
متن کاملAtomic Quantum Memory for Photon Polarization
Using an ensemble of ultracold Cesium atoms in an optical cavity we demonstrate the efficient storage and retrieval of quantum information in the form of single photons. We use a photon that has scattered into the cavity mode to herald a successful creation of a collective excitation of Cesium atoms and hence our ability to retrieve a photon from the stored excitation at a later time. Post-sele...
متن کاملذخیره 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: IEEE Transactions on Information Theory
سال: 2019
ISSN: 0018-9448,1557-9654
DOI: 10.1109/tit.2018.2878575