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Complete characterization of weak, ultrashort near-UV pulses by spectral interferometry
Marcin Kacprowicz, Wojciech Wasilewski, Konrad Banaszek
We present a method for a complete characterization of a femtosecond ultraviolet pulse when a fundamental near-infrared beam is also available. Our approach relies on generation of…
Spectral density matrix of a single photon measured
Wojciech Wasilewski, Piotr Kolenderski, Robert Frankowski
We propose and demonstrate a method for measuring the spectral density matrix of a single photon pulse. The method is based on registering Hong-Ou-Mandel interference between photo…
Linear-optics manipulations of photon-loss codes
Konrad Banaszek, Wojciech Wasilewski
We discuss codes for protecting logical qubits carried by optical fields from the effects of amplitude damping, i.e. linear photon loss. We demonstrate that the correctability cond…
Protecting an optical qubit against photon loss
Wojciech Wasilewski, Konrad Banaszek
We consider quantum error-correction codes for multimode bosonic systems, such as optical fields, that are affected by amplitude damping. Such a process is a generalization of an e…