504 citations · 7.2k across the 114 of their papers we have counts for
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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…
Fiber-optic realization of anisotropic depolarizing quantum channels
Michal Karpinski, Czeslaw Radzewicz, Konrad Banaszek
We employed an electrically-driven polarization controller to implement anisotropic depolarizing quantum channels for the polarization state of single photons. The channels were ch…
Effects of imperfect noise correlations on decoherence-free subsystems: SU(2) diffusion model
Rafal Demkowicz-Dobrzanski, Piotr Kolenderski, Konrad Banaszek
We present a model of an N-qubit channel where consecutive qubits experience correlated random rotations. Our model is an extension to the standard decoherence-free subsystems appr…
A measure of the non-Gaussian character of a quantum state
Marco G. Genoni, Matteo G. A. Paris, Konrad Banaszek
We address the issue of quantifying the non-Gaussian character of a bosonic quantum state and introduce a non-Gaussianity measure based on the Hilbert-Schmidt distance between the…
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…