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Simple criteria for noise resistance of two qudit entanglement
Arijit Dutta, Junghee Ryu, Wieslaw Laskowski +1
Too much noise kills entanglement. This is the main problem in its production and transmission. We use a handy approach to indicate noise resistance of entanglement of a bi-partite…
Normalized Stokes operators for polarization correlations of entangled optical fields
Marek Zukowski, Wieslaw Laskowski, Marcin Wiesniak
Stokes parameters are a standard tool in quantum optics. They involve averaged intensities at exits of polarizers. If the overall measured intensity fluctuates, as e.g. for states…
Bell Inequalities for Quantum Optical Fields
Marek Zukowski, Marcin Wiesniak, Wieslaw Laskowski
We show that the "practical" Bell inequalities, which use intensities as the observed variables, commonly used in quantum optics and widely accepted in the community, suffer from a…
The Magical Number Seven: An Unexpected Dimensional Threshold in Quantum Communication Complexity
Armin Tavakoli, Marcin Pawlowski, Marek Zukowski +1
Entanglement-assisted classical communication and transmission of a quantum system are the two quantum resources for information processing. Many information tasks can be performed…
Quantum Clock Synchronization with a Single Qudit
Armin Tavakoli, Adán Cabello, Marek Żukowski +1
Clock synchronization for nonfaulty processes in multiprocess networks is indispensable for a variety of technologies. A reliable system must be able to resynchronize the nonfaulty…
Bell's theorem tells us NOT what quantum mechanics IS, but what quantum mechanics IS NOT
Marek Zukowski
Non-locality, or quantum-non-locality, are buzzwords in the community of quantum foundation and information scientists, which purportedly describe the implications of Bell's theore…