Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Paunković, Nikola"'
Autor:
Paunkovic, Nikola, Vojinovic, Marko
We discuss the issues with tentative generalisations of the process matrix formalism from finite-dimensional mechanical systems all the way to quantum field theory. We present a detailed overview of possible open problems that arise when one attempts
Externí odkaz:
http://arxiv.org/abs/2310.04597
Publikováno v:
Quantum 8, 1230 (2024)
This work presents a study of Kolmogorov complexity for general quantum states from the perspective of deterministic-control quantum Turing Machines (dcq-TM). We extend the dcq-TM model to incorporate mixed state inputs and outputs, and define dcq-co
Externí odkaz:
http://arxiv.org/abs/2305.14252
Autor:
Paunkovic, Nikola, Vojinovic, Marko
Publikováno v:
Universe 8, 598 (2022)
We give a general overview of various flavors of the equivalence principle in classical and quantum physics, with special emphasis on the so-called weak equivalence principle, and contrast its validity in mechanics versus field theory. We also discus
Externí odkaz:
http://arxiv.org/abs/2210.00133
Autor:
Paunkovic, Nikola, Vojinovic, Marko
We argue that there exists an operational way to establish the objective reality of the notions of space and time. Specifically, we propose a theory-independent protocol for a gedanken-experiment, whose outcome is a signal establishing the observabil
Externí odkaz:
http://arxiv.org/abs/2209.04783
Publikováno v:
Phys. Rev. B 106, 155101 (2022)
We analyze the thermodynamical limit of the quantum metric along critical submanifolds of theory space. Building upon various results previously known in the literature, we relate its singular behavior to normal directions, which are naturally associ
Externí odkaz:
http://arxiv.org/abs/2201.01329
Publikováno v:
Quantum 7, 986 (2023)
This work overviews the single-particle two-way communication protocol recently introduced by del Santo and Daki\'c (dSD), and analyses it using the process matrix formalism. We give a detailed account of the importance and the operational meaning of
Externí odkaz:
http://arxiv.org/abs/2010.16042
Publikováno v:
Phys. Rev. B 103, 085127 (2021)
We provide a natural generalization of a Riemannian structure, i.e., a metric, recently introduced by Sj\"{o}qvist for the space of non degenerate density matrices, to the degenerate case, i.e., the case in which the eigenspaces have dimension greate
Externí odkaz:
http://arxiv.org/abs/2010.06629
Autor:
Lemus, Mariano, Ramos, Mariana F., Yadav, Preeti, Silva, Nuno A., Muga, Nelson J., Souto, Andre, Paunkovic, Nikola, Mateus, Paulo, Pinto, Armando N.
Publikováno v:
Appl. Sci. 2020, 10(12), 4080
The oblivious transfer primitive is sufficient to implement secure multiparty computation. However, secure multiparty computation based only on classical cryptography is severely limited by the security and efficiency of the oblivious transfer implem
Externí odkaz:
http://arxiv.org/abs/1909.11701
Autor:
Massa, Francesco, Yadav, Preeti, Moqanaki, Amir, Krawec, Walter O., Mateus, Paulo, Paunković, Nikola, Souto, André, Walther, Philip
Publikováno v:
Quantum 6, 819 (2022)
Quantum key distribution, which allows two distant parties to share an unconditionally secure cryptographic key, promises to play an important role in the future of communication. For this reason such technique has attracted many theoretical and expe
Externí odkaz:
http://arxiv.org/abs/1908.01780