Zobrazeno 1 - 10
of 96
pro vyhledávání: '"Paul Skrzypczyk"'
Publikováno v:
Quantum, Vol 8, p 1470 (2024)
We consider models of quantum computation that involve operations performed on some fixed resourceful quantum state. Examples that fit this paradigm include magic state injection and measurement-based approaches. We introduce a framework that incorpo
Externí odkaz:
https://doaj.org/article/413981b2c42e435f87d6f55dfc0ea228
Autor:
Andrés F. Ducuara, Paul Skrzypczyk
Publikováno v:
PRX Quantum, Vol 3, Iss 2, p 020366 (2022)
We introduce operational quantum tasks based on betting with risk aversion—or quantum betting tasks for short—inspired by standard quantum state discrimination and classical horse betting with risk aversion and side information. In particular, we
Externí odkaz:
https://doaj.org/article/dd49ae738b854267aae668049cf4366c
Publikováno v:
PRX Quantum, Vol 2, Iss 2, p 020301 (2021)
Although entanglement is necessary for observing nonlocality in a Bell experiment, there are entangled states that can never be used to demonstrate nonlocal correlations. In a seminal paper Buscemi [Phys. Rev. Lett. 108, 200401 (2012)] extended the s
Externí odkaz:
https://doaj.org/article/3f19e19aad874b05b94c978ca3859b13
Autor:
Patryk Lipka-Bartosik, Paul Skrzypczyk
Publikováno v:
Physical Review X, Vol 11, Iss 1, p 011061 (2021)
Quantum catalysis is a fascinating concept that demonstrates how certain transformations can only become possible when given access to a specific resource that has to be returned unaffected. It was first discovered in the context of entanglement theo
Externí odkaz:
https://doaj.org/article/843c0e62da774817b640fa95df484d55
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-9 (2016)
The second law of thermodynamics constrains how much of a conserved quantity, such as energy, can be extracted from a system in the form of work. Here, the authors generalize this law to quantum systems whose conserved quantities need not commute, sh
Externí odkaz:
https://doaj.org/article/0167d7be65f6485e9d684f733bc2490e
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033374 (2020)
The prevalent modus operandi within the framework of quantum resource theories has been to characterize and harness the resources within single objects, in what we can call single-object quantum resource theories. One can wonder, however, whether the
Externí odkaz:
https://doaj.org/article/305cd919e7c740ed8ee7846acf348793
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023292 (2020)
Measurement incompatibility is one of the basic aspects of quantum theory. Here we study the structure of the set of compatible, i.e., jointly measurable, measurements. We are interested in whether or not there exist compatible measurements whose par
Externí odkaz:
https://doaj.org/article/e6dfa5285e4c4781b051222de66f780b
Autor:
Patryk Lipka-Bartosik, Paul Skrzypczyk
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023029 (2020)
The standard benchmark for teleportation is the average fidelity of teleportation and according to this benchmark not all states are useful for teleportation. It was recently shown, however, that all entangled states lead to nonclassical teleportatio
Externí odkaz:
https://doaj.org/article/37bd6aaf7d5b47febb28f50382dac8c0
Autor:
Jan Kołodyński, Alejandro Máttar, Paul Skrzypczyk, Erik Woodhead, Daniel Cavalcanti, Konrad Banaszek, Antonio Acín
Publikováno v:
Quantum, Vol 4, p 260 (2020)
$\textit{Device-independent quantum key distribution}$ protocols allow two honest users to establish a secret key with minimal levels of trust on the provider, as security is proven without any assumption on the inner working of the devices used for
Externí odkaz:
https://doaj.org/article/c5d7de31f12545ed99848689677ac8dd
Autor:
Yelena Guryanova, Ralph Silva, Anthony J. Short, Paul Skrzypczyk, Nicolas Brunner, Sandu Popescu
Publikováno v:
Quantum, Vol 3, p 211 (2019)
We present an operational and model-independent framework to investigate the concept of no-backwards-in-time signalling. We define no-backwards-in-time signalling conditions, closely related to the spatial no-signalling conditions. These allow for th
Externí odkaz:
https://doaj.org/article/ba86de6903794f39bf544567c164a6bc