Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Bavaresco, Jessica"'
Autor:
Kristjánsson, Hlér, Odake, Tatsuki, Yoshida, Satoshi, Taranto, Philip, Bavaresco, Jessica, Quintino, Marco Túlio, Murao, Mio
Quantum theory is consistent with a computational model permitting black-box operations to be applied in an indefinite causal order, going beyond the standard circuit model of computation. The quantum switch -- the simplest such example -- has been s
Externí odkaz:
http://arxiv.org/abs/2409.18420
Autor:
Bavaresco, Jessica, Yoshida, Satoshi, Odake, Tatsuki, Kristjánsson, Hlér, Taranto, Philip, Murao, Mio, Quintino, Marco Túlio
Higher-order transformations that act on a certain number of input quantum channels in an indefinite causal order - such as the quantum switch - cannot be described by standard quantum circuits that use the same number of calls of the input quantum c
Externí odkaz:
http://arxiv.org/abs/2409.18202
Publikováno v:
Phys. Rev. Research 6, 023305 (2024)
Using quantum systems as sensors or probes has been shown to greatly improve the precision of parameter estimation by exploiting unique quantum features such as entanglement. A major task in quantum sensing is to design the optimal protocol, i.e., th
Externí odkaz:
http://arxiv.org/abs/2311.01513
Autor:
Cao, Huan, Bavaresco, Jessica, Wang, Ning-Ning, Rozema, Lee A., Zhang, Chao, Huang, Yun-Feng, Liu, Bi-Heng, Li, Chuan-Feng, Guo, Guang-Can, Walther, Philip
Publikováno v:
Optica 10, 561 (2023)
We report an experimental certification of indefinite causal order that relies only on the characterization of the operations of a single party. We do so in the semi-device-independent scenario with the fewest possible assumptions of characterization
Externí odkaz:
http://arxiv.org/abs/2202.05346
Publikováno v:
Quantum 6, 788 (2022)
The capacity of distant parties to send signals to one another is a fundamental requirement in many information-processing tasks. Such ability is determined by the causal structure connecting the parties, and more generally, by the intermediate proce
Externí odkaz:
http://arxiv.org/abs/2110.03233
Autor:
Yamasaki, Hayata, Morelli, Simon, Miethlinger, Markus, Bavaresco, Jessica, Friis, Nicolai, Huber, Marcus
Publikováno v:
Quantum 6, 695 (2022)
Entanglement shared among multiple parties presents complex challenges for the characterisation of different types of entanglement. One of the most fundamental insights is the fact that some mixed states can feature entanglement across every possible
Externí odkaz:
http://arxiv.org/abs/2106.01372
Publikováno v:
J. Math. Phys. 63, 042203 (2022)
For minimum-error channel discrimination tasks that involve only unitary channels, we show that sequential strategies may outperform the parallel ones. Additionally, we show that general strategies that involve indefinite causal order are also advant
Externí odkaz:
http://arxiv.org/abs/2105.13369
Publikováno v:
Phys. Rev. Lett. 127, 200504 (2021)
We present an instance of a task of minimum-error discrimination of two qubit-qubit quantum channels for which a sequential strategy outperforms any parallel strategy. We then establish two new classes of strategies for channel discrimination that in
Externí odkaz:
http://arxiv.org/abs/2011.08300
Autor:
Chen, Yuanyuan, Ecker, Sebastian, Bavaresco, Jessica, Scheidl, Thomas, Chen, Lixiang, Steinlechner, Fabian, Huber, Marcus, Ursin, Rupert
Publikováno v:
Phys. Rev. A 101, 032302 (2020)
Entanglement and quantum interference are key ingredients in a variety of quantum information processing tasks. Harnessing the generation and characterization of entanglement in high-dimensional state spaces is a necessary prerequisite towards practi
Externí odkaz:
http://arxiv.org/abs/1910.07684
Publikováno v:
Quantum 3, 176 (2019)
When transforming pairs of independent quantum operations according to the fundamental rules of quantum theory, an intriguing phenomenon emerges: some such higher-order operations may act on the input operations in an indefinite causal order. Recentl
Externí odkaz:
http://arxiv.org/abs/1903.10526