Zobrazeno 1 - 10
of 376
pro vyhledávání: '"Sekatski, P."'
The information plane (Tishby et al. arXiv:physics/0004057, Shwartz-Ziv et al. arXiv:1703.00810) has been proposed as an analytical tool for studying the learning dynamics of neural networks. It provides quantitative insight on how the model approach
Externí odkaz:
http://arxiv.org/abs/2411.02313
We discuss quantum network Bell nonlocality in a setting where the network structure is not fully known. More concretely, an honest user may trust their local network topology, but not the structure of the rest of the network, involving distant (and
Externí odkaz:
http://arxiv.org/abs/2406.09510
Photon loss represents a major challenge for the implementation of quantum communication protocols with untrusted devices, e.g. in the device-independent (DI) or semi-DI approaches. Determining critical loss thresholds is usually done in case-by-case
Externí odkaz:
http://arxiv.org/abs/2403.14785
We consider the estimation of an unknown parameter $\theta$ through a quantum probe at thermal equilibrium. The probe is assumed to be in a Gibbs state according to its Hamiltonian $H_\theta$, which is divided in a parameter-encoding term $H^{\rm P}_
Externí odkaz:
http://arxiv.org/abs/2402.06582
Publikováno v:
Physical Review Research 6, 033101 (2024)
We consider quantum computer architectures where interactions are mediated between hot qubits that are not in their mechanical ground state. Such situations occur, e.g., when not cooling ideally, or when moving ions or atoms around. We introduce quan
Externí odkaz:
http://arxiv.org/abs/2311.06588
Quantum networks allow for novel forms of quantum nonlocality. By exploiting the combination of entangled states and entangled measurements, strong nonlocal correlations can be generated across the entire network. So far, all proofs of this effect ar
Externí odkaz:
http://arxiv.org/abs/2311.02182
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
Publikováno v:
Izvestiâ Vysših Učebnyh Zavedenij i Ènergetičeskih ob Edinennij SNG. Ènergetika, Vol 67, Iss 5, Pp 411-424 (2024)
One of the directions of development of the electric power industry is decentralization, aimed at improving the reliability of energy supply, reducing losses during transmission of electric energy and ensuring energy independence of consumers. It is
Externí odkaz:
https://doaj.org/article/6d029fad950643bda5771cb20d977333
Publikováno v:
Quantum 8, 1333 (2024)
Bell inequalities play a key role in certifying quantum properties for device-independent quantum information protocols. It is still a major challenge, however, to devise Bell inequalities tailored for an arbitrary given quantum state. Existing appro
Externí odkaz:
http://arxiv.org/abs/2308.08601
Publikováno v:
2024 Quantum Sci. Technol. 9 035005
We consider the task of multiple parameter estimation in the presence of strong correlated noise with a network of distributed sensors. We study how to find and improve noise-insensitive strategies. We show that sequentially probing GHZ states is opt
Externí odkaz:
http://arxiv.org/abs/2306.01077