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Autor:
Tran, Minh Cong, Taylor, Jacob M.
Blindness is a desirable feature in delegated computation. In the classical setting, blind computations protect the data or even the program run by a server. In the quantum regime, blind computing may also enable testing computational or other quantu
Externí odkaz:
http://arxiv.org/abs/1801.04006
Autor:
Tran, Minh Cong, Ramanathan, Ravishankar, McKague, Matthew, Kaszlikowski, Dagomir, Paterek, Tomasz
Publikováno v:
Phys. Rev. A 98, 052325 (2018)
Characterizing trade-offs between simultaneous violations of multiple Bell inequalities in a large network of qubits is computationally demanding. We propose a graph-theoretic approach to efficiently produce Bell monogamy relations in arbitrary arran
Externí odkaz:
http://arxiv.org/abs/1801.03071
Large quantum simulators, with sufficiently many qubits to be impossible to simulate classically, become hard to experimentally validate. We propose two tests of a quantum simulator with Heisenberg interaction in a linear chain of spins. In the first
Externí odkaz:
http://arxiv.org/abs/1712.05282
Publikováno v:
Phys. Rev. A 96, 052334 (2017)
Lieb and Robinson provided bounds on how fast bipartite connected correlations can arise in systems with only short-range interactions. We generalize Lieb-Robinson bounds on bipartite connected correlators to multipartite connected correlators. The b
Externí odkaz:
http://arxiv.org/abs/1705.04355
Autor:
Tran, Minh Cong, Zuppardo, Margherita, de Rosier, Anna, Knips, Lukas, Laskowski, Wiesław, Paterek, Tomasz, Weinfurter, Harald
Publikováno v:
Phys. Rev. A 95, 062331 (2017)
A genuinely $N$-partite entangled state may display vanishing $N$-partite correlations measured for arbitrary local observables. In such states the genuine entanglement is noticeable solely in correlations between subsets of particles. A straightforw
Externí odkaz:
http://arxiv.org/abs/1704.03385
Publikováno v:
Phys. Rev. A 94, 042302 (2016)
We recently showed that multipartite correlations between outcomes of random observables detect quantum entanglement in all pure and some mixed states. In this followup article we further develop this approach, derive a maximal amount of such correla
Externí odkaz:
http://arxiv.org/abs/1605.08529
Publikováno v:
Phys. Rev. A 92, 050301 (2015)
We show that the expectation value of squared correlations measured along random local directions is an identifier of quantum entanglement in pure states which can be directly experimentally assessed if two copies of the state were available. Entangl
Externí odkaz:
http://arxiv.org/abs/1411.4755
Autor:
Schwemmer, Christian, Knips, Lukas, Tran, Minh Cong, de Rosier, Anna, Laskowski, Wieslaw, Paterek, Tomasz, Weinfurter, Harald
Publikováno v:
Phys. Rev. Lett. 114, 180501 (2015)
Non-classical correlations between measurement results make entanglement the essence of quantum physics and the main resource for quantum information applications. Surprisingly, there are $n$-particle states which do not exhibit $n$-partite correlati
Externí odkaz:
http://arxiv.org/abs/1410.2367
Publikováno v:
In Microchemical Journal June 2020 155