Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Gabris, Aurel"'
The ability of preparing perfect Bell pairs with a practical scheme is of great relevance for quantum communication as well as distributed quantum computing. We propose a scheme which probabilistically, but unambiguously produces the $\left|\Phi_{+}\
Externí odkaz:
http://arxiv.org/abs/2402.16752
Autor:
Nitsche, Thomas, De, Syamsundar, Barkhofen, Sonja, Meyer-Scott, Evan, Tiedau, Johannes, Sperling, Jan, Gábris, Aurél, Jex, Igor, Silberhorn, Christine
Publikováno v:
Phys. Rev. Lett. 125, 213604 (2020)
We devise an approach to characterizing the intricate interplay between classical and quantum interference of two-photon states in a network, which comprises multiple time-bin modes. By controlling the phases of delocalized single photons, we manipul
Externí odkaz:
http://arxiv.org/abs/2005.07219
Autor:
Lorz, Lennart, Meyer-Scott, Evan, Nitsche, Thomas, Potocek, Václav, Gábris, Aurél, Barkhofen, Sonja, Jex, Igor, Silberhorn, Christine
Publikováno v:
Phys. Rev. Research 1, 033036 (2019)
The dimensionality of the internal coin space of discrete-time quantum walks has a strong impact on the complexity and richness of the dynamics of quantum walkers. While two-dimensional coin operators are sufficient to define a certain range of dynam
Externí odkaz:
http://arxiv.org/abs/1809.00591
Autor:
Nitsche, Thomas, Barkhofen, Sonja, Kruse, Regina, Sansoni, Linda, Štefaňák, Martin, Gábris, Aurél, Potoček, Václav, Kiss, Tamás, Jex, Igor, Silberhorn, Christine
Publikováno v:
Science Advances 29 Jun 2018: Vol. 4, no. 6, eaar6444
Measurements on a quantum particle unavoidably affect its state, since the otherwise unitary evolution of the system is interrupted by a non-unitary projection operation. In order to probe measurement-induced effects in the state dynamics using a qua
Externí odkaz:
http://arxiv.org/abs/1803.04712
Autor:
Barkhofen, Sonja, Nitsche, Thomas, Elster, Fabian, Lorz, Lennart, Gabris, Aurel, Jex, Igor, Silberhorn, Christine
Publikováno v:
Phys. Rev. A 96, 033846 (2017)
Quantum walks constitute a versatile platform for simulating transport phenomena on discrete graphs including topological material properties while providing a high control over the relevant parameters at the same time. To experimentally access and d
Externí odkaz:
http://arxiv.org/abs/1606.00299
Autor:
Nitsche, Thomas, Elster, Fabian, Novotný, Jaroslav, Gábris, Aurél, Jex, Igor, Barkhofen, Sonja, Silberhorn, Christine
Publikováno v:
New J. Phys. 18 063017 (2016)
Quantum walks are a well-established model for the study of coherent transport phenomena and provide a universal platform in quantum information theory. Dynamically influencing the walker's evolution gives a high degree of flexibility for studying va
Externí odkaz:
http://arxiv.org/abs/1601.08204
Autor:
Elster, Fabian, Barkhofen, Sonja, Nitsche, Thomas, Novotný, Jaroslav, Gábris, Aurél, Jex, Igor, Silberhorn, Christine
Publikováno v:
Scientific Reports 5 (2015) 13495
Coherent evolution governs the behaviour of all quantum systems, but in nature it is often subjected to influence of a classical environment. For analysing quantum transport phenomena quantum walks emerge as suitable model systems. In particular, qua
Externí odkaz:
http://arxiv.org/abs/1511.01269
Autor:
Kruse, Regina, Katzschmann, Fabian, Christ, Andreas, Schreiber, Andreas, Wilhelm, Sarah, Laiho, Kaisa, Gábris, Aurél, Hamilton, Craig S., Jex, Igor, Silberhorn, Christine
Publikováno v:
New J. Phys. 15 083046 (2013)
High dimensional quantum states are of fundamental interest for quantum information processing. They give access to large Hilbert spaces and, in turn, enable the encoding of quantum information on multiple modes. One method to create such quantum sta
Externí odkaz:
http://arxiv.org/abs/1305.6806
Autor:
Schreiber, Andreas, Gabris, Aurel, Rohde, Peter P., Laiho, Kaisa, Stefanak, Martin, Potocek, Vaclav, Hamilton, Craig, Jex, Igor, Silberhorn, Christine
Publikováno v:
Science 336 55-58 (2012)
Multi-dimensional quantum walks can exhibit highly non-trivial topological structure, providing a powerful tool for simulating quantum information and transport systems. We present a flexible implementation of a 2D optical quantum walk on a lattice,
Externí odkaz:
http://arxiv.org/abs/1204.3555
Publikováno v:
New Journal of Physics, Vol 13, 013015, 2011
We examine the physical implementation of a discrete time quantum walk with a four-dimensional coin. Our quantum walker is a photon moving repeatedly through a time delay loop, with time being our position space. The quantum coin is implemented using
Externí odkaz:
http://arxiv.org/abs/1103.0126