Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Sonja Barkhofen"'
Autor:
Sonja Barkhofen, Syamsundar De, Jan Sperling, Christine Silberhorn, Alexander Altland, Dmitry Bagrets, Kun Woo Kim, Tobias Micklitz
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p 033194 (2024)
We report on a photonic simulator of the critical state forming at the quantum phase transition between topologically distinct Anderson insulator phases. We observe a time-staggered profile in the circular photon polarization, which originates from t
Externí odkaz:
https://doaj.org/article/2d6b74c0bbb74e6a82fe4c64ca643b1b
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p L012043 (2024)
Decomposing complex unitary evolution into a series of constituent components is a cornerstone of practical quantum information processing. While the decomposition of an n×n unitary into a product of 2×2 subunitaries (which can for example be reali
Externí odkaz:
https://doaj.org/article/85516da8b8ec47b5b3ead0ac4ed699b0
Autor:
Dmitry Bagrets, Kun Woo Kim, Sonja Barkhofen, Syamsundar De, Jan Sperling, Christine Silberhorn, Alexander Altland, Tobias Micklitz
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023183 (2021)
We consider one-dimensional quantum walks in optical linear networks with synthetically introduced disorder and tunable system parameters allowing for the engineered realization of distinct topological phases. The option to directly monitor the walke
Externí odkaz:
https://doaj.org/article/798bfefa1456490897a5907cd111aa1b
Autor:
Andrea Geraldi, Syamsundar De, Alessandro Laneve, Sonja Barkhofen, Jan Sperling, Paolo Mataloni, Christine Silberhorn
Publikováno v:
Physical Review Research, Vol 3, Iss 2, p 023052 (2021)
Transport phenomena play a crucial role in modern physics and applied sciences. Examples include the dissipation of energy across a large system, the distribution of quantum information in optical networks, and the timely modeling of spreading diseas
Externí odkaz:
https://doaj.org/article/31bd9f7e82d141648719f0616addd33f
Autor:
Lennart Lorz, Evan Meyer-Scott, Thomas Nitsche, Václav Potoček, Aurél Gábris, Sonja Barkhofen, Igor Jex, Christine Silberhorn
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 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:
https://doaj.org/article/68d7b5e29f7644bb806599ccf008a040
Autor:
Thomas Nitsche, Tobias Geib, Christoph Stahl, Lennart Lorz, Christopher Cedzich, Sonja Barkhofen, Reinhard F Werner, Christine Silberhorn
Publikováno v:
New Journal of Physics, Vol 21, Iss 4, p 043031 (2019)
We study topological phenomena of quantum walks by implementing a novel protocol that extends the range of accessible properties to the eigenvalues of the walk operator. To this end, we experimentally realise for the first time a split-step quantum w
Externí odkaz:
https://doaj.org/article/dc498951e4ae42299e9a51777829e1a8
Publikováno v:
New Journal of Physics, Vol 18, Iss 7, p 073008 (2016)
We introduce the driven discrete time quantum walk (QW), where walkers are added during the walk instead of only at the beginning. This leads to interference in walker number and very different dynamics when compared to the original QW. These dynamic
Externí odkaz:
https://doaj.org/article/62e4afefa00743cf97395293a8cc3820
Autor:
Thomas Nitsche, Fabian Elster, Jaroslav Novotný, Aurél Gábris, Igor Jex, Sonja Barkhofen, Christine Silberhorn
Publikováno v:
New Journal of Physics, Vol 18, Iss 6, p 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
Externí odkaz:
https://doaj.org/article/8c39ac2144314e3785d9eb1e2cc71c2d
In real photonic quantum systems losses are an unavoidable factor limiting the scalability to many modes and particles, restraining their application in fields as quantum information and communication. For this reason, a considerable amount of engine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb0bf3c0013c3668591f167cee4b2df1
http://arxiv.org/abs/2301.12764
http://arxiv.org/abs/2301.12764
Autor:
Evan Meyer-Scott, Nidhin Prasannan, Ish Dhand, Christof Eigner, Viktor Quiring, Sonja Barkhofen, Benjamin Brecht, Martin B. Plenio, Christine Silberhorn
Publikováno v:
Physical Review Letters. 129
Multi-photon entangled states of light are key to advancing quantum communication, computation, and metrology. Current methods for building such states are based on stitching together photons from probabilistic sources. The probability of $N$ such so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64362674b1b35d2bbc398d5e3695328c
https://doi.org/10.1103/physrevlett.129.150501
https://doi.org/10.1103/physrevlett.129.150501