Zobrazeno 1 - 10
of 420
pro vyhledávání: '"Syamsundar, A."'
Autor:
Barkhofen, Sonja, De, Syamsundar, Sperling, Jan, Silberhorn, Christine, Altland, Alexander, Bagrets, Dmitry, Kim, Kun Woo, Micklitz, Tobias
We report on the observation of quantum criticality forming at the transition point between topological Anderson insulator phases in a one-dimensional photonic quantum walk with spin. The walker's probability distribution reveals a time-staggered pro
Externí odkaz:
http://arxiv.org/abs/2301.05428
Autor:
De, Syamsundar, Ansari, Vahid, Sperling, Jan, Barkhofen, Sonja, Brecht, Benjamin, Silberhorn, Christine
The ability to apply user-chosen large-scale unitary operations with high fidelity to a quantum state is key to realizing future photonic quantum technologies. Here, we realize the implementation of programmable unitary operations on up to 64 frequen
Externí odkaz:
http://arxiv.org/abs/2206.06059
Publikováno v:
In Minerals Engineering October 2024 217
Autor:
Held, Philip, Engelkemeier, Melanie, De, Syamsundar, Barkhofen, Sonja, Sperling, Jan, Silberhorn, Christine
Publikováno v:
Phys. Rev. A 105, 042210 (2022)
Quantum walks function as essential means to implement quantum simulators, allowing one to study complex and often directly inaccessible quantum processes in controllable systems. In this contribution, the notion of a driven Gaussian quantum walk is
Externí odkaz:
http://arxiv.org/abs/2112.08981
Autor:
De, Syamsundar, Gil-Lopez, Jano, Brecht, Benjamin, Silberhorn, Christine, Sanchez-Soto, Luis L., Hradil, Z., Rehacek, J.
Publikováno v:
Phys. Rev. Research 3, 033082 (2021)
Measuring small separations between two optical sources, either in space or in time, constitute an important metrological challenge as standard intensity-only measurements fail for vanishing separations. Contrarily, it has been established that appro
Externí odkaz:
http://arxiv.org/abs/2103.10833
Autor:
Prasannan, Nidhin, De, Syamsundar, Barkhofen, Sonja, Brecht, Benjamin, Silberhorn, Christine, Sperling, Jan
Publikováno v:
Phys. Rev. A 103, 040402 (2021)
We characterize entanglement subject to its definition over real and complex, composite quantum systems. In particular, a method is established to assess quantum correlations with respect to a selected number system, illuminating the deeply rooted, y
Externí odkaz:
http://arxiv.org/abs/2102.01450
Autor:
Bagrets, Dmitry, Kim, Kun Woo, Barkhofen, Sonja, De, Syamsundar, Sperling, Jan, Silberhorn, Christine, Altland, Alexander, Micklitz, Tobias
Publikováno v:
Phys. Rev. Research 3, 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:
http://arxiv.org/abs/2102.01176
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
Autor:
Geraldi, Andrea, De, Syamsundar, Laneve, Alessandro, Barkhofen, Sonja, Sperling, Jan, Mataloni, Paolo, Silberhorn, Christine
Publikováno v:
Phys. Rev. Research 3, 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:
http://arxiv.org/abs/2007.12526
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