Zobrazeno 1 - 10
of 13
pro vyhledávání: '"E V Kovlakov"'
Publikováno v:
New Journal of Physics, Vol 15, Iss 7, p 073016 (2013)
We experimentally study the properties of coherent mode decomposition for the intensity correlation function of quasi-thermal light. We use the technique of spatial mode selection developed for studying the transverse entanglement of photon pairs, an
Externí odkaz:
https://doaj.org/article/49b944f227374757ac538d863f9e322a
Autor:
E. V. Kovlakov, I. B. Bobrov, D. Shchepanovich, D. V. Kupriyanov, Stanislav Straupe, Sergei P. Kulik, L. V. Gerasimov, R. R. Yusupov
Publikováno v:
Physical Review A. 103
We present a theoretical investigation of coherent dynamics of a spin qubit encoded in hyperfine sublevels of an alkali-metal atom in a far off-resonant optical dipole trap. The qubit is prepared in the "clock transition" utilizing the Zeeman states
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c46c5906482cceea7c7a723dc4ea82f2
https://doi.org/10.1103/physreva.103.062426
https://doi.org/10.1103/physreva.103.062426
Autor:
G. I. Struchalin, Yong Siah Teo, Seongwook Shin, Hyunseok Jeong, Yoon-Ho Kim, E. V. Kovlakov, Yosep Kim, Gerd Leuchs, Stanislav Straupe, Luis L. Sánchez-Soto, Sergei P. Kulik
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
New J. Phys.
instname
New J. Phys.
We train convolutional neural networks to predict whether or not a set of measurements is informationally complete to uniquely reconstruct any given quantum state with no prior information. In addition, we perform fidelity benchmarking based on this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8141835d62d20a58457a9953e0546a1b
Full quantum tomography of high-dimensional quantum systems is experimentally infeasible due to the exponential scaling of the number of required measurements on the number of qubits in the system. However, several ideas were proposed recently for pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::980cdb641684854cddaa889a9b65ceec
http://arxiv.org/abs/2008.05234
http://arxiv.org/abs/2008.05234
Autor:
Hyunseok Jeong, G. I. Struchalin, D. Ahn, Yong Siah Teo, Stanislav Straupe, E. V. Kovlakov, Sergei P. Kulik, Luis L. Sánchez-Soto, Gerd Leuchs
Publikováno v:
Physical Review A
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
E-Prints Complutense. Archivo Institucional de la UCM
instname
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
We present a compressive quantum process tomography scheme that fully characterizes any rank-deficient completely-positive process with no a priori information about the process apart from the dimension of the system on which the process acts. It use
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ff6924d60eb8b4f345152eacca61785
https://hdl.handle.net/21.11116/0000-0008-12C0-A21.11116/0000-0008-12BE-E
https://hdl.handle.net/21.11116/0000-0008-12C0-A21.11116/0000-0008-12BE-E
Autor:
Federico Bianchi, Jacob Biamonte, Adriano Macarone Palmieri, Stanislav Straupe, Dmitry Yudin, Sergei P. Kulik, E. V. Kovlakov
Publikováno v:
npj Quantum Information, Vol 6, Iss 1, Pp 1-5 (2020)
Quantum tomography is currently ubiquitous for testing any implementation of a quantum information processing device. Various sophisticated procedures for state and process reconstruction from measured data are well developed and benefit from precise
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b8c4771babea1112c8b4c4107658261
https://doi.org/10.1038/s41534-020-0248-6
https://doi.org/10.1038/s41534-020-0248-6
Autor:
E. V. Kovlakov, Maria V. Chekhova, Sergei P. Kulik, F. Bönsel, Cameron Okoth, Andrea Cavanna, Stanislav Straupe
Publikováno v:
Physical Review A. 101
The most common source of entangled photons is spontaneous parametric down-conversion (SPDC). The degree of energy and momentum entanglement in SPDC is determined by the nonlinear interaction volume. By reducing the length of a highly nonlinear mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ff11cc29885a416c6e3f64cccf16ac1
https://doi.org/10.1103/physreva.101.011801
https://doi.org/10.1103/physreva.101.011801
Publikováno v:
Physical Review A. 98
Adaptive measurements have recently been shown to significantly improve the performance of quantum state and process tomography. However, the existing methods either cannot be straightforwardly applied to high-dimensional systems or are prohibitively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fefe65622ec26dcec64777980637447
https://doi.org/10.1103/physreva.98.032330
https://doi.org/10.1103/physreva.98.032330
High-dimensional entanglement is a valuable resource for quantum communication, and photon pairs entangled in orbital angular momentum are commonly used for encoding high-dimensional quantum states. However, methods for preparation of maximally entan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e9768fe02977a8ed557103f8fd3e1f8
Publikováno v:
Optics Letters. 44:3286
The counterintuitive nature of quantum physics leads to a number of paradoxes. One of them is a "quantum vampire" effect [Fedorov et al., Optica2, 112 (2015)OPTIC82334-253610.1364/OPTICA.2.000112], which means that the photon annihilation in a part o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ea72fc05e182b915387b0a31cf1ebaf
https://doi.org/10.1364/ol.44.003286
https://doi.org/10.1364/ol.44.003286