Letteratura scientifica selezionata sul tema "Quantum coherent communications"
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Articoli di riviste sul tema "Quantum coherent communications":
Djordjevic, Ivan B. "LDPC-Coded Optical Coherent State Quantum Communications". IEEE Photonics Technology Letters 19, n. 24 (dicembre 2007): 2006–8. http://dx.doi.org/10.1109/lpt.2007.909688.
Sidhu, Jasminder S., Michael S. Bullock, Saikat Guha e Cosmo Lupo. "Linear optics and photodetection achieve near-optimal unambiguous coherent state discrimination". Quantum 7 (31 maggio 2023): 1025. http://dx.doi.org/10.22331/q-2023-05-31-1025.
Эскандери, М. М., Д. Б. Хорошко e С. Я. Килин. "Безошибочное различение когерентных состояний двухмодового оптического поля". Журнал технической физики 128, n. 8 (2020): 1171. http://dx.doi.org/10.21883/os.2020.08.49716.83-20.
PIRANDOLA, STEFANO. "A QUANTUM TELEPORTATION GAME". International Journal of Quantum Information 03, n. 01 (marzo 2005): 239–43. http://dx.doi.org/10.1142/s0219749905000815.
Meddour, H., Sh Askar, S. Dehraj, F. Al-dolaimy, B. S. Abdullaeva, A. Alsaalamy, M. N. Fenjan, A. Alawadi, S. H. Kareem e D. Thabit. "Efficient two-dimensional Fraunhofer diffraction pattern via electron spin coherence". Laser Physics 33, n. 11 (6 ottobre 2023): 116003. http://dx.doi.org/10.1088/1555-6611/acfd9a.
Becerra, F. E., J. Fan e A. Migdall. "Photon number resolution enables quantum receiver for realistic coherent optical communications". Nature Photonics 9, n. 1 (17 novembre 2014): 48–53. http://dx.doi.org/10.1038/nphoton.2014.280.
El-Nahal, Fady. "Coherent 16 Quadrature Amplitude Modulation (16QAM) Optical Communication Systems". Photonics Letters of Poland 10, n. 2 (30 giugno 2018): 57. http://dx.doi.org/10.4302/plp.v10i2.809.
AWSCHALOM, DAVID D. "CONTROLLING SPIN COHERENCE WITH SEMICONDUCTOR NANOSTRUCTURES". International Journal of Modern Physics B 22, n. 01n02 (20 gennaio 2008): 111–12. http://dx.doi.org/10.1142/s0217979208046165.
Holevo, A. S., e M. E. Shirokov. "Mutual and coherent information for infinite-dimensional quantum channels". Problems of Information Transmission 46, n. 3 (settembre 2010): 201–18. http://dx.doi.org/10.1134/s0032946010030014.
Lu, Z. G., J. R. Liu, Y. X. Mao, K. Zeb, G. C. Liu, J. Webber, M. Rahim et al. "Quantum dot multi-wavelength lasers for Tbit/s coherent communications and 5G wireless networks -INVITED". EPJ Web of Conferences 238 (2020): 01003. http://dx.doi.org/10.1051/epjconf/202023801003.
Tesi sul tema "Quantum coherent communications":
Aymeric, Raphaël. "Convergence of quantum and classical communications". Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. https://theses.hal.science/tel-03919212.
Quantum key distribution (QKD) protocols harness fundamental quantum properties of the light to construct communication channels sensitive to eavesdropping. In order to develop the technology at large scale, one of the main challenges to overcome is the deployment cost of such systems. A significant step towards reducing deployment costs would be to use the existing optical fiber infrastructure to perform QKD, since this would relax the need to use dark (and expensive !) fiber. However this also means we must insure QKD protocols can coexist with classical communications, which can be challenging as quantum states are very sensitive to perturbations. Here, we focus particularly on continuous-variable (CV) QKD because their natural proximity to classical coherent communication systems indicates that they are good candidates for coexistence over the same fiber. Assuming CV-QKD is destined to be incorporated in classical communication links, an interesting question is whether the coexistence with classical channels will necessarily be detrimental to the CV-QKD protocol. We show that in some cases, coexistence can actually provide an advantage to the CV-QKD protocol. In a first project, we experimentally demonstrate that a classical channel can be used as a pilot signal for the quantum channel. Thus, the need for pilot-tones, mandatory in a typical CV-QKD protocol, can be relaxed. In a second project, we show that the noise generated by classical channels can be used to ”hide” the quantum signal. The quantum communication therefore can become covert thanks to the classical channels. Covert QKD protocols are interesting because they provide extreme security guarantees. We investigate the necessary conditions for covert CV-QKD as well as scenarios for its deployment in a practical setting
Pes, Salvatore. "Nanostructures-based 1.55 μm-emitting Vertical-(External)-Cavity Surface-Emitting Lasers for microwave photonics and coherent communications". Thesis, Rennes, INSA, 2019. https://tel.archives-ouvertes.fr/tel-02892844.
The work presented in this dissertation focus on the development of InP-based semiconductor vertical-cavity lasers, based on quantum nanostructures and emitting at the telecom wavelengths (1550-1600 nm). A new technological process for the realization of compact VCSELs is described. This process (named TSHEC) has been employed to realize optically-pumped VCSELs, integrated onto a host Silicon platform, with good performances. The same process has been adapted to develop an electrically-driven version of VCSELs: a preliminary study of the confinement section based on a InGaAs-BTJ is presented, together with the development of a mask set. Thanks to the development of the liquid crystals μ-cell technology (in collaboration with LAAS, IMT Atlantique et C2N), we realized a tunable photodiode at 1.55 μm, and a tunable VCSEL is currently under development. This work also presents the first realization of a 1.6 μm- emitting optically-pumped quantum dashes-based VECSELs, and its characterization in multi-mode and single-frequency regime. Finally, the realization of an experimental setup for the investigation of the coupling between two orthogonal eigenstates of a bi- frequency 1.54 μm-emitting SQW-VECSEL has been conceived and realized. This setup, which allowed the direct quantification of the coupling constant on such a device, in the near future will allow performing the same study on anisotropic structures like quantum dashes or quantum dots, with the objective of studying the inhomogeneous broadening effect observed in these gain regions
Harrow, Aram (Aram Wettroth) 1980. "Applications of coherent classical communication and the Schur transform to quantum information theory". Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34973.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references (p. 167-176).
Quantum mechanics has led not only to new physical theories, but also a new understanding of information and computation. Quantum information not only yields new methods for achieving classical tasks such as factoring and key distribution but also suggests a completely new set of quantum problems, such as sending quantum information over quantum channels or efficiently performing particular basis changes on a quantum computer. This thesis contributes two new, purely quantum, tools to quantum information theory-coherent classical communication in the first half and an efficient quantum circuit for the Schur transform in the second half. The first part of this thesis (Chapters 1-4) is in fact built around two loosely overlapping themes. One is quantum Shannon theory, a broad class of coding theorems that includes Shannon and Schumacher data compression, channel coding, entanglement distillation and many others. The second, more specic, theme is the concept of using unitary quantum interactions to communicate between two parties. We begin by presenting new formalism: a general framework for Shannon theory that describes communication tasks in terms of fundamental information processing resources, such as entanglement and classical communication. Then we discuss communication with unitary gates and introduce the concept of coherent classical communication, in which classical messages are sent via some nearly unitary process. We find that coherent classical communication can be used to derive several new quantum protocols and unify them both conceptually and operationally with old ones.
(cont.) Finally, we use these new protocols to prove optimal trade-o curves for a wide variety of coding problems in which a noisy channel or state is consumed and two noiseless resources are either consumed or generated at some rate. The second half of the thesis (Chapters 5-8) is based on the Schur transform, which maps between the computational basis of (Cd)n and a basis (known as the Schur basis) which simultaneously diagonalizes the commuting actions of the symmetric group Sn and the unitary group Ud. The Schur transform is used as a subroutine in many quantum communication protocols (which we review and further develop), but previously no polynomial-time quantum circuit for the Schur transform was known. We give such a polynomial-time quantum circuit based on the Clebsch-Gordan transform and then give algorithmic connections between the Schur transform and the quantum Fourier transform on Sn.
by Aram Wettroth Harrow.
Ph.D.
LI, XIAOXU. "WAVELENGTH-DIVISION-MULTIPLEXED TRANSMISSION USING SEMICONDUCTOR OPTICAL AMPLIFIERS AND ELECTRONIC IMPAIRMENT COMPENSATION". Doctoral diss., University of Central Florida, 2009. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4025.
Ph.D.
Optics and Photonics
Optics and Photonics
Optics PhD
Jarzyna, Marcin. "Phase coherence in quantum metrology and communication". Doctoral thesis, 2016. https://depotuw.ceon.pl/handle/item/1715.
Zhong, Manjin. "Development of Persistent Quantum Memories". Phd thesis, 2017. http://hdl.handle.net/1885/133864.
Rufeil, Fiori Elena. "Dinámica coherente de excitaciones de carga y espín en sistemas unidimensionales /". Doctoral thesis, 2009. http://hdl.handle.net/11086/133.
El control y diseño de la dinámica cuántica constituye el núcleo del procesamiento de información cuántica. Sin embargo, en sistemas de espines acoplados la alta conectividad de las interacciones y la complejidad de los estados accesibles a temperatura ambiente dificultan la obtención del grado de control necesario. En esta tesis mostramos alternativas para obtener una dinámica coherente controlada que puede obtenerse en sistemas de espines interactuantes en experimentos de NMR. La clave para obtener el grado de simplicidad deseado es el adecuado diseño de las interacciones efectivas y la elección de la topología de los acoplamientos.
Libri sul tema "Quantum coherent communications":
Greve, Kristiaan De. Towards Solid-State Quantum Repeaters: Ultrafast, Coherent Optical Control and Spin-Photon Entanglement in Charged InAs Quantum Dots. Springer, 2016.
Greve, Kristiaan De. Towards Solid-State Quantum Repeaters: Ultrafast, Coherent Optical Control and Spin-Photon Entanglement in Charged Inas Quantum Dots. Springer London, Limited, 2013.
Kurizki, Gershon, e Goren Gordon. The Quantum Matrix. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198787464.001.0001.
Perillán, José G. Science Between Myth and History. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198864967.001.0001.
Capitoli di libri sul tema "Quantum coherent communications":
Westmoreland, Michael, e Benjamin Schumacher. "Capacities of Quantum Channels and Quantum Coherent Information". In Quantum Computing and Quantum Communications, 285–95. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/3-540-49208-9_25.
Aschauer, Hans, e Hans J. Briegel. "Quantum Communication and Decoherence". In Coherent Evolution in Noisy Environments, 235–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-45855-7_6.
Leonhardt, Ulf, e Igor Jex. "Quantum-State Tomography and Quantum Communication". In Coherence and Quantum Optics VII, 675–76. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9742-8_208.
Kumar, P. "Fiber generated quantum correlations for quantum-optical communications". In Coherence and Quantum Optics VIII, 185. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_21.
Fiorentino, M., J. E. Sharping, A. Coker e P. Kumar. "Fiber generated quantum correlations for quantum-optical communications". In Coherence and Quantum Optics VIII, 351–52. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4419-8907-9_64.
Burkard, Guido, Hans-Andreas Engel e Daniel Loss. "Spintronics and Quantum Dots for Quantum Computing and Quantum Communication". In Complexity from Microscopic to Macroscopic Scales: Coherence and Large Deviations, 83–104. Dordrecht: Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0419-0_4.
Tosi, M. P. "Coherence and Superfluidity in Atomic Gases". In Quantum Communication and Information Technologies, 299–328. Dordrecht: Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0171-7_13.
Li, Ming, e Li Li. "Coherent State Based Quantum Optical Communication with Mature Classical Infrastructure". In Lecture Notes in Electrical Engineering, 2647–53. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-13-9409-6_323.
Vourdas, A. "Resolutions of the Identity in Terms of Line Integrals of Coherent States and Their Use for Quantum State Engineering". In Quantum Communication, Computing, and Measurement, 265–68. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5923-8_28.
Ma, Xudong, e Yongming Li. "Coherence of Quantum States Based on Mutually Unbiased Bases in $$\mathbb {C}^4$$". In Communications in Computer and Information Science, 43–60. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-8152-4_3.
Atti di convegni sul tema "Quantum coherent communications":
Nieto-Chaupis, Huber. "Molecular Communications as Quantum Mechanics Coherent States". In 2023 International Conference on Electrical, Computer and Energy Technologies (ICECET). IEEE, 2023. http://dx.doi.org/10.1109/icecet58911.2023.10389333.
Nieto-Chaupis, Huber. "Coherent Molecular Communications By Using Quantum Mechanics". In 2023 IEEE/ACIS 8th International Conference on Big Data, Cloud Computing, and Data Science (BCD). IEEE, 2023. http://dx.doi.org/10.1109/bcd57833.2023.10466283.
Liu, Shilong, shuai shi, yinhai li, Shikai Liu, Zhiyuan Zhou e Bao-Sen Shi. "Coherent frequency bridge between visible and telecommunications band for vortex light". In Quantum Communications and Quantum Imaging XVI, a cura di Ronald E. Meyers, Yanhua Shih e Keith S. Deacon. SPIE, 2018. http://dx.doi.org/10.1117/12.2320020.
Kazovsky, Leonid G., e Georgios Kalogerakis. "Modern coherent optical communications". In 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference. IEEE, 2006. http://dx.doi.org/10.1109/cleo.2006.4627709.
Schaeffer, Christian G., e Sebastian Kleis. "Design of Coherent Receivers for Quantum Communication". In Asia Communications and Photonics Conference. Washington, D.C.: OSA, 2016. http://dx.doi.org/10.1364/acpc.2016.ath3d.3.
Azuma, Koji. "Optimal single-error-type entanglement generation via coherent-state transmission (Conference Presentation)". In Quantum Communications and Quantum Imaging XX, a cura di Keith S. Deacon e Ronald E. Meyers. SPIE, 2022. http://dx.doi.org/10.1117/12.2633279.
Virzì, Salvatore, Cecilia Clivati, Alice Meda, Simone Donadello, Marco Genovese, Filippo Levi, Alberto Mura, Ivo Degiovanni e Davide Calonico. "Coherent phase transfer for real-world twin-field quantum key distribution (Conference Presentation)". In Quantum Communications and Quantum Imaging XX, a cura di Keith S. Deacon e Ronald E. Meyers. SPIE, 2022. http://dx.doi.org/10.1117/12.2646325.
Luo, Qingbin, Guowu Yang, Kun She, Xiaoyu Li e Yuqi Wang. "Quantum homomorphic signature using coherent states". In 2016 2nd IEEE International Conference on Computer and Communications (ICCC). IEEE, 2016. http://dx.doi.org/10.1109/compcomm.2016.7924865.
Djordjevic, Ivan B. "Entanglement Assisted Bistatic Radars Outperforming Coherent States-based Quantum Radars". In Signal Processing in Photonic Communications. Washington, D.C.: Optica Publishing Group, 2022. http://dx.doi.org/10.1364/sppcom.2022.spw2j.4.
Mendieta, F. J., A. Arvizu, R. Muraoka, P. Gallion e J. Sanchez. "Coherent photodetection with applications in quantum communications and cryptography". In Seventh Symposium on Optics in Industry, a cura di Guillermo García Torales, Jorge L. Flores Núñez, Gilberto Gómez Rosas e Eric Rosas. SPIE, 2009. http://dx.doi.org/10.1117/12.848861.
Rapporti di organizzazioni sul tema "Quantum coherent communications":
Perdigão, Rui A. P. New Horizons of Predictability in Complex Dynamical Systems: From Fundamental Physics to Climate and Society. Meteoceanics, ottobre 2021. http://dx.doi.org/10.46337/211021.