다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

Quantum plasmonics is a rapidly growing field of research that involves the study of the quantum properties of light and its interaction with matter at the nanoscale Here, surface plasmons - electromagnetic excitations coupled to electron charge density waves on metal-dielectric interfaces or localized on metallic nanostructures - enable the confinement of light to scales far below that of conventional optics In this article we review recent progress in the experimental and theoretical investigation of the quantum properties of surface plasmons, their role in controlling light-matter interactions at the quantum level and potential applications Quantum plasmonics opens up a new frontier in the study of the fundamental physics of surface plasmons and the realization of quantum-controlled devices, including single-photon sources, transistors and ultra-compact circuitry at the nanoscale

Quantum Plasmonics

Squeezed states of the electromagnetic field have been generated by nondegenerate four-wave mixing due to Na atoms in an optical cavity. The optical noise in the cavity, comprised of primarily vacuum fluctuations and a small component of spontaneous emission from the pumped Na atoms, is amplified in one quadrature of the optical field and deamplified in the other quadrature. These quadrature components are measured with a balanced homodyne detector. The total noise level in the deamplified quadrature drops below the vacuum noise level.

Observation of squeezed states generated by four-wave mixing in an optical cavity

▓ Local Randomness for True Random Number generators ▓ Non-local Randomness for distribution of Cryptographic Keys ▓ Towards faster, longer distances and cheaper QKD engines ▓ Quantum Repeaters ▓ Device-Independent Quantum Information Processing

Quantum communication

Journal of Applied Spectroscopy | HomeNuclear Instruments and Methods in Physics Research Atomic Physics authors/titles recent submissionsHome IOP PublishingPhysics Reports Journal ElsevierJournal WikipediaApplied Physics B | HomeThe European Physical Journal D (EPJ D)Chinese Physics B IOPscienceUkrainian Journal of PhysicsJournal of the Optical Society of America B JOSA BInternational Journal of Modern Physics B World ScientificJournal rankings for ARC, all 01* categories sorted Physics WikipediaInternational Scholarly Research Notices | HindawiAbbreviations A B Bioscience Journal Abbreviations Physical Review BEPJ European Physical JournalJournal of Vacuum Science & Technology BScitation HomeInternational Journal of Modern Physics E World ScientificJournal of Physics B: Atomic, Molecular and Optical The European Physical Journal B (EPJ B)Physical Review AAuthors Scientific Papers GS JournalJournal of Physics: Conference Series Latest Impact Factor Canadian Journal of Physics Canadian Science PublishingNuclear Physics B | Journal | ScienceDirect.com by Elsevier International Journal of Modern Physics E. Nuclear Physics. ISSN (print): 0218-3013 | ISSN (online Polarizability effects in atomic nuclei J. N. Orce Vol to provide the scientific background for future joint projects between the experts from these diverse areas in hadron physics. (Read full article.) Neutron star equations of state and GS Journal is your leading platform for high quality science journals, scientific papers and peer-reviewed full-text journals />07-12-2021 � The European Physical Journal D (EPJ D) presents new and original research results in Atomic, Molecular, Optical and Plasma Physics29-11-2021 � Editors' Choice Canadian Journal of Physics Cross sections and ionization rates are atomic data that have important applications in astrophysics and plasma physics. 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Journal of Physics B: atomic, molecular and optical physics

Optical nonreciprocity is important in photonic information processing to route the optical signal or prevent the reverse flow of noise. By adopting the strong nonlinearity associated with a few atoms in a strongly coupled cavity QED system and an asymmetric cavity configuration, we experimentally demonstrate the nonreciprocal transmission between two counterpropagating light fields with extremely low power. The transmission of 18% is achieved for the forward light field, and the maximum blocking ratio for the reverse light is 30 dB. Though the transmission of the forward light can be maximized by optimizing the impedance matching of the cavity, it is ultimately limited by the inherent loss of the scheme. This nonreciprocity can even occur on a few-photon level due to the high optical nonlinearity of the system. The working power can be flexibly tuned by changing the effective number of atoms strongly coupled to the cavity. The idea and result can be applied to optical chips as optical diodes by using fiber-based cavity QED systems. Our work opens up new perspectives for realizing optical nonreciprocity on a few-photon level based on the nonlinearities of atoms strongly coupled to an optical cavity.

Realization of Nonlinear Optical Nonreciprocity on a Few-Photon Level Based on Atoms Strongly Coupled to an Asymmetric Cavity.

Based on the special electromagnetic properties of a 3D strong topological insulator (TI), we discuss, theoretically, the reflection of electromagnetic wave at the interface between a dielectric and a TI, and focus on the polarization conversion between the incident field and reflected field. Two cases, linear polarization and elliptical polarization at oblique incidence are considered. We derive the conditions required for the complete polarization conversion from incident s polarization into reflected p polarization, and vice versa. Furthermore, elliptical polarization incidence also can be modulated to linear or circular polarization after reflection, under special conditions, and the corresponding reflectivity can approach 1. All these special polarization behaviors originate from the intrinsic topological magnetoelectric coupling response in TI. This work provides promising applications of TIs on polarized devices and the polarization splitters.

Polarization conversion of reflected electromagnetic wave from topological insulator

Phase-modulated single-photon router

Using Yasumoto and Oishi’s energy flux method, we evaluated the Goos–Hanchen (GH) and Imbert–Fedorov (IF) shifts of beam incident from the ordinary dielectric upon the topological insulator (TI) with totally internal reflection. Comparing with the case of two ordinary isotropic dielectrics, it is found that the topological parameter Θ of TI can affect two shifts. More important, IF shift appears even for a linear polarized TE or TM beam and achieves the maximum with elliptical polarization, which completely originates from the TI’s intrinsic magnetoelectric coupling effect. This observation provides an optical experimental approach to determine the topological parameters Θ and provide a new way to control the GH shift and IF shift.

Goos–Hänchen and Imbert–Fedorov shifts at the interface of ordinary dielectric and topological insulator

The interactions between a two-level atom and a coherent field with a time-varying frequency have been investigated. The two typical cases\char22{}the frequency of the field varying with time in the forms of sine and rectangle\char22{}have been considered. It is found that the collapse-revival phenomena of the atomic population inversion are deformed as the frequency changing with time in sine form and the rectangular frequency modulation can lead to some new collapses and new revivals in the evolution of the atomic population inversion.

Jingping Xu

Papers

Realization of Nonlinear Optical Nonreciprocity on a Few-Photon Level Based on Atoms Strongly Coupled to an Asymmetric Cavity.

Polarization conversion of reflected electromagnetic wave from topological insulator

Phase-modulated single-photon router

Goos–Hänchen and Imbert–Fedorov shifts at the interface of ordinary dielectric and topological insulator

Interactions of a two-level atom and a field with a time-varying frequency