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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Spontaneous atomic transitions in dielectric microcavities. / 在介電質微空腔中的自發原子躍遷 / Spontaneous atomic transitions in dielectric microcavities. / Zai jie dian zhi wei kong qiang zhong de zi fa yuan zi yao qian

January 2006 (has links)
Lau Pak Hong = 在介電質微空腔中的自發原子躍遷 / 劉柏康. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2006. / Includes bibliographical references (leaves 145-149). / Text in English; abstracts in English and Chinese. / Lau Pak Hong = Zai jie dian zhi wei kong qiang zhong de zi fa yuan zi yao qian / Liu Bokang. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Convention --- p.5 / Chapter 2 --- The Hamiltonian of the System --- p.7 / Chapter 2.1 --- Quantization of Electromagnetic Field in the Presence of Dielectric Media --- p.7 / Chapter 2.1.1 --- Basic Equations --- p.8 / Chapter 2.1.2 --- Canonical Quantization --- p.10 / Chapter 2.1.3 --- Eigenmode Expansion --- p.11 / Chapter 2.2 --- Atom-Field Interaction --- p.15 / Chapter 2.2.1 --- The Atom --- p.16 / Chapter 2.2.2 --- The Interaction --- p.18 / Chapter 3 --- Application to Spherical Cavity --- p.20 / Chapter 3.1 --- Local Density of States --- p.20 / Chapter 3.2 --- Field Modes --- p.22 / Chapter 3.3 --- Dynamics of a Single Atom --- p.26 / Chapter 3.4 --- Dynamics of Two Atoms --- p.31 / Chapter 4 --- Quantization of Electromagnetic Field in the Presence of Dispersive and Absorptive Dielectrics --- p.39 / Chapter 4.1 --- Formalism --- p.40 / Chapter 4.1.1 --- Failure of the Mode of Universe Approach --- p.40 / Chapter 4.1.2 --- Quantization --- p.41 / Chapter 4.2 --- Spontaneous Emission --- p.43 / Chapter 4.3 --- Relationship to Classical Treatment --- p.46 / Chapter 4.3.1 --- Emission Rate and Power --- p.47 / Chapter 4.3.2 --- Intensity --- p.48 / Chapter 5 --- The Finite-Difference Time-Domain Algorithm --- p.52 / Chapter 5.1 --- Basic Algorithm --- p.53 / Chapter 5.2 --- Perfectly Matched Layer Boundary Conditions --- p.57 / Chapter 5.2.1 --- Properties of PML Medium --- p.58 / Chapter 5.2.2 --- Discretization of PML Medium --- p.61 / Chapter 5.2.3 --- Corner Regions --- p.63 / Chapter 5.3 --- Material Boundary --- p.64 / Chapter 5.4 --- Stability Analysis --- p.68 / Chapter 5.4.1 --- The Courant Condition --- p.68 / Chapter 5.4.2 --- Numerical Dispersion --- p.71 / Chapter 5.5 --- Sources --- p.72 / Chapter 5.5.1 --- Volume Factor --- p.73 / Chapter 5.5.2 --- The Dyadic Green Functions --- p.75 / Chapter 5.5.3 --- Lorentzian Source --- p.76 / Chapter 5.5.4 --- Sinusoidal Source --- p.81 / Chapter 5.5.5 --- Gaussian Source --- p.85 / Chapter 5.5.6 --- Poynting Flux Calculation --- p.87 / Chapter 5.5.7 --- Comparison and Discussion of the Method --- p.87 / Chapter 6 --- Application to Different Geometries --- p.90 / Chapter 6.1 --- Bulk Material --- p.91 / Chapter 6.2 --- Sphere --- p.92 / Chapter 6.3 --- Circular Disk --- p.98 / Chapter 6.4 --- Pentagonal Cavity --- p.104 / Chapter 6.5 --- Elliptic Disk --- p.112 / Chapter 6.5.1 --- Axial Dipole --- p.117 / Chapter 6.5.2 --- Radial Dipole --- p.119 / Chapter 6.5.3 --- Intensity --- p.120 / Chapter 6.6 --- Quadrupole Disk --- p.123 / Chapter 6.6.1 --- Axial Dipole --- p.129 / Chapter 6.6.2 --- Radial Dipole --- p.131 / Chapter 6.6.3 --- Comparison of the Elliptic and Quadrupole Disks --- p.132 / Chapter 7 --- Application to Absorptive and Gain Media --- p.135 / Chapter 7.1 --- Sign of Relative Permittivity of Absorptive and Gain System . . --- p.137 / Chapter 7.2 --- FDTD Algorithm for Gain and Loss --- p.138 / Chapter 7.3 --- Results and Discussions --- p.138 / Chapter 8 --- Conclusion --- p.142 / Bibliography --- p.145 / Chapter A --- Imaginary Part of the Green Function --- p.150 / Chapter B --- The Pade Approximation --- p.151
2

Theory and applications of photon-atom interactions in quantum information: 光子與原子相互作用理論及其在量子訊息論中的應用. / 光子與原子相互作用理論及其在量子訊息論中的應用 / CUHK electronic theses & dissertations collection / Digital dissertation consortium / Theory and applications of photon-atom interactions in quantum information: Guang zi yu yuan zi xiang hu zuo yong li lun ji qi zai liang zi xun xi lun zhong de ying yong. / Guang zi yu yuan zi xiang hu zuo yong li lun ji qi zai liang zi xun xi lun zhong de ying yong

January 2003 (has links)
Chan Tian Wen. / "July 2003." / Thesis (Ph.D.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (p. 174-181). / Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Electronic reproduction. Ann Arbor, MI : ProQuest Information and Learning Company, [200-] System requirements: Adobe Acrobat Reader. Available via World Wide Web. / Mode of access: World Wide Web. / Abstracts in English and Chinese. / Chan Tian Wen.
3

study of collective photon-atom interactions in cavity QED models. / A study of collective photon-atom interactions in cavity QED models.

January 2007 (has links)
Lee, Kwun Yan = 腔量子電動力學模型中光子-原子集體相互作用 / 李冠昕. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2007. / Includes bibliographical references (leaves 81-86). / Text in English; abstracts in English and Chinese. / Lee, Kwun Yan = Qiang liang zi dian dong li xue mo xing zhong guang zi-yuan zi ji ti xiang hu zuo yong / Li Guanxin. / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Basic description of cavity QED systems --- p.4 / Chapter 2.1 --- Mode functions --- p.4 / Chapter 2.2 --- Quantization of electromagnetic fields --- p.7 / Chapter 2.2.1 --- Generalized modes of photons --- p.8 / Chapter 2.2.2 --- Cavity modes and dipole interactions --- p.10 / Chapter 2.3 --- Interaction models --- p.11 / Chapter 2.3.1 --- Jaynes-Cummings model --- p.12 / Chapter 2.3.2 --- Raman model (∧-type atoms) --- p.12 / Chapter 2.3.3 --- Two-model interaction: X-like 4-level atoms --- p.14 / Chapter 3 --- Phot on-atom entanglement generated by AC Stark shift --- p.16 / Chapter 3.1 --- Introduction --- p.16 / Chapter 3.2 --- The model --- p.18 / Chapter 3.3 --- Evolution of states --- p.19 / Chapter 3.4 --- Schmidt analysis of entanglement --- p.21 / Chapter 3.5 --- Break time: Deviation from continuous approximation --- p.26 / Chapter 3.6 --- Fractional revival of entanglement --- p.29 / Chapter 3.7 --- Number-phase correlation --- p.29 / Chapter 3.8 --- Consideration of cavity field leakage: Input-output relation --- p.31 / Chapter 4 --- Dynamical modes in Dicke superradiance --- p.36 / Chapter 4.1 --- Introduction --- p.36 / Chapter 4.2 --- Spontaneous emission from a single atom --- p.38 / Chapter 4.2.1 --- Free space problem --- p.39 / Chapter 4.2.2 --- Leaky cavity problem --- p.40 / Chapter 4.3 --- Spontaneous emission for NA-atoms --- p.43 / Chapter 4.4 --- Dynamical mode formalism --- p.44 / Chapter 4.4.1 --- Motivation --- p.44 / Chapter 4.4.2 --- Optimal dynamic mode functions --- p.46 / Chapter 4.4.3 --- Mode purity function --- p.48 / Chapter 4.4.4 --- Two-time collective dipole correlation function --- p.48 / Chapter 4.5 --- Results --- p.51 / Chapter 4.5.1 --- Two-atom case --- p.52 / Chapter 4.5.2 --- Many atoms case: Fully excited systems --- p.52 / Chapter 4.5.3 --- Many atoms case: Halfly excited systems --- p.56 / Chapter 4.5.4 --- Many atoms case: NA ´ؤ δ excited systems --- p.57 / Chapter 4.6 --- Remarks on three-dimensional systems --- p.58 / Chapter 5 --- Single-mode treatment of Raman interaction inside a cavity --- p.61 / Chapter 5.1 --- Introduction --- p.61 / Chapter 5.2 --- The model and Hamiltonians --- p.63 / Chapter 5.3 --- A dominant dynamic field mode --- p.66 / Chapter 5.3.1 --- Bosonization: Undepleted atom number approximation . --- p.66 / Chapter 5.3.2 --- Bosonization: Inclusion of atom number depletion --- p.70 / Chapter 5.4 --- Single-mode interaction by time-dependent variational principle --- p.72 / Chapter 5.5 --- Photon-atom squeezing --- p.75 / Chapter 6 --- Conclusion --- p.78 / Bibliography --- p.81 / Chapter A --- Dicke states and spin coherent states --- p.87 / Chapter A.1 --- Dicke states --- p.87 / Chapter A.2 --- Spin coherent states --- p.90 / Chapter B --- Adiabatic elimination and AC Stark shift --- p.93 / Chapter B.1 --- 2-level system --- p.93 / Chapter B.2 --- Raman transition --- p.94 / Chapter C --- Derivation of Master equation --- p.98 / Chapter C.1 --- Dissipative quantum systems: The master equation approach --- p.98 / Chapter C.1.1 --- Born and Markov approximation --- p.99 / Chapter C.2 --- Master equation in collective spontaneous emissions --- p.103 / Chapter C.3 --- Analytical solution by Laplace transform --- p.106
4

Photoproduction of [rho]⁰ Mesons on complex nuclei

Sanders, Gary H. (Gary Hilton), 1946- January 1971 (has links)
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Physics, 1971. / Vita. On t.p., "[rho]" appears as the lower case Greet letter. / Includes bibliographical references (leaves 68-70). / An experiment was performed on the reaction y + A + A + p0 + A + [pi]+ + [pi]- the DESY 7.5 GeV electron synchrotron. Using a double arm magnetic spectrometer, approximately 106 dipion events were detected on thirteen complex nuclei covering a range from Beryllium to Uranium. The events were in a kinematic region defined by 20 intervals in dipion mass from 400 to 1000 MeV/c 2, 10 intervals in the po resonance momentum from 3.5 to 7 GeV/c, and 20 intervals in the transverse momentum transfer from 0.0 to -0.04 (GeV/c) . The data were corrected for systematic effects and differential cross-sections da/dndm(A,m,p,t) were extracted, revealing the predominant dynamical features of the data. Further analysis was carried out using current models for photoproduction and scattering on complex nuclei. The aim of this analysis, was to: 1) study nuclear density distributions by fitting the t-dependence of the cross-sections for each A to determine the nuclear radii seen by the po meson. 2) extract the absolute and relative forward po production cross-sections by fixing A, p, and t and studying the dipion spectrum as a function of invariant mass. This gives a determination of the po line-shape and background. 3) extract the po-nucleon cross-section apN and the y-p coupling constant y2 /4r. pN By studying the nuclear density p distributions and the A-dependence of the production cross-sections, one determines the rate of reabsorption of po by nuclear matter and the effective single-nucleon forward production cross-section Ifo12 and the two quantities above in a self-consistent manner. Results of the analysis are: ... Cross-sections and resonance parameters are detailed in the text. / by Gary Hilton Sanders. / Ph.D.
5

Photoproduction of pseudoscalar mesons at high energy.

Ray, Siddhartha. January 1972 (has links)
No description available.
6

The application of the Mandelstam representation to photoproduction of pions from nucleons

Ball, James Stutsman. January 1960 (has links)
Thesis (Ph. D. in Physics)--University of California, Berkeley, Sept. 1960. / TID-4500 (15th ed.). Includes bibliographical references (p. 78-79).
7

Photoproduction of [pi]⁺ in hydrogen

McPherson, Donald A. January 1961 (has links)
Thesis (Ph.D.)--University of California, Berkeley, 1961. / "UC-34 Physics" -t.p. "TID-4500 (17th Ed.)" -t.p. Includes bibliographical references (p. 79-80).
8

Optical model analysis of nuclear interactions : an investigation into the giant dipole resonance using coupled channels techniques

Hill, A. D. January 1965 (has links)
No description available.
9

Photoproduction of pseudoscalar mesons at high energy.

Ray, Siddhartha. January 1972 (has links)
No description available.
10

Focusing of photon echoes in sodium vapor /

Griffen, Neil Charles January 1978 (has links)
No description available.

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