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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.
11

Nonclassical properties of generalized schrodinger cat states. / 廣義薛定諤貓態之非經典性質 / Nonclassical properties of generalized schrodinger cat states. / Guang yi xue ding e mao tai zhi fei jing dian xing zhi

January 2000 (has links)
Wong Sik Lik = 廣義薛定諤貓態之非經典性質 / 王適力. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 120-124). / Text in English; abstracts in English and Chinese. / Wong Sik Lik = Guang yi xue ding e mao tai zhi fei jing dian xing zhi / Wang Shili. / Acknowledgements --- p.i / Abstract --- p.ii / Chapter 1 --- Introduction --- p.1 / Chapter 2 --- Coherent States and Schrodinger Cats --- p.4 / Chapter 2.1 --- Short review on Quantization of single- mode electromagnetic field --- p.5 / Chapter 2.2 --- Number states as field states --- p.6 / Chapter 2.3 --- Coherent states as field states --- p.7 / Chapter 2.4 --- Features of Coherent states --- p.8 / Chapter 2.4.1 --- Coherent states and Minimum Uncertainty --- p.8 / Chapter 2.4.2 --- Coherent states and Poissonian distribution --- p.10 / Chapter 2.5 --- Non- Classical properties of Schrodinger Cat States --- p.12 / Chapter 2.5.1 --- Quadrature Squeezing of ECS --- p.13 / Chapter 2.5.2 --- Photon Statistics of ECS --- p.14 / Chapter 2.5.3 --- Wigner function of ECS --- p.15 / Chapter 2.5.4 --- Q-function of ECS --- p.23 / Chapter 3 --- Generalized Schodinger Cat States : Perelomov's type GSCS & Barut-Girardello's type GSCS --- p.26 / Chapter 3.1 --- Review on SU(1,1) Lie algebra --- p.26 / Chapter 3.2 --- "SU(1,1) Perelomov's type GCS" --- p.28 / Chapter 3.3 --- "SU(1,1) Perelomov's type GSCS" --- p.30 / Chapter 3.4 --- "SU(1,1) Barut-Girardello's type GCS" --- p.32 / Chapter 3.5 --- "SU(1,1) Barut-Girardello's type GSCS" --- p.33 / Chapter 4 --- Nonclassical properties of Perelomov's type GSCS --- p.36 / Chapter 4.1 --- Nonclassical properties of PGSCS of the single-mode realization --- p.36 / Chapter 4.1.1 --- Quadrature Squeezing of PGSCS --- p.36 / Chapter 4.1.2 --- Photon Statistics of PGSCS --- p.41 / Chapter 4.1.3 --- Q-function of PGSCS --- p.43 / Chapter 4.1.4 --- Wigner function of PGSCS --- p.49 / Chapter 4.2 --- Nonclassical properties of PGSCS of the two-mode realization --- p.49 / Chapter 4.2.1 --- Quadrature Squeezing of PGSCS --- p.49 / Chapter 4.2.2 --- Photon Statistics of PGSCS --- p.52 / Chapter 4.2.3 --- Q´ؤfunction for PGSCS --- p.55 / Chapter 4.2.4 --- Wigner function of PGSCS --- p.58 / Chapter 4.3 --- Nonclassical properties of PGSCS of the Holstein-Primakoff realization --- p.60 / Chapter 4.3.1 --- Quadrature squeezing of PGSCS --- p.60 / Chapter 4.3.2 --- Photon Statistics of PGSCS --- p.62 / Chapter 4.3.3 --- Q-function of PGSCS --- p.62 / Chapter 4.3.4 --- Wigner function of PGSCS --- p.69 / Chapter 5 --- Nonclassical properties of Barut-Girardello's type GSCS --- p.71 / Chapter 5.1 --- Nonclassical properties of BGSCS of the two- mode bosonic realization --- p.71 / Chapter 5.1.1 --- Squeezing properties of BGSCS --- p.71 / Chapter 5.1.2 --- Photon Statistics of BGSCS --- p.74 / Chapter 5.1.3 --- Q- function of BGSCS --- p.77 / Chapter 5.1.4 --- Wigner function of BGSCS --- p.77 / Chapter 5.2 --- Nonclassical properties of BGSCS of the Holstein-Primakoff realization --- p.81 / Chapter 5.2.1 --- Squeezing properties of BGSCS --- p.81 / Chapter 5.2.2 --- Photon statistics of BGSCS --- p.83 / Chapter 5.2.3 --- Q- function of BGSCS --- p.83 / Chapter 5.2.4 --- Wigner function of BGSCS --- p.85 / Chapter 6 --- "SU(1,1) Squeezing and Generalized Q´ؤfunction" --- p.90 / Chapter 6.1 --- "SU(1,1) Squeezing of PGSCS & BGSCS" --- p.90 / Chapter 6.1.1 --- "Reviews on SU(1,1) squeezing" --- p.90 / Chapter 6.1.2 --- "SU(1,1) Squeezing of PGSCS" --- p.92 / Chapter 6.1.3 --- "SU(1,1) Squeezing of BGSCS" --- p.93 / Chapter 6.2 --- "SU(1,1) Generalized Q´ؤfunction" --- p.95 / Chapter 6.2.1 --- GQk- function of PGSCS --- p.97 / Chapter 6.2.2 --- GQk-function of BGSCS --- p.101 / Chapter 6.2.3 --- GQk´ؤfunction of Glauber coherent state and Squeezed vacuum --- p.103 / Chapter 7 --- Discussion and Conclusion --- p.109 / Appendices --- p.111 / Chapter A --- Derivation of Equations 4.1 and 4.2 --- p.112 / Chapter B --- Derivation of Equation 4.16 --- p.115 / Chapter C --- Derivation of < n > and < n2 > on P.75 --- p.117 / Chapter D --- Deriavation of Equation 6.10 --- p.119 / Bibliography --- p.120
12

study of field fluctuation in open optical cavities =: 開放光學空腔的場漲落之硏究. / 開放光學空腔的場漲落之硏究 / A study of field fluctuation in open optical cavities =: Kai fang guang xue kong qiang de chang zhang luo zhi yan jiu. / Kai fang guang xue kong qiang de chang zhang luo zhi yan jiu

January 1997 (has links)
Ho kai Cheung. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 112-114). / Ho Kai Cheung. / Acknowledgements --- p.i / Abstract --- p.ii / Contents --- p.iii / Chapter Chapter 1. --- Introduction --- p.1 / Chapter Chapter 2. --- QNM and Green's function --- p.6 / Chapter 2.1 --- Introduction to QNM --- p.7 / Chapter 2.2 --- QNM and Green's function --- p.9 / Chapter 2.3 --- Modes of the universe and Green's function --- p.11 / Chapter Chapter 3. --- Correlation function and Green's function --- p.16 / Chapter 3.1 --- Equation of motion approach --- p.17 / Chapter 3.2 --- NM approach --- p.20 / Chapter Chapter 4. --- Correlation function : QNM expansion --- p.23 / Chapter 4.1 --- QNM expansion of correlation function --- p.24 / Chapter 4.2 --- Physical Examples --- p.27 / Chapter 4.2.1 --- One dimensional laser cavity --- p.27 / Chapter 4.2.2 --- Dielectric slab --- p.40 / Chapter Chapter 5. --- Quantization of EM field : modes of the universe approach --- p.49 / Chapter 5.1 --- Spherical wave expansion --- p.49 / Chapter 5.2 --- Quantization of EM field --- p.52 / Chapter 5.3 --- Correlation function : NM expansion --- p.56 / Chapter Chapter 6. --- QNM expansion of EM correlation function I --- p.59 / Chapter 6.1 --- TE part result --- p.61 / Chapter 6.2 --- TM part result --- p.65 / Chapter Chapter 7. --- QNM expansion of EM correlation function II --- p.69 / Chapter 7.1 --- Dyadic Green's function --- p.69 / Chapter 7.2 --- Green's function and correlation function : EM case --- p.72 / Chapter 7.3 --- QNM expansion of correlation function --- p.73 / Chapter Chapter 8. --- Sum rules --- p.76 / Chapter 8.1 --- Proof of sum rules --- p.77 / Chapter 8.2 --- Equivalence of two approaches --- p.78 / Chapter 8.3 --- Discussion of the QNM expansion --- p.79 / Chapter Chapter 9. --- EM field fluctuation in dielectric sphere --- p.82 / Chapter 9.1 --- Modes of the universe approach (revision) --- p.83 / Chapter 9.2 --- QNM approach --- p.85 / Chapter 9.3 --- Increase convergence by sum rules --- p.90 / Chapter Chapter 10. --- Conclusion --- p.97 / Appendix A. Scalar Green's function by normalized NM --- p.100 / Appendix B. Modification of existence of QNM on imaginary axis --- p.102 / Appendix C. Tensor Tij --- p.104 / Appendix D. Evaluation of aW+(wn)/aw --- p.106 / Appendix E. Classical dyadic Green's function --- p.107 / Appendix F. QNM expansion of Tij inside a leaky cavity --- p.109 / Appendix G. Symmetric properties of Fij --- p.111 / Bibliography --- p.112
13

Collective spontaneous emission in the framework of quantum trajectory theory /

Clemens, James Peter, January 2003 (has links)
Thesis (Ph. D.)--University of Oregon, 2003. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 129-135). Also available for download via the World Wide Web; free to University of Oregon users.
14

Experimental studies of optical amplification and absorption by two-level atoms under strong, bichromatic field excitation /

Bochinski, Jason Russell, January 2000 (has links)
Thesis (Ph. D.)--University of Oregon, 2000. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 184-201). Also available for download via the World Wide Web; free to University of Oregon users. Address: http://wwwlib.umi.com/cr/uoregon/fullcit?p9998026.
15

Contrasting quantum mechanics to local hidden variables theories in quantum optics and quantum information science /

Pope, Damian. January 2002 (has links) (PDF)
Thesis (Ph. D.)--University of Queensland, 2002. / Includes bibliographical references.
16

Atomic motion in optical potentials /

Fischer, Martin Christian, January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Vita. Includes bibliographical references (leaves 134-140). Available also in a digital version from Dissertation Abstracts.
17

Dynamic tunneling and chaos in atom optical systems

Luter, Robert Raymond 28 August 2008 (has links)
Not available / text
18

Dynamics of ultracold atoms in optical potentials

Dudarev, Artem 28 August 2008 (has links)
Not available / text
19

Resonance fluorescence and cavity quantum electrodynamics with quantum dots

Muller, Andreas, 1978- 28 August 2008 (has links)
Next-generation information technology is expected to rely on discrete two-state quantum systems that can deterministically emit single photons. Quantum dots are mesoscopic (~10,000 atoms large) semiconductor islands grown in a host crystal of larger band-gap that make well-defined two-level quantum systems and are very attractive due to stability, record coherence times, and the possibility of integrating them into larger structures, such as optical microcavities. This work presents experimental progress towards understanding the coherent optical processes that occur in single quantum dots, particularly such phenomena that might be one day utilized for quantum communication applications. High resolution low temperature optical spectroscopy is used in conjunction with first order (amplitude) and second-order (intensity) correlation measurements of the emitted field. A novel technique is introduced that is capable of harvesting the fluorescence of single dots at the same frequency as the laser, previously impossible due to insurmountable scattering. This technique enables the observation, for the first time, of single quantum dot resonance fluorescence, in both the weak and strong excitation regimes, which forms the basis for deterministic generation of single photons. Guided by the rich theoretical description available from quantum optics with atoms we obtain insight into the complex dynamics of this driven system. Quantum dots confined to novel optical microcavities were further investigated using micro photoluminescence. An optical microcavity properly coupled to a two-level system can profoundly modify its emission characteristics via quantum electrodynamical effects, which are highly attractive for single photon sources. The all-epitaxial structures we probe are distinguished by a bulk morphology that overcomes the fragility problems of existing approaches, and provides high quality factors as well as small mode volumes. Lasing is obtained with larger strucutres. Additionally, isolation of individual dots is further realized in smaller cavities and the Purcell effect observed in time-resolved photon counting experiments. / text
20

Dyadic Green Functions and their applications in Classical and Quantum Nanophotonics

VAN VLACK, COLE PERCY 26 April 2012 (has links)
Research in solid-state nanophotonics and quantum optics has been recently pushing the limits in semiconductor microcavity design. High quality microcavities that confine light into small volumes are now able to drastically alter the local density of states (LDOS). Plasmonic systems can provide smaller effective confinements, however it is unclear if the benefits of confinement are good enough to balance material losses due to non-radiative processes. This thesis presents a compendium of techniques for calculating photonic Green functions in various lossy, inhomogeneous magneto-dielectric systems. Subsequently we derive a rigorous theory of quantum light-matter interactions, valid in both weak and strong coupling limits, and show how the classical photonic Green function is developed to calculate Purcell factors, Lamb shifts, and the near and far field spectra from a single photon emitter. Using these techniques, this work investigates the classical and quantum optical properties of a variety of inhomogeneous structures, including their coupling to single photon emitters. This includes examining Purcell factors above negative index slabs and showing the convergence of many slow-light modes leads to a drastic increase in the LDOS along with large Lamb shifts. The optical trapping of metallic nanoparticles is examined above a negative index slab and a silver half-space, showing the importance of interparticle coupling on the optical forces. Then the interaction between a quantum dot and a metallic nanoparticle is studied where far-field strong coupling effects are observed only when the metallic nanoparticle is considered beyond the dipole approximation. Finally, this work addresses the issue of the LDOS diverging in lossy materials, which necessitates a description of spontaneous emission beyond the dipole approximation; the ``local field problem'' in quantum optics is revisited and generalized to include local field corrections for use in any photonic medium. The strength of finite-difference time-domain techniques is demonstrated in a number of cases for the calculation of regularized Green functions in lossy inhomogeneous media. This thesis presents a comprehensive study of Green function approaches to model classical and quantum light-matter interactions in arbitrary nanophotonic structures, including quantum dots, semiconductor microcavities, negative index waveguides, metallic half-spaces and metallic nanoparticles. / Thesis (Ph.D, Physics, Engineering Physics and Astronomy) -- Queen's University, 2012-04-26 15:25:53.178

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