eprintid: 18631 rev_number: 20 eprint_status: archive userid: 1781 dir: disk0/00/01/86/31 datestamp: 2015-04-22 09:27:52 lastmod: 2015-04-23 07:28:11 status_changed: 2015-04-22 09:27:52 type: doctoralThesis metadata_visibility: show creators_name: Zhang, Lida title: Coherent control and manipulation of classical or quantum light via nonlocal effects subjects: ddc-530 divisions: i-130001 adv_faculty: af-13 abstract: The thesis is devoted to the theoretical studies of coherent control and manipulation of classical or quantum light via nonlocal effects. At the classical level, controllable light propagation dynamics in the paraxial regime is investigated. The specific type of nonlocal linear effects induced in thermal atomic vapor is explored to achieve diffraction-less and lossless propagation, uniform phase modulation, and frequency conversion with diffractionless image duplication for laser beams with arbitrarily encoded spatial profiles. Next, the study is extended to investigate propagation dynamics in the presence of nonlocal nonlinear effects generated in thermal interacting Rydberg atoms, which mainly reveals simultaneous competition between the nonlocal nonlinear absorption and the modulational instability for each wave component. Moreover, parity-time (PT) sym- metric dynamics in cold Rydberg atoms are exploited, and it is shown that a phase transition from unbroken to broken PT symmetry can be induced by nonlocal nonlinear effects. At the quantum level, it is further proposed to test the quantum nonlocality of single x-ray photons in a system where very weak x-ray pulses interact with 57 Fe nuclei in a thin cavity, such that a Bell-like inequality in the single-photon version is violated. All these proposals are feasible in current experimental settings. date: 2015 id_scheme: DOI id_number: 10.11588/heidok.00018631 ppn_swb: 1656146312 own_urn: urn:nbn:de:bsz:16-heidok-186318 date_accepted: 2015-04-15 advisor: HASH(0x55a9a63d6770) language: eng bibsort: ZHANGLIDACOHERENTCO2015 full_text_status: public citation: Zhang, Lida (2015) Coherent control and manipulation of classical or quantum light via nonlocal effects. [Dissertation] document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/18631/1/2015%20PhDThesis_Lida%20Zhang%20Coherent%20control%20and%20manipulation%20of%20classical%20or%20quantum%20light%20via%20nonlocal%20effects.pdf