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PH5015 – Applications of Quantum Physics PH5015 - Applications of Quantum Physics Credits: Number of Lectures: Academic Year: 15.0 27 2016-17 Semester: Lecturer: 1 Dr Donatella Cassettari and Dr Michael Mazilu Overview Quantum mechanics remains one of the most powerful but one of the least understood theories in physics. Typically students gain a good grounding in the theoretical and philosophical aspects of this topic but relatively little exposure to how quantum physics may be implemented in the laboratory and how important key applications are likely to be in future. The aim of the course is to build upon students' knowledge of quantum physics and atomic physics to demonstrate how we can perform quantum mechanics on atoms, ions and photons in the laboratory. Aims & Objectives Learning Outcomes In the first half of the module students should gain a detailed understanding of Laser cooling and Bose-Einstein condensation, Fermi gas production - Experimental tests of quantum mechanics in quantum gases Laser cooling of ions The latest experimental techniques to develop cold quantum gases In the second half of the module students should gain a detailed understanding of photon statistics observations of nonclassical light - quantum cryptography single photon sources This knowledge and understanding is intended to allow students to appreciate and work with physical principles behind experiments using quantum physics using atoms, ions, and photons. They should be able to apply this knowledge to real world problems. They should be able to comment on and evaluate the opportunities and limitations offered by atoms, ions, and photons in quantum physics experiments, and in particular be able to judge the applicability of various systems for experiments in this field. They should be able to use their understanding of the links between the quantum and classical worlds to aid their design of experiments. Synopsis The course begins with laser cooling and Bose-Einstein condensation (BEC) explaining basic laser cooling and experimental methods, Doppler theory, sub Doppler cooling, and magneto-optical traps. Quantum mechanical complementarity (which-way experiments). Evaporative cooling, magnetic trapping. Signatures of BEC and Fermi gases. Matter wave interference. Wave-particle duality studies. Charged ion trapping. Studies of laser cooled ions in traps. Quantum jumps. Atom lasers. The second half of the course explores the statistics of light: coherence. First and second order correlation functions. Chaotic light, coherent light. Photon statistics. Sub and super Poissonian light. Photon bunching and antibunching. Quantum cryptography. Entangled states. Single photon sources. Pre-requisites PH2011, PH2012, MT2001 or (MT2501 and MT2503), (PH3081 or PH3082 or [MT2003 or (MT2506 and MT2507)]), PH3061, PH3062 Anti-requisites None Assessment Continuous Assessment = 20%, 2 Hour Examination = 80% Additional information on continuous assessment etc Page 1 PH5015 – Applications of Quantum Physics Please note that the definitive comments on continuous assessment will be communicated within the module. This section is intended to give an indication of the likely breakdown and timing of the continuous assessment. 5% of the module mark comes from each of two sets of work on tutorial sheet questions. The likely hand-in times are in week 7 and week 9. In the later parts of the semester students will choose a relevant scientific paper to read and to write a “News and Views” article about it in a style similar to that seen in the journal “Nature” plus an associated presentation shortly afterwards. This contributes 10% to the module mark and is due in week 10. Recommended Books Please view University online record: http://resourcelists.st-andrews.ac.uk/modules/ph5015.html General Information Please also read the general information in the School's honours handbook. Page 2