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Exploring Cold Atoms: Understanding Their Properties and Applications in Quantum Physics

Join Graham Bruce at the Quantum Society Seminar for an enlightening discussion on cold atoms, exploring their fundamental characteristics and profound implications in quantum physics. Discover how particles are classified as bosons or fermions based on intrinsic properties like spin. Learn about techniques such as laser cooling and evaporative cooling, which help achieve ultra-cold temperatures, leading to phenomena like Bose-Einstein condensation and superfluidity. The seminar will delve into the potential applications of these concepts in developing quantum computers and future technologies.

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Exploring Cold Atoms: Understanding Their Properties and Applications in Quantum Physics

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  1. Atoms colder than outer space: How and why? Graham Bruce QuantumSoc Seminar Wednesday, 27th October 2010 Cold Atoms – Graham Bruce

  2. Fermions protons neutrons electrons Bosons photons even combinations of fermions Bosons and Fermions • Depending on its spin angular momentum (an intrinsic property), each particle can be labelled “Boson” or “Fermion” Cold Atoms – Graham Bruce

  3. Divergent Multiple frequencies Incoherent Directional Monochromatic Coherent Bose-Einstein Condensation Cold Atoms – Graham Bruce

  4. How Cold is Ultracold? 273 K 373 K 77 K 4 K 2 K JILA 100 mK 300 nK Cold Atoms – Graham Bruce

  5. How do you use a laser to cool something? This cools atoms to hundreds of microKelvin Comparable to slowing a fire engine with a cricket ball Laser Cooling Cold Atoms – Graham Bruce

  6. Evaporative Cooling • Hundreds of microKelvin is cold, but not cold enough! • This allows us to reach hundreds of nanoKelvin, and the onset of quantum effects Cold Atoms – Graham Bruce

  7. Matter Waves MIT Cold Atoms – Graham Bruce

  8. Superfluidity Effects MIT Cold Atoms – Graham Bruce

  9. The Atomic Toolbox Cold Atoms – Graham Bruce

  10. A Model System Cold Atoms – Graham Bruce

  11. Quantum Computer • Data Register • Entanglement: break Moore’s law Cold Atoms – Graham Bruce

  12. Advertisement MPhys projects (Theory and Experiment) available for this year PhD Opportunities for next academic year Email dc43 Cold Atoms – Graham Bruce

  13. St Andrews Cold Atoms www.st-andrews.ac.uk/~qmgas Cold Atoms – Graham Bruce

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