1 / 20

Lecture 19 Semi Classical 2-level system (Light-Atom interaction): Rabi & Bloch; atom, QD & NMR

Lecture 19 Semi Classical 2-level system (Light-Atom interaction): Rabi & Bloch; atom, QD & NMR. Reminder: Lecture notes taker: Nick G HWK4 due today. Course Outline. Part 1: basic review: Optics+Quantum; Part 2: Basic Light-matter interaction; laser; Part 3: Quantum Optics of photons

avel
Download Presentation

Lecture 19 Semi Classical 2-level system (Light-Atom interaction): Rabi & Bloch; atom, QD & NMR

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture 19Semi Classical 2-level system (Light-Atom interaction): Rabi & Bloch; atom, QD & NMR Reminder: Lecture notes taker: Nick G HWK4 due today

  2. Course Outline Part 1: basic review: Optics+Quantum; Part 2: Basic Light-matter interaction; laser; Part 3: Quantum Optics of photons Part 4: More advanced light-matter interaction Part 5: Quantum information/photonics/ applications Subject to change; Check updates on course web/wiki

  3. Today’s Plan • Review 2-level system (Schordingereq, Rabi, Bloch) [FQ Chap 9; Blasing lecture 12] • Application to NMR [FQ Appendix E] • NMR/spin picture to understand 2-level system (Schordingereq, Rabi etc) in Pauli matrices [after rotating frame transformation]

  4. Dipole transition TDSE in c1,c2:

  5. Weak Field Limit/Einstein Coefficients 1~ ~0 RWA

  6. Arbitrary/Strong Field –Rabi Flop resonant TDSE with RWA (resonant Rabi osci/flop) Non-resonant Rabi oscillation (reduced amplitude) [not able to completely flop/drive to excited state] |c1|2=1-|c2|2 (non-resonant Rabi frequency)

  7. Damped Rabi oscillation Large t behavior: (small ) Connects to weak field/Einstein ~t (small t) (resonant & moderate damping [cf.Loudon])

  8. 2-level (Rabi) on Bloch Sphere (“rotating frame”) • (“pulse area”/rotation angle) • 1-qubit operation • “pi-pulse” • “pi/2-pulse”

  9. Experimental optical 2-level Rabi Atom (Mollow triplet)

  10. Experimental optical 2-level Rabi Quantum Dot (artificial atom)

  11. Experimental optical 2-level Rabi Quantum Dot (artificial atom)

  12. (L~ )

  13. Larmor Precession

  14. (NMR) Rotating Frame (Rabi oscillation)

  15. (NMR) Bloch Equation Optical analogue: optical Bloch equation

  16. Pauli Matrices (spin-1/2) Bx By Bz Simplest way to understand 2-level TDSE (after rotating frame)

  17. Dressed State • Adiabatic passage • (Landau Zener transition) Read Chap 5 in Steck book: http://atomoptics.uoregon.edu/~dsteck/teaching/quantum-optics/

  18. Experimental optical 2-level Rabi Atom (Mollow triplet)

More Related