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Exploring Dark-State Polaritons in Quantum Information Technology

This study delves into the fascinating world of Dark-State Polaritons, discussing their applications in quantum technologies and photon interactions. It covers theories, setups, and advancements in the field, offering insights into the potential of these quantum phenomena.

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Exploring Dark-State Polaritons in Quantum Information Technology

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  1. The magic of Dark-State Polaritons Mehdi Namazi (Not the guy on the right) Quantum Information Technology Laboratory

  2. EIT

  3. Electromagnetically Induced Transparency (EIT) D1 Line @ 795nm Rev. Mod. Phys. 77, 633 (2005)

  4. EIT : A deeper look With a quantized field: And the collective atomic operators: One can solve a set of Heisenberg-Lagevin equations: A simple solution to these equations is: This is the Dark-State Polaritons wave function! PRL 84, 5094 (2000)

  5. Using EIT for light storage P Ctrl

  6. Improvement of signal to background ratio arXiv:1512.07374 (2015).

  7. Applications of DSP

  8. Storing photonic qubits in warm vapor Scientific Reports 5, 7658 (2015).

  9. Quantum memory setup Quantum State Characterization Quantum Memory Filtering system Photon Generation Probe

  10. Towards Ultra-secure communication networks arXiv:1609.08676 (2016)

  11. Towards photon-photon interactions

  12. Background information I: A quantum simulator using dark state polaritons(DSP) EIT setup Multiple EIT systems - Key idea: build several interacting EIT systems. Original proposal: PRL 105, 173603 (2010). Spinor of light setup

  13. Quantum Simulation with atoms and photons

  14. Background information II: Dirac dynamics using spinor of light Having two Dark State Polaritons of the form: Can be explained in terms of the spinor of light: The spinor obeys a Dirac-like equation: PRL 105, 173603 (2010).

  15. Background Information III. Jackiw-Rebbi model Describes a Dirac field coupled to a soliton or a spatially dependent mass term. Predicts charge fractionalization and is a precursor to topological insulators. A double-tripod EIT scheme follows Dirac dynamics. Original proposal: Scientific Reports 4, 6110 (2014).

  16. Thank You for your time 

  17. Thank You  Special thanks to: Paolo Villoresi (QF lab) Giuseppe Vallone (QF lab) Eden Figueroa (QIT lab) Reihaneh Shahrokhshahi (QIT) Bertus Jordaan (QIT) Connor Goham (QIT) And many more ...

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