Gathering for Gardner g4g_com Madrid 2011

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Quantum excursions and curious encounters in Chemistry 2.0

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Gathering for Gardner g4g_com Madrid 2011

  1. 1. #G4G_CoM_MAD 7/11/2011, FM UCM Madridhttp://c4d.udg.edu
  2. 2. Periodic Table, Elemets and Molecules: Are there Mathematics withinChemistry?Quantum excursions and curious encounters in Chemistry 2.0Madrid, 7 November 2011, Univ Complutense
  3. 3. The Maths of ChemistryBut are those ALLmaths in chemistry?There is some nice stuffout there too!
  4. 4. QuirkChemistryMoebius aromaticity
  5. 5. QuirkChemistryPenrose Staircase
  6. 6. QuirkChemistryBorromean Molecules
  7. 7. QuirkChemistryTrefoil Knotted Molecules To knot or not to knot, that’s the question
  8. 8. QuirkChemistrySolomon Ring Molecules
  9. 9. QuirkChemistryArquimedian Endohedric Molecules
  10. 10. Fullerenes, Nobel Prize 1996 chem
  11. 11. Fullerenes
  12. 12. Endohedral fullerenes: spaceships? He@C60
  13. 13. Nanocars
  14. 14. Nanotubes
  15. 15. Graphene, Nobel Prize 2010 ph
  16. 16. Graphene: light polarizing filterNature Photonics 5, 411–415 (2011) (abril 2011)we demonstrate the operation of a broadband fibre polarizer based on graphene, an ultrathin two-dimensional carbon material. The out- coupled light in the telecommunication band shows a strong s- polarization effect with an extinction ratio of 27 dB. Unlikecan support transverse-electric-mode surface wave propagation due to its linear dispersion of Dirac electrons. polarizers made from thin metal film, a graphene polarizer
  17. 17. Not long ago (AJP 5-Abr): fromSchrödinger’s Cat to Schrödinger’s OctopusQuantum interference of large molecules: wave-particle duality
  18. 18. Schrödinger’s Cat experimentDead or alive?Is card red or black?
  19. 19. QubitQuantum computing
  20. 20. Quantum world Quantum world Physical systems may be represented by states in superpostion, e.g: |alive > |dead > +Quantum state: |0 > + |1 > Quantum bit: qubit e Criptografia, 2007
  21. 21. Einstein-Podolski-Rosen pairsQuantum EntanglementQuantum Cryptography
  22. 22. Quantum key distribution: most important!One-time keypad, length of key=length ofmessageGenerated through EPR pairs Bob Alice Diagonal detector basis Diagonal polarization filters Horizontal- vertical Horizontal-vertical detector basis polarization filters Light source Alice’s bit sequence 1 0 1 1 0 0 1 1 0 0 1 1 1 0 Bob’s detection basis Bob’s measurement 1 0 0 1 0 0 1 1 0 0 0 1 0 0 Retained bit sequence 1 – – 1 0 0 – 1 0 0 – 1 – 0 Curs d’estiu de Criptografia, 2007
  23. 23. Relation to the Gilbreathprinciple and Martin Gardner
  24. 24. My preferred chemist: Panoramix Further information: http://miquelduran.net http://edunomia.net http://c4d.udg.edu miquel.duran@udg.edu twitter, facebook: miquelduran Thank you very much for your attention!
  25. 25. #G4G_CoM a Gironahttp://c4d.udg.edu

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