PPT-1 Fermions vs. Bosons, continued

why do fermions obey Pauli Exclusion but bosons obey inclusion We dont know why this division but quantum mechanics distinguishes them in the symmetry under exchange of the coordinates of identical. Results primarily from correlations among valence nucleons. .. Instead of pure “shell model” configurations, the wave functions are mixed – linear combinations of many components. .. Leads to a lowering of the collective states and to enhanced transition rates as characteristic signatures.. (s). Why do we need them?. What do they look like?. Have we found them?. γ. Quantum Electrodynamics. predicts one . massless. . spin-1. . gauge boson. PHOTON. g. Quantum . Chromodynamics. . predicts . 2014. Overview. Review of the Standard Model and the Higgs boson. Creating Higgs bosons. The discovery of a “Higgs-like” particle on July 4, 2012. Is it really the Higgs boson?. The Standard Model. Princeton University. Princeton Plasma Physics Laboratory Colloquium. September . 26, . 2012. Is it the Higgs Boson?. Many Princeton undergraduate students have worked on the CMS experiment over the years. . spin . ½ Higgs. -. related particles, mass ~ . m. Higgs. 1. Roland E. Allen, . Minji. Lei , Johannes Kroll, and Joshua . Stenzel. Department of Physics and Astronomy, Texas A&M University. 1. . physics. with. ultracold . fermions. Selim . Jochim. Physikalisches Institut . Universität Heidelberg. The matter we deal with. T. =40nK … 1µK. Density. . n. =10. 9. … 10. 14. cm. -3. Pressures . . with Type-II. Nambu. -Goldstone Boson. . Based on arXiv:1102.4145v2 [. hep. -ph]. Yusuke Hama. 　. (Univ. Tokyo). Tetsuo . Hatsuda. (Univ. Tokyo). Shun Uchino (Kyoto Univ.). 4/20 (2011). 　. Dense Strange Nuclei and Compressed Baryonic Matter. parity-breaking . Weyl. semimetals. Pavel. . Buividovich. (Regensburg). CRC 634 Concluding Conference. Darmstadt, 8-12 June 2015. Weyl. semimetals: “3D graphene” . and more. Weyl. points survive . Hananeh. . Saghiha. Standard model. 12 fermions. Quarks & leptons. Some carry color charge. Some carry electric charge. Classified to 3 generations. Gauge bosons as force . carriers. Figures from . Intrinsic parities of fermions and bosons. Intrinsic parity can be defined if a particle is at rest.. For scalars (spin 0), vectors (spin 1) and tensors, parity is equivalent to a rotation by 2π. P. It’s good to talk to each other. Symmetry and quantum mechanics. Schrodinger and . Weyl. QM=“Applied Group Theory”—operators are generators of symmetries: p=. ħ. /. i. d/dx ; H=. iħd. /. dt. z. -component angular momentum. The . z. -component of the angular momentum operator depends only on . φ. The . particle-on-a-sphere wave . function is the . eigenfunction. of the . l. z. operator.. . Occupation. Numbers. Christian . Schilling. ETH Zürich. in . collaboration. . with. . M.Christandl. , . D.Ebler. ,. . D.Gross. Phys. . Rev. . . Lett. . . 110. , 040404 (2013). Outline. Motivation. Brown–Twiss effect for. bosons and fermions. Guy Shafir & Yang Cao. Nature. Vol 445. 25 January 2007. doi:10.1038/nature05513. Hanbury. Brown–Twiss effect . λ. κ. i. j. Measure the correlation function of two .