Showing posts with label Theoretical Physics. Show all posts
Showing posts with label Theoretical Physics. Show all posts

Monday, September 7, 2015

Leo Kadanoff: A Great Theoretical Physicist

Leo Kadanoff



  • Phase transition (相転移)

Sunday, September 6, 2015

Martinus J. G. Veltman: Is dark matter real? - with George Smoot

Martinus J. G. Veltman

A. P. Balachandran: Group Theory and Hopf Algebras

A. P. Balachandran

Anthony James Leggett: The Many Worlds Theory

Anthony James Leggett

Anthony James Leggett: Superfluidity

Anthony James Leggett

John Iliopoulos: New Physics at the LHC

John Iliopoulos

  • Yukawa's prediction of π meson
  • Luminosity
  • Atlas experiment
  • Vertex detector
  • NNLO (Next-to-next leading order) QCD


  • Perturbation theory is remarkably reliable.
  • Perturbation theory breaks down only when strong interactions become important. But new strong interactions imply new physics.
  • A light Higgs is found.
  • The Standard Model is complete.
  • Large extra dimensions.
  • No light Higgs is found.
  • New strong interactions.
  • Little Higgs.
  • The Higgs boson is a pseudo-Goldstone boson of a new symmetry.
  • The absence of a light Higgs implies new physics.
  • But a light Higgs is unstable without new physics.




Friday, September 4, 2015

Thursday, September 3, 2015

Toshihide Maskawa (益川敏英): I want the ILC!

Toshihide Maskawa

David Gross: Quantum Field Theory - Past Present Future

David Gross

  • Freeman Dyson
  • Disturbing the Universe
  • Weapons and Hope
  • From Eros to Gaia
  • Quantum field theory
  • Many body theory
  • Perturbative QED
  • Renormalization
  • Strong & weak nuclear forces
  • Standard model
  • Yang Mills theory
  • Asymptotic freedom
  • Non-perturbative QFT
  • Gauge-String duality
  • Quantum gravity
  • Organic synthesis
  • Interaction representation
  • U-matrix
  • Power counting
  • Primitive divergences
  • Precision tests of QED

Wednesday, September 2, 2015

Luciano Maiani: Recalling Nicola Cabibbo

Luciano Maiani


  • Nicola Cabibbo
  • Cabibbo theory
  • Universality of weak interaction
  • Bruno Touschek
  • Frascati
  • G. Salvini
  • Raoul Gatto
  • Berkeley
  • Frascati collider AdA
  • Adone
  • eta meson
  • SU(3) symmetry
  • Positive electron
  • Negative electron
  • Weak interactions of hadrons
  • Richard Feynman
  • Murray Gell-Mann
  • Muon beta decay
  • Neutron beta decay
  • C. G. Sudarshan
  • Universality of the weak interactions
  • Universality of the electric charge
  • Beta decay constant
  • Fermi constants
  • Currentx Current theory
  • Electron muon universality
  • Leptonic decay
  • G-M&L formula
  • Sakata model
  • Strangeness
  • isospin current
  • Weak isospin group
  • P. Franzini
  • Leptonic current
  • Hadronic current


Holger Bech Nielsen and Henrik Georg Bohr

Holger Bech Nielsen


State function (状態量)

Holger Bech Nielsen: CERN and anti miracle

Holger Bech Nielsen

  • Anti-miracle
  • LHC
  • CERN

Tamiaki Yoneya (米谷民明): After Dinner Speeches with John H. Schwarz

Tamiaki Yoneya


Michael Green (マイケル・グリーン)

  • Veneziano paper
  • Strong interaction and weak interaction
  • Quantum field theory
  • S-matrix
  • Bootstrap model
  • Dual model
  • String theory
  • 1972
  • Joël Scherk
  • Yang-mills theory
  • 1974
  • Closed string theory
  • Magnetic monopole
  • Instanton
Tamiaki Yoneya (米谷民明)
  • 1969
  • String theory was called Dual resonance model
  • Leonard Susskind
  • Gabriele Veneziano 
  • Field theory
  • Massless spinning state
  • Local gauge field theory
  • Open string model
  • World sheet
  • Local gauge transformation
  • Dual open string model
  • 1971
  • Masatsugu Minami?
  • General relativity
  • Covariant 
  • Edward Witten
  • 1985
  • 1973
  • Fundamental interaction
John H. Schwarz (ジョン・シュワルツ)
  • Unified field theory
  • Nuclear force
  • 1960
  • Bootstrap model
  • Regge theory
  • Massless particle
  • Extra dimension
  • 1972 - 1973
  • Quantum chromo dynamics, QCD
  • Unified quantum theory of relativity
  • Quantum theory of gravity
  • Murray Gell-mann

Tuesday, September 1, 2015

John Henry Schwarz: Some Basic Superstring Theory

John Henry Schwarz
Part 1

  • T-duality
  • D-Brane
  • Bosonic string
  • D=26
  • Degrees of freedom
  • World sheet
  • Covariant
  • Wave equation
  • Multi-value coordinate
  • Winding number
  • Center of mass
  • Alpha prime
  • String tension
  • String length scale
  • Commutation relation
  • Sigma
  • Tau
  • Left mover
  • Right mover
  • String excitation
  • Dp-brane
  • D25-n-brane
  • Type IIA
  • Type IIB
  • D0-brane
  • Self dual
  • Dirac quantization
  • O9- plane
  • O9+ plane
  • Anti D9-brane
  • USp(32)
Part 2


  • Heterotic string
  • Non perturbative string theory
  • Dilaton field
  • Majorana
  • Gauge group
  • M-theory



Stephen Hawking: Event Horizons and Black Holes

Stephen Hawking


  • Information paradox
  • Firewall
  • Hawking radiation
  • Event horizon
  • Mixed state
  • Unitality
  • Black hole complementarity
  • Equivalence principle of 
  • Singularity
  • anti DeSitter space
  • Apparent horizon

Stephen Hawking: 10 Things You May Not Know About Him

Stephen Hawking

Brian Greene and Lawrence Krauss Discuss the Higgs