Reversing Delbrück: Using A Genetics Paradigm in SUSY ...
Transcript of Reversing Delbrück: Using A Genetics Paradigm in SUSY ...
Reversing Delbrück: Using A Genetics Paradigm in SUSY String Theories S. James Gates, Jr. Brown Theoretical Physics Center Director, Ford Foundation Professor of Physics, Affiliate Mathematics Professor, and Watson Institute for International & Public Affairs Faculty Fellow BTPC Director Office, Rm 110, Barus Hall, 340 Brook St., Providence, RI 02912 t: 401-863-6452 e: [email protected] w: https://sites.brown,edu/sjgates
PositiveHelicityRight-HandedCircularlyPolarized
NegativeHelicityLeft-HandedCircularlyPolarized
DegreeofFreedom=2
M-Theoryunifiesallknownversionsofsuperstringtheory.In1995Wittenproposeditsexistence.Previouslyworkconstructed,whatappearedtobe,fivedistinctsuperstringtheories.Hisconjecturewasbasedon:(a.)fivesetsof10Dsuperstringequations,and(b.)11Dsupergravity.
Thisexperiencesuggesthowtobuildoff-shellSGtheoriesintoasuperspace:(a.)beginatthecomponentlevelwithanon-shelltheory,and(b.)embedtheknowncomponentfieldsintoasuperfield.Buttheobviousquestioniswhatoff-shellsuperfield?
DelbrückScattering:Deflectionoflightbynucleicausedbyvacuumpolarizationobservedin1975.Arelatedprocessofthescatteringoflightbylight,alsoaresultofvacuumpolarization,wasobservedin1998alsopredictedbyQED.
Tempo and mode of genome evolution • Sequenced264completegenomes(12populationsx11time
pointsx2clones).
Tenaillon et al 2016 Nature SlidecourtesyofR.Lenski
• Neither the ancestor nor any early-generation clone produced a single Cit+ mutant. But clones from generation 20,000 onward produced many additional Cit+ mutants.
• By virtue of its particular route up Mt. Glucose, one lineage stumbled upon a path that led to Mt. Citrate.
SlidecourtesyofR.Lenski
BLASTfindsregionsofsimilaritybetweenbiologicalsequences.Theprogramcomparesnucleotideorproteinsequencestosequencedatabasesandcalculatesthestatisticalsignificance.
BasicLocalAlignmentSearchTool
https://blast.ncbi.nlm.nih.gov/Blast.cgi
AlgorithmicArchitectureRequirements
GraphTheory/NetworkStructureDynkinLabelsPlethysmComputationalPower:LieART
Acknowledgments StephonAlexander Sze-Ning(Hazel)MakJosephBuchbinder KonstantinosKoutrolikosIsaacChappell,II BoanneMacGregorMichealFaux JosephPhillipsJamesGonzales JamesParkerT.Hübsch LubnaRanaWilliamLinch RuebenPolo-SherkYangruiHu VincentRodgersKairyHerrara(graphics) LouisWassinkLeahJenks(collaboratorsandstudentslisted)ResearchsupportedbytheNationalScienceFoundation,BrownUniversity,andtheUniversityofMarylandoverthelastdecade