Introduction to the Bosonic String Part B
Alex Buchel - Western University
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Introduction to the Bosonic String
Alex Buchel - Western University
Meet a Scientist - John Norton
John Norton - University of Pittsburgh
Meet a Scientist - Prof. Bill Unruh
Bill Unruh - University of British Columbia
Meet a Scientist - Jenann Ismael
Jenann Ismael - Columbia University
Meet a Scientist - Gerard Milburn
Gerard Milburn - University of Queensland
From Tornadoes to Black Holes: How to Survive an Information Catastrophe
Patrick Hayden - Stanford University
Mini-Course on Mach's Principle - Lecture 7
Sean Gryb - University of Groningen
Inference and Questions
John Skilling - Maximum Entropy Data Consultants Ltd.
Grad Talks 7
Lucy Liuxuan Zhang - University of Maryland, College Park
Introduction to the Bosonic String Part B
Alex Buchel - Western University
Enhanced Sensitivity to Variation of me/mp in Molecular Spectra
We propose new experiments with high sensitivity to a possible variation of the electron-to-proton mass ratio µ me/mp. We consider a nearly degenerate pair of molecular vibrational levels, each associated with a different electronic potential. With respect to a change in µ, the change in the…
Search for temporal variation of alpha in radio-frequency transitions of atomic dysprosium.
Dmitry Budker - University of California, Berkeley
Stringent constraint on variation in mu from three quasar spectra
Julian King - University of New South Wales (UNSW)
We have used molecular hydrogen transitions in high quality spectra of quasars Q0403-443, Q0347-383 and Q0528-250, to search for a change in the proton-to-electron mass ratio, mu. Our improvement on previous works is twofold. Firstly, we use an improved technique to calibrate the wavelength scale of…
High accuracy 87Sr atomic lattice clock for laboratory measurements of alpha variation.
Jan Thomsen - University of Copenhagen
High precision measurements in atomic and molecular systems have reached unprecedented accuracy owing to the state-of-the-art quantum control of both light and matter. We have recently completed an evaluation of the uncertainty of our 87Sr optical lattice clock at the 1x10e-16 fractional level…
Single-atom Optical Clocks and Fundamental Constants
James Bergquist - National Institute of Standards & Technology
Precision microwave oscillators and interferometers to test Lorentz Invariance and Local Position Invariance
Michael Tobar - University of Western Australia
We present recent and ongoing work that uses precision frequency generation and phase measurement to test the constancy of the speed of light Local Position Invariance (LPI) and the Lorentz Invariance (LI) of the photon with respect to the Standard Model of Particle Physics under the frame work of…
Laboratory search for temporal variations of fundamental constants with optical clocks
Ekkehard Peik - Physikalisch-Technische Bundesanstalt (PTB)
Optical frequency standards based on forbidden transitions of trapped and laser-cooled ions have now achieved significantly higher stability and greater accuracy than primary cesium clocks. At PTB we investigate an optical clock based on the electric quadrupole transition S1/2 – D3/2 at 688 THz in…
Conceptual problems in phenomenological interpretation in searches for variation of constants and violation of various invariances
Savely Karshenboim - Max Planck Institute for Astrophysics (MPA), Garching
At present a number of current or proposed experiments are directed towards a search for a `new physics\' by detecting variations of fundamental physical constants or violations of certain basic symmetries. Various problems related to the phenomenology of such experiments will be considered.
Hadronic Mass Variation in Big Bang Nucleosynthesis
Julian Berengut - University of New South Wales (UNSW)
I will present a brief introduction to Big Bang Nucleosynthesis theory and observation. I will then discuss BBN as a probe of hadronic mass variation in the very early universe, including comparison with the observed Li7 discrepancy. Finally I want to explore the possibility of overproducing Li6 by…
Reconstructing the evolution of dark energy with the variaton of fundamental parameters
Nelson Nunes - University of Cambridge
Coupling variations and equivalence principle violations in string inspired scenarios
Federico Piazza - Aix-Marseille University
I will describe how and why coupling variations and violations of the equivalence principle are generally expected in string theory and focus on two main scenarios/realizations: the Damour-Polyakov and the runaway dilaton.