49 citations · 108 across the 3 of their papers we have counts for
4 papers
Fractional and Integer Charges from Levinson's Theorem
E. Farhi, N. Graham, R. L. Jaffe +1
We compute fractional and integer fermion quantum numbers of static background field configurations using phase shifts and Levinson's theorem. By extending fermionic scattering the…
Heavy Fermion Stabilization of Solitons in 1+1 Dimensions
E. Farhi, N. Graham, R. L. Jaffe +1
We find static solitons stabilized by quantum corrections in a (1+1)-dimensional model with a scalar field chirally coupled to fermions. This model does not support classical solit…
A Heavy Fermion Can Create a Soliton: A 1+1 Dimensional Example
E. Farhi, N. Graham, R. L. Jaffe +1
We show that quantum effects can stabilize a soliton in a model with no soliton at the classical level. The model has a scalar field chirally coupled to a fermion in 1+1 dimensions…
Energy-Momentum Restrictions on the Creation of Gott Time Machines
Sean M. Carroll, Edward Farhi, Alan H. Guth +1
The discovery by Gott of a remarkably simple spacetime with closed timelike curves (CTC's) provides a tool for investigating how the creation of time machines is prevented in class…