Email:

mjohnson [at] perimeterinstitute.ca

Mailing address at York University:

128 Petrie Science and Engineering Building
York University
4700 Keele Street
Toronto, Ontario
M3J 1P3, Canada

Mailing address at Perimeter Institute:

Perimeter Institute for Theoretical Physics
31 Caroline St. N.
Waterloo, Ontario
N2L 2Y5, Canada