https://psi-online.perimeterinstitute.ca/ 2026-04-03T18:03:20Z 1.0 https://psi-online.perimeterinstitute.ca/collections 2026-04-03T18:03:20Z 0.9 https://psi-online.perimeterinstitute.ca/collections/courses 2020-10-14T13:26:20Z 0.9 https://psi-online.perimeterinstitute.ca/courses/condensed-matter-iii-student 2021-04-26T16:18:11Z 0.9 https://psi-online.perimeterinstitute.ca/courses/cosmology 2021-04-26T16:18:13Z 0.9 https://psi-online.perimeterinstitute.ca/courses/quantum-field-theory-i-student 2021-04-26T16:18:10Z 0.9 https://psi-online.perimeterinstitute.ca/courses/quantum-field-theory-ii-student 2021-04-26T16:18:15Z 0.9 https://psi-online.perimeterinstitute.ca/courses/statistical-physics 2021-04-26T16:18:13Z 0.9 https://psi-online.perimeterinstitute.ca/courses/theoretical-mechanics 2021-04-26T16:18:14Z 0.9 https://psi-online.perimeterinstitute.ca/courses/condensed-matter-iii-instructor 2022-10-21T13:33:07Z 0.9 https://psi-online.perimeterinstitute.ca/courses/quantum-field-theory-i-instructor 2021-04-26T16:18:14Z 0.9 https://psi-online.perimeterinstitute.ca/courses/quantum-field-theory-ii-instructor 2021-04-26T16:18:10Z 0.9