Notified by email. Inorganic is the field. Seems like interview is a necessary part of the progress given what was stated by the email. 10 minutes to "cover topics primarily related to your research experience and interest in Caltech". Dates given were 1/16-1/18.

Was invited first to come and visit the school during their open house. Was called later in the week and told I was accepted.

Email for 10 minute interview, organic track. Interview slots are for the next week. No GRE. 4 years research experience, no pubs, Fulbright.

email from dept. head! no pubs, 1.5 yrs research experience, fellowship for academic standing

Organic interview. 10 minutes. Slots are from 1/11 to 1/19.

Received interview invite on 1/2/24. Had zoom interview with a professor on 1/8/24.

Offer email received at 0:00 AM CST

4 years of research experience, 3 publications (2 in revision), No GRE

Strong LoR, top 10 undergrad, multiple co-author, and 2 years post grad research