By Plane
Genoa Airport
The closest airport is Genova Airport.
Just at the exit you can find taxis that could drive you to the physics department (via Dodecaneso 33).
The Genoa Airport "Cristoforo Colombo" is linked to "Sestri Ponente Aeroporto" railway station by the Airlink shuttle service. Airlink operates one ride every 15 minutes from 6.00 am to 10 pm. You can use the Airlink service with a normal bus ticket (1,5 euros) or the bus+train local ticket (1,6 euros), and with a tourist ticket (more information on the AMT website).
Alternatively, the Genoa airport is also linked to the main railway station in Genoa (Genova Brignole) by bus with Volabus service. The ticket can be bought on the bus, online or at several bus ticket resellers at the price of 5 euro or 6 euro (depending on the method of purchase). The timetable is consultable at this link.
Milan Airport
The number of flights to the Genova airport is quite limited.
The largest airports nearby are Milan airports (Malpensa, Linate, or Orio al Serio/Bergamo). They are connected to the central railway station in Milan "Milano Centrale" by several train and bus services (consultable on the airports websites). Several trains per day link Milan central railway station to Genoa (Genova Bignole). Trains timetable on the Trenitalia website.
By Train
Take a train towards Genova main railway stations (Genova Brignole).
The train timetable is consultable on the Trenitalia website.
From the railway station
From the Genova Brignole railway station just at the exit you can find taxis that could drive you to the physics department (via Dodecaneso 33).
There are also several bus that will stop near the department.
Numbers: 18, 45, 85, 86, 87. Stop at SAN MARTINO 2/PAPIGLIANO
or 16, 17 stop at EUROPA 1/OSPEDALE SAN MARTINO.
Follow the google maps directions at https://maps.app.goo.gl/bZ6ysjwYJrpAosqy9 .