Accommodation for delegates
Travel
There are fast coaches from the airport (Dublin Express and Aircoach) that stop near the college: https://www.dublinairport.com/to-from-the-airport/by-bus/dublin-buses. Dublin Express services 782 and 784 and Aircoach service 700 all stop near the college. Dublin Express goes via the port tunnel and is fastest.
Accommodation
There is discounted accommodation for delegates of the conference, in the campus accommodation in Printing House Square, for stays from 9th-14th June. This is mostly single rooms, with a small number of doubles. All rooms are ensuite. To book this accommodation go to https://www.visittrinity.ie/stay/, and book using promo code PHY511. For detailed booking instructions use this link: How to enter promo code. The code is valid till 17th March, for the specified dates and rooms, but there may be other accommodation in college available which can be booked through the Visit Trinity website.
There is also a wide choice of accommodation in Dublin through the usual websites. It's in high demand in June, though, so it's advisable to book early.