Three British scientists behind groundbreaking research into exotic matter in the quantum world were on Tuesday jointly awarded the Nobel Prize in physics.

Awarding the prize in two parts, the Royal Swedish Academy of Sciences handed one half to David J. Thouless of the University of Washington and the second half to F. Duncan M. Haldane of Princeton University and J. Michael Kosterlitz of Brown University.

The scientists had "opened the door on an unknown world where matter can assume strange states," the Nobel committee said in its citation.