Three MIT faculty members and one alumna have been named winners of prizes awarded by the Breakthrough Prize Foundation, which honor early-career achievements in the fields of physics and mathematics. Physicists Tracy Slatyer and Netta Engelhardt will each receive the 2021 New Horizons in Physics Prize, an award of $100,000 that recognizes promising junior researchers who have produced important work in their field. Mathematicians Lisa Piccirillo and Nina Holden PhD ’18 will each receive the 2021 Maryam Mirzakhani New Frontiers Prize, a $50,000 award that recognizes outstanding early-career women in…