Guy Geyer Marcus '13 has won the Leroy Apker award for the American Physical Society, the highest prize offered in the United States for an undergraduate thesis in physics. Marcus is the second Wesleyan student to win the prize in three years; Wade Hsu ’10 also claimed the prestigious award. In 2008, Gim Seng Ng ’08 was a finalist for the Apker. “This achievement naturally highlights the quality and seriousness of our undergraduates and our undergraduate program,” said Physics Department Chair Brian Stewart. Marcus' Wesleyan advisor was Greg Voth, associate professor of physics. Marcus is working toward a Ph.D in…