Three UK-born scientists win Nobel for unusual states of matter
Awarded for theoretical discoveries of topological phase transitions and topological phases of matter
British-born scientists David Thouless, Duncan Haldane and Michael Kosterlitz were awarded this year’s Nobel Prize in physics on Tuesday for studies on exotic matter that could result in improved materials for electronics or quantum computers.
The Royal Swedish Academy of Sciences cited the three for “theoretical discoveries of topological phase transitions and topological phases of matter.”
Topology is a branch of mathematics that describes properties of objects.
The academy said the laureates’ work in the 1970s and ‘80s opened the door to a previously unknown world where matter takes unusual states or phases.
“Their discoveries have brought about breakthroughs in the theoretical understanding of matter’s mysteries and created new perspectives on the development of innovative materials.”
The judges said there is now hope that “topological materials will be useful for new generations of electronics and superconductors or in future quantum computers,” the academy said.
Test of time
Nobel judges often award discoveries made decades ago to make sure they withstand the test of time.
Thouless, 82, is a professor emeritus at the University of Washington. Haldane, 65, is a physics professor at Princeton University in New Jersey. Kosterlitz, 73, is a physics professor at Brown University in Providence, Rhode Island.
Speaking by a phone link to a news conference in Stockholm, Haldane said he was “very surprised and very gratified” by the award, adding the laureates stumbled onto the discoveries.
“Most of the big discoveries are really that way,” he said. “At least in theoretical things, you never set out to discover something new. You stumble on it and you have the luck to recognize what you’ve found is something very interesting.”
Kosterlitz, a dual UK-US citizen, said he got the news while heading to lunch in Helsinki, where he is currently a visiting professor at Aalto University.
“I’m a little bit dazzled. I’m still trying to take it in,” he told The Associated Press.
While most people are familiar with objects in three dimensions, the Nobel laureates analyzed materials so thin they have only two dimensions, or even one.
Scientists had once been skeptical that any interesting atomic-scale behavior takes place in these settings, but the Nobel laureates proved them wrong, said Phillip Schewe, a physicist and writer at the University of Maryland in College Park.
For example, Kosterlitz and Thouless showed that, against expectations, two-dimensional materials could conduct electricity without any loss to resistance. That property is called superconductivity.
Kosterlitz said he was in his 20s at the time and that his “complete ignorance” was an advantage in challenging the established science because “I didn’t have any preconceived ideas.”
Their analysis relied on topology, which is the mathematical study of properties that don’t change when objects are distorted. A doughnut and a coffee cup are equivalent topologically because they each have exactly one hole. In topology, properties change only in whole steps; you can’t have half a hole.
Each prize has a purse of $930,000 (8 million kronor). The winners also collect a medal and a diploma at the award ceremonies on Dec. 10, the anniversary of prize founder Alfred Nobel’s death in 1896.
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