Monday, June 27, 2011

How the Hippies Saved Physics - David Kaiser

Excerpts from the new book How the Hippies Saved Physics: Science, Counterculture, and the Quantum Revival by David Kaiser:

As the Cold War nexus of institutions and ideas collapsed, other modes of being a physicist crept back in. The transition was neither smooth nor painless. Caught in the upheavals, a ragtag crew of young physicists banded together. Elizabeth Rauscher and George Weissmann, both graduate students in Berkeley, California, founded an informal discussion group in a fit of pique and frustration in May 1975. From their earliest years they had been captivated by books about the great revolutions of modern physics: relativity and quantum theory. They had entered the field with heads full of Einstein-styled paradoxes; they, too, dreamed of tackling the deepest questions of space, time, and matter. Yet their formal training had offered none of that. By the time they entered graduate school, the watershed of World War II and the hyperpragmatism of the Cold War had long since shorn off any philosophical veneer from physics students’ curricula. In place of grand thoughts, their classes taught them narrow skills: how to calculate this or that physical effect, rather than what those fancy equations might portend about the nature of reality.

The two students had ties to the Theoretical Physics Division of the Lawrence Berkeley Laboratory, a sprawling national laboratory nestled in the Berkeley hills. They decided to do for themselves what their teachers and textbooks had not. Reserving a big seminar room at the lab, they established an open-door policy: anyone interested in the interpretation of quantum theory was welcome to attend their weekly meetings, joining the others around the large circular table for free-ranging discussions. They continued to meet, week in and week out, over the next three and a half years. They called themselves the “Fundamental Fysiks Group.”

Their informal brainstorming sessions quickly filled up with like-minded seekers. Most members of the Fundamental Fysiks Group found themselves on the periphery of the discipline for reasons beyond their immediate control. Although they held PhDs from elite universities like Columbia, the University of California at Los Angeles, and Stanford, their prospects had dried up or their situations had become untenable with the bust of the early 1970s. Adrift in a sea of professional uncertainty, the young physicists made their way to Berkeley. Finding themselves with time on their hands and questions they still wanted to pursue, they gravitated toward Rauscher and Weissmann’s group. They met on Friday afternoons at 4 p.m.—an informal cap to the week—and the spirited chatter often spilled late into the night at a favorite pizza parlor or Indian restaurant near campus.

The group’s intense, unstructured brainstorming sessions planted seeds that would eventually flower into today’s field of quantum information science; they helped make possible a world in which bankers and politicians shield their most critical missives with quantum encryption. Along the way, members of the Fundamental Fysiks Group, together with parallel efforts from a few other isolated physicists, contributed to a sea change in how we think about information, communication, computation, and the subtle workings of the microworld.
Despite the significance of quantum information science today, the Fundamental Fysiks Group’s contributions lie buried still, overlooked or forgotten in physicists’ collective consciousness. The group’s elision from the annals of history is not entirely surprising. On the face of it, they seemed least likely to play any special role at all. Indeed, from today’s vantage point it may seem shocking that anything of lasting value could have come from the hothouse of psychedelic drugs, transcendental meditation, consciousness expansion, psychic mind-reading, and spiritualist séances in which several members dabbled with such evident glee. History can be funny that way.

No comments: