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Josephson has spent his academic career as a member of the Theory of Condensed Matter group at Cambridge's Cavendish Laboratory. He has been a fellow of Trinity College, Cambridge since 1962, and served as professor of physics from 1974 until 2007.
Josephson was born in Cardiff, Wales, to Jewish parents, Mimi (née Weisbard, 1911-1998) and Abraham Josephson. He attended Cardiff High School, where he credits some of the school masters for having helped him, particularly the physics master, Emrys Jones, who introduced him to theoretical physics. In 1957, he went up to Cambridge, where he initially read mathematics at Trinity College, Cambridge. After completing Maths Part II in two years, and finding it somewhat sterile, he decided to switch to physics.
Josephson was known at Cambridge as a brilliant, but shy, student. Physicist John Waldram recalled overhearing Nicholas Kurti, an examiner from Oxford, discuss Josephson's exam results with David Shoenberg, reader in physics at Cambridge, and asking: "Who is this chap Josephson? He seems to be going through the theory like a knife through butter." While still an undergraduate, he published a paper on the Mössbauer effect, pointing out a crucial issue other researchers had overlooked. According to one eminent physicist speaking to Physics World, Josephson wrote several papers important enough to assure him a place in the history of physics even without his discovery of the Josephson effect.
He graduated in 1960 and became a research student in the university's Mond Laboratory on the old Cavendish site, where he was supervised by Brian Pippard. American physicist Philip Anderson, also a future Nobel Prize laureate, spent a year in Cambridge in 1961-1962, and recalled that having Josephson in a class was "a disconcerting experience for a lecturer, I can assure you, because everything had to be right or he would come up and explain it to me after class." It was during this period, as a PhD student in 1962, that he carried out the research that led to his discovery of the Josephson effect; the Cavendish Laboratory unveiled a plaque on the Mond Building dedicated to the discovery in November 2012. He was elected a fellow of Trinity College in 1962, and obtained his PhD in 1964 for a thesis entitled Non-linear conduction in superconductors.
Discovery of the Josephson effect
Josephson was 22 years old when he did the work on quantum tunnelling that won him the Nobel Prize. He discovered that a supercurrent could tunnel through a thin barrier, predicting, according to physicist Andrew Whitaker, that "at a junction of two superconductors, a current will flow even if there is no drop in voltage; that when there is a voltage drop, the current should oscillate at a frequency related to the drop in voltage; and that there is a dependence on any magnetic field." This became known as the Josephson effect and the junction as a Josephson junction.
One-volt NIST Josephson junction array standard with 3020 superconducting junctions.
His calculations were published in Physics Letters (chosen by Pippard because it was a new journal) in a paper entitled "Possible new effects in superconductive tunnelling," received on 8 June 1962 and published on 1 July. They were confirmed experimentally by Philip Anderson and John Rowell of Bell Labs in Princeton; this appeared in their paper, "Probable Observation of the Josephson Superconducting Tunneling Effect," submitted to Physical Review Letters in January 1963.
Before Anderson and Rowell confirmed the calculations, the American physicist John Bardeen, who had shared the 1956 Nobel Prize in Physics (and who shared it again in 1972), objected to Josephson's work. He submitted an article to Physical Review Letters on 25 July 1962, arguing that "there can be no such superfluid flow." The disagreement led to a confrontation in September that year at Queen Mary College, London, at the Eighth International Conference on Low Temperature Physics. When Bardeen (then one of the most eminent physicists in the world) began speaking, Josephson (still a student) stood up and interrupted him. The men exchanged views, reportedly in a civil and soft-spoken manner.
Whitaker writes that the discovery of the Josephson effect led to "much important physics," including the invention of SQUIDs (superconducting quantum interference devices), which are used in geology to make highly sensitive measurements, as well as in medicine and computing.IBM used Josephson's work in 1980 to build a prototype of a computer that would be up to 100 times faster than the IBM 3033 mainframe.
Mond Building on the old Cavendish site where Josephson worked. (The crocodile is there in honour of Ernest Rutherford (1871-1937).)
Josephson was awarded several important prizes for his discovery, including the 1969 Research Corporation Award for outstanding contributions to science, and the Hughes Medal and Holweck Prize in 1972. In 1973 he won the Nobel Prize in Physics, sharing the $122,000 award with two other scientists who had also worked on quantum tunnelling. Josephson was awarded half the prize "for his theoretical predictions of the properties of a supercurrent through a tunnel barrier, in particular those phenomena which are generally known as the Josephson effects".
The other half of the award was shared equally by Japanese physicist Leo Esaki of the Thomas Watson Research Center in Yorktown, New York, and Norwegian-American physicist Ivar Giaever of General Electric in Schenectady, New York, "for their experimental discoveries regarding tunneling phenomena in semiconductors and superconductors, respectively". Unusually, none of the winners had held professorships before being awarded the prize.
Josephson became a fellow of Trinity College, Cambridge in 1962.
Josephson became interested in philosophy of mind in the late sixties and, in particular, in the mind-body problem, and is one of the few scientists to argue that parapsychological phenomena (telepathy, psychokinesis and other paranormal themes) may be real. In 1971, he began practising Transcendental Meditation (TM), which had been taken up by several celebrities, including the Beatles.
Winning the Nobel Prize in 1973 gave him the freedom to work in less orthodox areas, and he became increasingly involved - including during science conferences, to the irritation of fellow scientists - in talking about meditation, telepathy and higher states of consciousness. In 1974, he angered scientists during a colloquium of molecular and cellular biologists in Versailles by inviting them to read the Bhagavad Gita (5th - 2nd century BCE) and the work of Maharishi Mahesh Yogi, the founder of the TM movement, and by arguing about special states of consciousness achieved through meditation. "Nothing forces us," one scientist shouted at him, "to listen to your wild speculations." Biophysicist Henri Atlan wrote that the session ended in uproar.
In May that year, Josephson addressed a symposium held to welcome the Maharishi to Cambridge. The following month, at the first Canadian conference on psychokinesis, he was one of 21 scientists who tested claims by Matthew Manning, a Cambridgeshire teenager who said he had psychokinetic abilities; Josephson apparently told a reporter that he believed Manning's powers were a new kind of energy. He later withdrew or corrected the statement.
Josephson said that Trinity College's tradition of interest in the paranormal meant that he did not dismiss these ideas out of hand. Several presidents of the Society for Psychical Research had been fellows of Trinity, and the Perrott-Warrick Fund, set up in Trinity in 1937 to fund parapsychology research, is still administered by the college. He continued to explore the idea that there is intelligence in nature, particularly after reading Fritjof Capra's The Tao of Physics (1975), and in 1979 took up a more advanced form of TM, known as the TM-Sidhi program. According to Anderson, the TM movement produced a poster showing Josephson levitating several inches above the floor. Josephson argued that meditation could lead to mystical and scientific insights, and that, as a result of it, he had come to believe in a creator.
The Cavendish Laboratory unveiled a plaque on the Mond Building in November 2012 dedicated to the discovery of the Josephson effect.
Josephson became involved in the mid-1970s with a group of physicists associated with the Lawrence Berkeley Laboratory at the University of California, Berkeley, who were investigating paranormal claims. They had organized themselves loosely into the Fundamental Fysiks Group, and had effectively become the Stanford Research Institute's (SRI) "house theorists," according to historian of science David Kaiser. Core members in the group were Elizabeth Rauscher, George Weissmann, John Clauser, Jack Sarfatti, Saul-Paul Sirag, Nick Herbert, Fred Alan Wolf, Fritjof Capra, Henry Stapp, Philippe Eberhard and Gary Zukav. 
Josephson co-organized a symposium on consciousness at Cambridge in 1978, publishing the proceedings as Consciousness and the Physical World (1980), with neuroscientist V. S. Ramachandran. A conference on "Science and Consciousness" followed a year later in Cordoba, Spain, attended by physicists and Jungian psychoanalysts, and addressed by Josephson, Fritjof Capra and David Bohm (1917-1992).
By 1996, he had set up the Mind-Matter Unification Project at the Cavendish Laboratory to explore intelligent processes in nature. In 2002, he told Physics World: "Future science will consider quantum mechanics as the phenomenology of particular kinds of organised complex system. Quantum entanglement would be one manifestation of such organisation, paranormal phenomena another."
Josephson on a Cambridge Wikimedia walk in September 2014
Matthew Reisz wrote in Times Higher Education in 2010 that Josephson has long been one of physics' "more colourful figures." His support for unorthodox causes has attracted criticism from fellow scientists since the 1970s, including from Philip Anderson. Josephson regards the criticism as prejudice, and believes that it has served to deprive him of an academic support network.
He has repeatedly criticized "science by consensus," arguing that the scientific community is too quick to reject certain kinds of ideas. "Anything goes among the physics community - cosmic wormholes, time travel," he argues, "just so long as it keeps its distance from anything mystical or New Age-ish." Referring to this position as "pathological disbelief," he holds it responsible for the rejection by academic journals of papers on the paranormal. He has compared parapsychology to the theory of continental drift, proposed in 1912 by Alfred Wegener (1880-1930) to explain observations that were otherwise inexplicable, which was resisted and ridiculed until evidence led to its acceptance after Wegener's death.
In 2004, Josephson criticized an experiment by the Committee for Skeptical Inquiry to test claims by Russian schoolgirl Natasha Demkina that she could see inside people's bodies using a special kind of vision. The experiment involved her being asked to match six people to their confirmed medical conditions (plus one with none); to pass the test she had to make five correct matches, but made only four. Josephson argued that this was statistically significant, and that the experiment had set her up to fail. One of the researchers, Richard Wiseman, professor of psychology at the University of Hertfordshire, responded that Josephson had no record of publishing on parapsychology. Keith Rennolis, professor of applied statistics at the University of Greenwich, supported Josephson's position, asserting that the experiment was "woefully inadequate" to determine any effect.
Josephson's reputation for promoting unorthodox causes was cemented by his support for the ideas of water memory and cold fusion, both of which are rejected by mainstream scientists. Water memory is purported to provide a possible explanation for homeopathy; it is dismissed by scientists as pseudoscience, although Josephson has expressed support for it since attending a conference at which French immunologist Jacques Benveniste first proposed it. Cold fusion is the hypothesis that nuclear reactions can occur at room temperature. When Martin Fleischmann, the British chemist who pioneered research into it, died in 2012, Josephson wrote a supportive obituary in the Guardian and complained to Nature that its obituary had failed to give Fleischmann due credit.Antony Valentini of Imperial College London withdrew Josephson's invitation to a 2010 conference on the de Broglie-Bohm theory because of his work on the paranormal, although it was reinstated after complaints.
Josephson's defense of paranormal claims and of cold fusion have led him to being described as an exemplar of a sufferer of the hypothetical Nobel disease.
Sir George Thomson (Institute of Measurement and Control), 1984
(2012). "Biological Observer-Participation and Wheeler's 'Law without Law'," in Plamen L. Simeonov, Leslie S. Smith and Andrée C. Ehresmann (eds.), Integral Biomathics, Springer, pp. 244-252.
(2005). "Foreword," in Michael A. Thalbourne and Lance Storm (eds.), Parapsychology in the Twenty-First Century, McFarland, pp. 1-2.
(2003). "We Think That We Think Clearly, But That's Only Because We Don't Think Clearly," in Patrick Colm Hogan and Lalita Pandit (eds.), Rabindranath Tagore: Universality and Tradition, Fairleigh Dickinson University Press, pp. 107-115.
with Tethys Carpenter (1996). "What can Music tell us about the Nature of the Mind? A Platonic Model," in Stuart R. Hameroff, Alfred W. Kaszniak and Alwyn Scott (eds.), Toward a Science of Consciousness, MIT Press, pp. 691-694.
with Colm Wall and Anthony Clark (1995). "Light Barrier", New Scientist, 29 April.
with M. Conrad and D. Home (1987). "Beyond Quantum Theory: A Realist Psycho-Biological Interpretation of Physical Reality," in Alwyn van der Merwe, Franco Selleri and Gino Tarozzi (eds.), Microphysical Reality and Quantum Formalism, Springer, 1987, p. 285ff.
^Andrew Whitaker, The New Quantum Age: From Bell's Theorem to Quantum Computation and Teleportation, Oxford University Press, 2012, p. 273.
^James S. Trefil, "Josephson Effect," The Nature of Science, Houghton Mifflin Harcourt, 2003, p, 225.
Also see A Century of Excellence in Measurements, Standards, and Technology, National Institute of Standards and Technology Special Publication, 1988, p. 315ff.
^Bob Oates, Celebrating the Dawn: Maharishi Mahesh Yogi and the TM technique, Putnam, 1976, p. 204; Emily J. McMurray, Jane Kelly Kosek, and Roger M. Valade, Notable Twentieth-Century Scientists, Gale Research, 1995, p. 1044.
For celebrities and TM, Lola Williamson, Transcendent in America, NYU Press, 2010, p. 93.
^For the TM-Sidhi program, Brian Josephson in Pamela Weintraub, The Omni Interviews, Ticknor & Fields, 1984, p. 317.
For the poster, Jeremy Bernstein, Three Degrees Above Zero: Bell Laboratories in the Information Age, CUP Archive, 1987, p. 142.
Also see Bruce Schechter, The Path of No Resistance: The Story of the Revolution in Superconductivity, Simon & Schuster, 1989, p. 163.
^For mystical and scientific insights, Paul Davies, The Mind of God, Simon & Schuster, 1993, p. 227.
For belief in a creator, Brian Josephson, "There Need Be No Ultimate Conflict Between Science and Religion," in Henry Margenau and Roy Abraham Varghese (eds.), Cosmos, Bios, Theos, Open Court Publishing, 1992, p. 50.
^David Kaiser, "How the Hippies Saved Physics", MIT School of Humanities, Arts and Social Sciences, 2010, from 20:00 mins; for house theorists, from 23:20 mins.
^Yasuo Yuasa, Overcoming Modernity: Synchronicity and Image-Thinking, SUNY Press, 2009, p. 179.
Henri Atlan, Enlightenment to Enlightenment: Intercritique of Science and Myth, SUNY Press, 1993, p. 22ff.
Brian Josephson, "Conscious Experience and its Place in Physics," paper presented at Colloque International Science et Conscience, Cordoba, 1-5 October 1979, in Michel Cazenave (ed.), Science and Consciousness: Two Views of the Universe, Edited Proceedings of the France-Culture and Radio-France Colloquium, Cordoba, Spain, Pergamon Press, 1984.
^Burton Feldman, The Nobel Prize: A History of Genius, Controversy, and Prestige, Arcade Publishing, 2001, p. 199; also see Robert L. Park, Superstition: Belief in the Age of Science, Princeton University Press, 2009, p. 156.
^Brian Josephson, "Physics and the Nobel Prizes", Royal Mail, 2001: "Physicists attempt to reduce the complexity of nature to a single unifying theory, of which the most successful and universal, the quantum theory, has been associated with several Nobel prizes, for example those to Dirac and Heisenberg. Max Planck's original attempts a hundred years ago to explain the precise amount of energy radiated by hot bodies began a process of capturing in mathematical form a mysterious, elusive world containing 'spooky interactions at a distance', real enough however to lead to inventions such as the laser and transistor. "Quantum theory is now being fruitfully combined with theories of information and computation. These developments may lead to an explanation of processes still not understood within conventional science such as telepathy, an area where Britain is at the forefront of research.