Matthew PA Fisher

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Matthew PA Fisher (born May 19, 1960 ) is an American physicist who specializes in theoretical solid-state physics. He is a professor at the University of California, Santa Barbara (UCSB) and the Kavli Institute .

Fisher, son of physicist Michael E. Fisher and brother of physicist Daniel S. Fisher , graduated from Cornell University with a bachelor's degree in 1983 and received his doctorate in 1986 from the University of Illinois at Urbana-Champaign . He was then a visiting researcher and from 1988 to 1993 employed at the IBM Thomas J. Watson Research Center . In 1991 he was Miller Visiting Professor at Berkeley. From 1993 he was at UCSB, where he is a professor. At the same time he is at the Kavli Institute.

In 2007 he did research at Microsoft (Station Q) and from 2009 to 2010 he was at Caltech .

He dealt with disordered and strongly correlated electron systems in solid state physics, especially those with unusual (exotic) behavior (such as Mott insulators , one-dimensional Luttinger liquids , quantum spin liquids in frustrated magnetic systems, Bose metal phases, phases of Non-Fermi liquids in two-dimensional electron systems, bosonic topological insulators in three dimensions, quantum phase transitions ), the quantum Hall effect (including bulk and edge states in fractional QHE), transport in mesoscopic systems, superconductors (transition from superconductors and superfluids to insulators ) and high temperature superconductors .

He also explores the question of whether quantum processes in the brain play a role. He was motivated by the question of why a simple element like lithium is so effective in the treatment of schizophrenia, for example, and why the effect is even sensitive (in rat experiments) with regard to the substitution of lithium isotopes (lithium-6 instead of the more common lithium 7). He suspects that nuclear spins of phosphorus act as qubits in the brain.

In 1995 he received the Alan T. Waterman Award and in 1997 the National Academy of Sciences Award for Initiatives in Research. He is a member of the American Academy of Arts and Sciences (2003) and the National Academy of Sciences (2012). He is a fellow of the American Physical Society . In 2015 he received the Oliver E. Buckley Condensed Matter Prize for the discovery and pioneering study of the superconductor-insulator transition, a paradigm for a quantum phase transition .

Web links

Individual evidence

  1. Birth and career data according to American Men and Women of Science , Thomson Gale 2004
  2. ^ Fisher, Quantum Cognition: The possibility of processing with nuclear spins in the brain, Annals of Physics, Volume 362, 2015, pp. 593-602, Arxiv
  3. CP Weingarten, PM Doraiswamy, MPA Fisher, A new spin on neural processing: Quantum cognition, Frontiers in Human Neuroscience 10, 2016, p. 541
  4. ^ Buckley Prize for Fisher