Hitoshi Murayama

News

Appointed as Chair of Physics and Detector Working Group for the International Linear Collider International Development Team.

I delivered a speech at United Nations Headquarters in New York on Oct 20, 2014 about how basic research unites the world. It was an event co-organized by CERN and ECOSOC to celebrate 60th year anniversary of CERN for "Science for Peace and Development." See this page for the text and the video.

My work on a new theory for dark matter called Strongly Interacting Massive Particle (SIMP) was featured in Discovery Magazine.

My talk Future Experimental Programs at Nobel Symposium on LHC results was selected as one of the Physica Scripta's Highlights of 2013.

Elected to American Academy of Arts and Sciences.

I am the Principal Investigator of the Prime Focus Spectrograph, a highly multiplexed robotic fiber spectrograph for the Subaru telescope.

Research
I am a theoretical physicist working on a wide range of topics: particle physics beyond the standard model, quantum field theory, collider physics, dark matter, dark energy, inflation, grand unification, neutrino physics. More recently I work on condensed matter physics and lead a collaboration on astronomy called SuMIRe (video). I worked on KamLAND neutrino experiment underground (see the evidence). For further information, see the list of publications. My CV is here in PDF.

Mentoring
My students have done very well. Nima Arkani-Hamed (Faculty, IAS) was the first student I worked with, even though he was officially a student of Lawrence Hall. I officialy supervised André de Gouvêa (Faculty, Northwestern), Alexander Friedland (Senior Staff, SLAC National Laboratory), Aaron Pierce (Faculty, Michigan), Daniel Larson (Lecturer, Harvard), Roni Harnik (Senior Staff, Fermilab), Matt Buckley (Faculty, Rutgers), Sourav Mandal (Institute for Defense Analyses), Vikram Rentala (faculty, ITT Bombay), Willie Klemm (postdoc, Uppsala), Brian Henning (postdoc, U Geneva), Xiaochuan Lu (postdoc, U Oregon), Katelin Schutz (Faculty, McGill), Robert McGehee (postdoc, U Michigan).

Popular Talks (Video)
Science Agora 2020 (Japanese), video
The Matter Of Antimatter: Answering The Cosmic Riddle Of Existence
You exist. You shouldn't. Stars and galaxies and planets exist. They shouldn't. The nascent universe contained equal parts matter and antimatter that should have instantly obliterated each other, turning the Big Bang into the Big Fizzle. And yet, here we are: flesh, blood, stars, moons, sky. Why? Come join us as we dive deep down the rabbit hole of solving the mystery of the missing antimatter.
MODERATOR: Brian Greene
PARTICIPANTS: Marcela Carena, Janet Conrad, Michael Doser, Hitoshi Murayama, Neil Turok
The Dark Side of the Universe
First OIST Presidential Lecture
Dark Matter is a part of the reason why we exist. There is plenty of evidence that dark matter exists in our own galaxy, other galaxies, and in clusters of galaxies. On the other hand, Dark Energy is speeding up the expansion of the Universe, and it may even lead the Universe to become infinitely fast and come to an end. Dr. Murayama discusses what researchers are doing, and trying to understand what these are.
Quantum Universe
Hintze Lecture at Oxford 2015
Where do we come from? Science is making progress on this age-old question of humankind. The Universe was once much smaller than the size of an atom. Small things mattered in the small Universe, where quantum physics dominated the scene. To understand the way the Universe is today, we have to solve remaining major puzzles. The Higgs boson that was discovered recently is holding our body together from evaporating in a nanosecond. But we still do not know what exactly it is. The mysterious dark matter is holding the galaxy together, and we would not have been born without it. But nobody has seen it directly. And what is the very beginning of the Universe?
Dark Matters
Talk at TEDxTokyo 2010
Promotion video for Coursera MOOC
Nearly 50,000 students signed up for this online course from more than 140 countries
E=mc2
A talk at Lawrence Berkeley National Laboratory on Einstein's famous equation
Mysteries of the Quantum Universe
A public talk at an IMAX theater at Science World in Vancouver

Recent Talks for Physicists
Dark Energy and Dark Matter with Subaru Telescope (video)
a talk at APCTP on August 18, 2020
Two Tales of Baryogenesis (video)
Seminar at UC Davis on January 27, 2020
When a Symmetry Breaks (video)
What is common among a magnet, a flounder, a rack of laundry, your heart on the left of your body, and the Higgs boson? The concept of spontaneous symmetry breaking is ubiquitous among many natural phenomena. I’ll describe the basic concept and its applications. In particular, the original concepts from Anderson, Nambu, Goldstone, and Higgs do not quite work in many systems that include a magnet on your fridge. I generalize the concept so that it is applicable to all known natural phenomena around us.
Colloquium at Cornell on Oct. 19, 2015
What's wrong with Goldstone? (PDF)
Spontaneous Symmetry Breaking is a very universal concept applicable for a wide range of subjects: crystal, superfluid, neutron stars, Higgs boson, magnets, and many others. Yet there is a variety in the spectrum of gapless excitations even when the symmetry breaking patterns are the same. We unified all known examples in a single-line Lagrangian of the low-energy effective theory. In addition, we now have a better understanding of what happens with spacetime symmetries, and predict gaps for certain states exactly based on symmetries alone.
Seminar at CERN on Dec 11, 2013
The Dark Side of the Universe (video)
Asian Europe Physics Summit 2011 in Wroclaw, Poland
Closing Lecture at CERN Summer Institute 2011 (video)
Lectures on the Standard Model at CERN Summer Institute 2009 (video)
Lectures on the Baryon Asymmetry at CERN Academic Training Lecture 2010 (video)

TV Shows
Cosmic Front Next (DVD)

Courses
Physics 7C (Spring 1996)
229A (Fall 1996)
229B (Spring 1997)
129A (Fall 1997)
129B (Spring 1998)
229C (Fall 1998)
229A (Fall 1999)
229B (Spring 2000)
221B (Spring 2001)
221A (Fall 2001)
221B (Spring 2002)
129A (Fall 2002)
221A (Fall 2004)
221B (Spring 2005)
229C (Fall 2005)
221A (Fall 2006)
230A (Spring 2007)
233B (Fall 2007)
232A (Fall 2009)
232B (Spring 2010)
232B (Spring 2011)
232B (Spring 2012)
233B (Fall 2012)
232B (Spring 2013)
232B (Spring 2014)
233A (Spring 2015)
233B (Fall 2015)
232B (Spring 2016)
232B (Spring 2017)
233B (Fall 2018)
232B (Spring 2019)
232B (Spring 2020)
151 (Fall 2020) 
151 (Spring 2021)
How the Tiniest Particles in the Cosmos Saved Us All from Annihilation
Economist article "A problem of cosmic proportions" (2013), an article about SuMIRe project on dark energy, dark matter, testing general relativity, and the origin of Milky Way
New York Times article on one of my papers (2000)
2002 Nishinomiya Yukawa Commemoration Prize (Japanese)
Popular Science, April 2002
Fellow of American Physical Society, 2003
hitoshi at berkeley.edu
  • Phone (510) 486 6659, Campus phone (510) 642-1019
  • Location Bldg. 050-5056E (LBL), 411 Physics South Hall (Campus)