Physics
Showing 21-40 of 70 Results
-
Leo Hollberg
Professor (Research) of Physics and of Geophysics
BioHow can we make optimal use of quantum systems (atoms, lasers, and electronics) to test fundamental physics principles, enable precision measurements of space-time and when feasible, develop useful devices, sensors, and instruments?
Professor Hollberg’s research objectives include high precision tests of fundamental physics as well as applications of laser physics and technology. This experimental program in laser/atomic physics focuses on high-resolution spectroscopy of laser-cooled and -trapped atoms, non-linear optical coherence effects in atoms, optical frequency combs, optical/microwave atomic clocks, and high sensitivity trace gas detection. Frequently this involves the study of laser noise and methods to circumvent measurement limitations, up to, and beyond, quantum limited optical detection. Technologies and tools utilized include frequency-stabilized lasers and chip-scale atomic devices. Based in the Hansen Experimental Physics Laboratory (HEPL), this research program has strong, synergistic, collaborative connections to the Stanford Center on Position Navigation and Time (SCPNT). Research directions are inspired by experience that deeper understanding of fundamental science is critical and vital in addressing real-world problems, for example in the environment, energy, and navigation. Amazing new technologies and devices enable experiments that test fundamental principles with high precision and sometimes lead to the development of better instruments and sensors. Ultrasensitive optical detection of atoms, monitoring of trace gases, isotopes, and chemicals can impact many fields. Results from well-designed experiments teach us about the “realities” of nature, guide and inform, occasionally produce new discoveries, frequently surprise, and almost always generate new questions and perspectives. -
Kent Irwin
Director, Hansen Experimental Physics Laboratory (HEPL), Professor of Physics, of Particle Physics and Astrophysics and of Photon Science
BioIrwin Group web page:
https://irwinlab.stanford.edu/ -
Shamit Kachru
Professor of Physics and Director, Stanford Institute for Theoretical Physics, Emeritus
Current Research and Scholarly InterestsMy current research is focused in three directions:
— Mathematical aspects of string theory (with a focus on BPS state counts, black holes, and moonshine)
— Quantum field theory approaches to condensed matter physics (with a focus on physics of non-Fermi liquids)
— Theoretical biology, with a focus on evolution and ecology -
Renata Kallosh
Stanford W. Ascherman, MD Professor, Emerita
BioWhat is the mathematical structure of supergravity/string theory and its relation to cosmology?
Professor Kallosh works on the general structure of supergravity and string theory and their applications to cosmology. Her main interests are related to the models early universe inflation and dark energy in string theory. She develops string theory models explaining the origin of the universe and its current acceleration. With her collaborators, she has recently constructed de Sitter supergravity, which is most suitable for studies of inflation and dark energy and spontaneously broken supersymmetry.
She is analyzing possible consequences of the expected new data from the Large Hadron Collider (LHC) and the results of current and future cosmological observations, including Planck satellite CMB data. These results may affect the relationship between superstring theory and supergravity, and the real world. Professor Kallosh works, in particular, on future tests of string theory by CMB data and effective supergravity models with flexible amplitude of gravitational waves produced during inflation. -
Aharon Kapitulnik
Theodore and Sydney Rosenberg Professor of Applied Physics and Professor of Physics
BioAharon Kapitulnik is the Theodore and Sydney Rosenberg Professor in Applied Physics at the Departments of Applied Physics and Physics at Stanford University. His research focuses on experimental condensed matter physics, while opportunistically, also apply his methods to tabletop experimental studies of fundamental phenomena in physics. His recent studies cover a broad spectrum of phenomena associated with the behavior of correlated and disordered electron systems, particularly in reduced dimensions, and the development of effective instrumentation to detect subtle signatures of physical phenomena.
Among other recognitions, his activities earned him the Alfred P. Sloan Fellowship (1986-90), a Presidential Young Investigator Award (1987-92), a Sackler Scholar at Tel-Aviv University (2006), the Heike Kamerlingh Onnes Prize for Superconductivity Experiment (2009), a RTRA (Le Triangle de la Physique) Senior Chair (2010), and the Oliver Buckley Condensed Matter Prize of the American Physical Society (2015). Aharon Kapitulnik is a Fellow of the American Physical Society, a Fellow of the American Academy of Arts and Sciences, a Fellow of the American Association for the Advancement of Science and a member of the National Academy of Sciences. Kapitulnik holds a Ph.D. in Physics from Tel-Aviv University (1984). -
Steven Kivelson
Prabhu Goel Family Professor
Current Research and Scholarly InterestsPast Graduate Students:
Assa Auerbach - Professor of Physics, Technion University
Weikang Wu - deceased.
Shoucheng Zhang (final year) - deceased.
Shivaji Sondhi - Wykham Professor of Physics, Oxford University
Markku Salkola - Facebook, Menlo Park
Vadim Oganesyan - Professor of Physics CUNY
Kyrill Shtengle - Professor of Physics, UC Riverside
Oron Zachar
Zohar Nussinov - Professor of Physics, Washington University
Erica W. Carlson - Professor of Physics, Purdue University
Edward Sleva
John Robertson - Citadel, Austin
Wei-Feng Tsai
Ian Bindloss
Paul Oreto - Head of Machine Learning at Cantor Fitzgerald, New York
Erez Berg - Professor of Physics, Weizmann Institute
Hong Yao - Professor of Physics, Tsinghua University
Li Liu
George Karakonstantakis
Sam Lederer
Laimei Nie - Assistant Professor of Physics, Purdue University
Ilya Esterlis - Assistant Professor, University of Wisconsin, Madison
John Dodaro
Chao Wang - Citadel LLC, New York
Yue Yu - Post Doctoral Fellow, University of Wisconsin, Milwaukee
Yuval Gannot - Google,
Past Post Docs:
Douglas Stone - Professor of Physics, Yale University
Gergeley Zimanyi - Professor of Physics, UC Davis
Dror Orgad - Professor of Physics, Tel Aviv University
Hae-Young Kee - Professor of Physics, University of Toronto
Oskar Vafek - Professor of Physics, University of Florida
Eun-Ah Kim - Professor of Physics, Cornell University
Srinivas Raghu - Professor of Physics, Stanford University
Maisam Barkeshli - Professor of Physics, University of Maryland
Pavan Hosur - Professor of Physics, University of Houston
Yi Zhang - Professor of Physics, Tsinghua University
Abulhassan Vaezi - Professor of Physics, Sharifi University
Jingyuan Chen - Assistant Professor of Physics, Tsinghua University
Yoni Schattner - Research Scientist, Quantum Computing at the Amazon Center for
Quantum Computing at Caltech, Pasadena
John Sous - Assistant Professor of Chemistry, UCSD
Past Undergraduate Research Assistants:
Kevin S. Wang - Graduate student, Princeton University
Jeffrey Chang - Graduate student, Harvard University
Vijay Nathan Josephs - Undergraduate, Stanford University
Unofficial Past Students and Post Docs:
(i.e. where I believe I played the corresponding mentoring role, but the connection
was unofficial - a shameless attempt to claim partial credit):
Shoucheng Zhang - (did his final year of PhD work, the part in CMT, under my direction and
worked with me extensively while a post doc)
Jainendra Jain - (did the final portion of his PhD work, the part relevant to the quantum
Hall effect, under my guidance and worked with me extensively while a post doc)
Daniel Rokhsar - (No official connection at all, but did significant portion of both his
graduate and post-doctoral research in collaboration with me.)
Akash Maharaj - (was a student of Srinivas Raghu with whom he worked extensively, but
he also did a significant portion of his graduate research in collaboration with me.) -
Chao-Lin Kuo
Professor of Physics and of Particle Physics and Astrophysics
Current Research and Scholarly Interests1. Searching/measuring primordial gravitational waves in the CMB (Cosmic Microwave Background) through experiments at the South Pole (BICEP and SPT), high plateaus in Tibet (AliCPT) and Atacama (Simons Observatory), as well as in space (LiteBIRD).
2. Development and applications of superconducting detector and readout systems in astrophysics, cosmology, and other areas.
3. Novel detector concepts for axion searches (https://youtu.be/UBscQSFzpLE) -
Robert Laughlin
Anne T. and Robert M. Bass Professor in the School of Humanities and Sciences
BioProfessor Laughlin is a theorist with interests ranging from hard-core engineering to cosmology. He is an expert in semiconductors (Nobel Prize 1998) and has also worked on plasma and nuclear physics issues related to fusion and nuclear-pumped X-ray lasers. His technical work at the moment focuses on “correlated-electron” phenomenology – working backward from experimental properties of materials to infer the presence (or not) of new kinds of quantum self-organization. He recently proposed that all Mott insulators – including the notorious doped ones that exhibit high-temperature superconductivity – are plagued by a new kind of subsidiary order called “orbital antiferromagnetism” that is difficult to detect directly. He is also the author of A Different Universe, a lay-accessible book explaining emergent law.
-
Benjamin Lev
Professor of Applied Physics and of Physics
Current Research and Scholarly InterestsLevLab is a joint AMO & CM experimental group that explores the question: Can new classes of states and phases of quantum matter be created far away from equilibrium, and if so, what do we learn? We use our new technique, confocal cavity QED, to both engineer out-of-equilibrium quantum gases and 2D materials and to image and control their new properties.
-
Craig Levin
Professor of Radiology (Molecular Imaging Program at Stanford/Nuclear Medicine) and, by courtesy, of Physics, of Electrical Engineering and of Bioengineering
Current Research and Scholarly InterestsMolecular Imaging Instrumentation
Laboratory
Our research interests involve the development of novel instrumentation and software algorithms for in vivo imaging of cellular and molecular signatures of disease in humans and small laboratory animal subjects. -
Andrei Linde
Humanities and Sciences Professor
BioWhat is the origin and the global structure of the universe?
For a long time, scientists believed that our universe was born in the big bang, as an expanding ball of fire. This scenario dramatically changed during the last 35 years. Now we think that initially the universe was rapidly inflating, being in an unstable energetic vacuum-like state. It became hot only later, when this vacuum-like state decayed. Quantum fluctuations produced during inflation are responsible for galaxy formation. In some places, these quantum fluctuations are so large that they can produce new rapidly expanding parts of the universe. This process makes the universe immortal and transforms it into a multiverse, a huge fractal consisting of many exponentially large parts with different laws of low-energy physics operating in each of them.
Professor Linde is one of the authors of inflationary theory and of the theory of an eternal inflationary multiverse. His work emphasizes the cosmological implications of string theory and supergravity.
Current areas of focus:
- Construction of realistic models of inflation based on supergravity and string theory
- Investigation of conceptual issues related to the theory of inflationary multiverse -
John Lipa
Professor (Research) of Physics, Emeritus
BioJohn Lipa received his PhD at the University of Western Austrailia. He has acted as an assistant professor, senior research associate, and professor at Stanford University. Research interests include testing of various aspects of the renormalization group theory of cooperative phase transitions.
-
Raghu Mahajan
Senior Research Scientist
Current Research and Scholarly InterestsMy research interests are wide-ranging:
1) In the context of gravity, how does spacetime emerge from its dual quantum system? How does the dual quantum system encode the answers to questions that involve local physics in semi-classical gravity? How do you avoid the "firewall" paradox in the context of black-hole evaporation?
2) How do you calculate electrical and heat currents in strongly-coupled many-body systems? How do you explain the linear-in-temperature resistivity in high-temperature cuprates?
3) Use tensor network methods to study electrical and heat transport and also the real-time dynamics of systems out of thermal equilibrium.