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Meet a Scientist

What makes a scientist tick? How did they get started? What advice do they offer today’s students?

Find out by viewing these short video interviews with leading researchers from around the world. They explain their interest in science, from young school-age days to the present, and share insights with those who may want to pursue their own life in science.  In addition to hearing personal comments, you can link to some related PI Public Lectures and also read about associated research areas at PI.


Prof. Alessandra Buonanno

University of Maryland

Research Area: Cosmology

Research Interests: Cosmology of the early universe; theory and detection of gravitational waves, e.g. from the violent last stages of inspiral as two orbiting black holes coalesce. Using cutting edge quantum physics in designing practical, ultra sensitive gravitational wave detectors.


Chanda Prescod-Weinstein

Perimeter Institute

Research Area: Cosmology, Quantum Gravity

Research Interests: Cosmology and cosmological implications of quantum gravity. Observable effects in cosmology help to identify the limits of general relativity, which could potentially be surpassed by modified theories of gravity and/or quantum gravity.


Dr. Jean-Luc Lehners

Princeton University

Research Area: Cosmology, Superstring Theory

Research Interests: What, exactly, happened around the time of the Big Bang? Exploring new models inspired by superstring theory and supergravity, e.g. ones in which we live on “branes” that collide with a “big bang”. Satellite experiments to test such models.


Prof. Neal Weiner

New York University

Research Area: Particle Physics, Cosmology

Research Interests: Physics beyond the standard model: theories of elementary particles with extra space dimensions (large, small, warped and flat); supersymmetry; grand unification; dark matter; inflation and dark energy; as well as relationships between the different subjects.


Dr. Olivier Doré

CITA University of Toronto

Research Area: Cosmology

Research Interests: The origin and evolution of the largest observable structures in the universe (much larger than entire galaxies); understanding why the expansion of the universe is accelerating. Observational techniques: cosmic microwave background, gravitational lensing and gravity waves.


Prof. Neta A. Bahcall

Princeton University

Research Area: Cosmology

Research Interests: Observational cosmology, with particular focus on the formation and evolution of large scale structures in our universe like clusters of galaxies as large as 500 million light years. “Weighing” the universe, and mapping out the mysterious dark matter it contains.


Prof. Alexander Vilenkin

Tufts University

Research Area: Cosmology

Research Interests: Theoretical models for cosmology – from standard to exotic (e.g. cosmic strings and monopoles). “Quantum creation” of multiple universes out of nothing; eternal inflation and the anthropic selection of a world that would ultimately become hospitable to life.


Prof. Andreas Albrecht

UC Davis

Research Area: Cosmology

Research Interests: Implications of high-energy elementary particle physics for physics of the early universe and its evolution (Big Bang, creation of matter, formation of galaxies, etc). And vice-versa: implications of observable cosmological data for fundamental physics.


Dr. Bernd Schroers

Heriot-Watt University

Research Area: Quantum Gravity

Research Interests: Mathematical aspects of modern theories of elementary particles and gravitation. Replacing the notion of particles with fundamental abstract fields (magnetic monopoles, vortices and Skyrmions) in an attempt to approach a formulation for quantum gravity.


Prof. Chris Fuchs

Perimeter Institute

Research Area: Quantum Foundations, Quantum Information

Research Interests: Applications of quantum theory to cryptography and computation; understanding in more concrete, physical terms what quantum theory is telling us about the nature of reality. Applications of information theory to better understand the quantum “wave function”.


Prof. Daniel Gottesman

Perimeter Institute

Research Area: Quantum Information

Public Lectures: Quantum Cryptography: A Tale of Secrets Hidden and Revealed Through the Laws of Physics

Research Interests: Applications of the quantum nature of our universe to potential new technologies like quantum cryptography and quantum computation. In particular, theoretical developments such as fault-tolerant quantum codes and protocols for quantum error correction.


Dr. Ghazal Geshnizjani

Perimeter Institute

Research Area: Cosmology

Research Interests: String- and M-theory inspired scenarios for the cosmology of the early universe. Replacing the unphysical Big Bang-like beginning of our universe with bouncing scenarios of accelerated expansion followed by familiar evolution.


Prof. Herman Verlinde

Princeton University

Research Area: Superstring Theory

Research Interests: Many aspects of string theory, ranging from its mathematical structure and various formulations, to possible implications for black holes and cosmology. Using string phenomenology to connect theory with reality, i.e. string mathematics with elementary particle physics.


Prof. Lucien Hardy

Perimeter Institute

Research Area: Quantum Foundations

Research Interests: Applying the lessons learned in quantum information theory to gain a better understanding of quantum mechanics itself. Is quantum theory simply a new type of probability theory? Exploring new directions towards combining quantum theory with gravity.


Dr. Mark Wyman

Perimeter Institute

Research Area: Cosmology

Research Interests: Various models for cosmology and their observable predictions. Studies include models of inflating universes; computer simulations of structure formation using modified laws of gravity; and possible imprints of superstrings on the cosmic microwave background.


Prof. Robert Brandenberger

McGill University

Research Area: Cosmology

Research Interests: Cosmology as a natural meeting ground for fundamental theory (e.g. superstring theory or quantum gravity) and observations. Exploring how seeds laid down in the very early universe developed into the large scale structure we observe in the universe today.


Prof. Sumit R. Das

University of Kentucky

Research Area: Superstring Theory

Research Interests: Mathematical methods in superstring theory with applications to black hole physics (e.g. Hawking radiation) and models of the fundamental forces of nature.


Prof. Artur Ekert

University of Cambridge and National University of Singapore

Research Area: Quantum Information

Public Lecture: Quanta, Ciphers and Computers

Research Interests: Exploring the wonders of the quantum world, especially information processing in quantum systems, including quantum cryptography (guaranteeing perfectly secure communication) and quantum computing (solving certain problems dramatically faster).


Prof. Edward (Rocky) Kolb

University of Chicago

Research Area: Cosmology

Public Lecture: The Quantum and the Cosmos

Research Interests: Cosmology, in particular applying the physics of elementary particles to the extremely hot and violent conditions of the early universe, and exploring deep questions about the big bang, the fate of our universe, and the hope for intelligent life (here or elsewhere).


Prof. Lisa Randall

Harvard University

Research Areas: Particle Physics, Cosmology, Superstring Theory

Research Interests: Particle physics, cosmology, and the study of a wide variety of theoretical models – most notably ones involving extra dimensions of space. Randall works on several of the competing models of string theory in the quest to explain the fabric of the universe.


Sir Anthony Leggett (Nobel Laureate)

University of Illinois, Institute for Quantum Computing at University of Waterloo

Research Area: Quantum Foundations

Public Lecture: The Physics of Information

Research Interests: Condensed matter systems at ultra low-temperature that show purely quantum phenomena – even on big scales (superfluidity, superconductivity, Bose-Einstein condensates); measurements in the quantum world; probing the foundations of quantum theory.


Sir Roger Penrose

University of Oxford

Research Area: Quantum Gravity

Public Lecture: Before the Big Bang

Research Interests: Many aspects of geometry, black holes, novel views on the evolution of the universe (was there something before the Big Bang?), the interplay and unification of general relativity and quantum physics, and science of consciousness.


Prof. Paul Steinhardt

Princeton University

Research Area: Cosmology

Public Lecture: Impossible Crystals

Research Interests: Big Bang cosmology, inflationary growth of the universe, seeds for the formation of galaxies and large-scale structure, dark energy and dark matter, and also “quasicrystals” - a new phase of solid matter with impossible symmetries.


Prof. Frank Wilczek (Nobel Laureate)

Massachusetts Institute of Technology

Research Area: Particle Physics

Public Lectures: Anticipating A New Golden Age, The Origin of Mass and the Feebleness of Gravity

Research Interests: Fundamental interactions between elementary particles, using deep ideas involving mathematical symmetry for restoring unity to the fundamental laws of nature (strong and weak nuclear forces, electromagnetism and gravity).


Prof. Edward Witten

Institute for Advanced Study, Princeton

Research Area: Superstring Theory

Public Lecture: The Quest for Supersymmetry

Research Interests: String theory, the high energy frontier of elementary particle physics, grand unifications into a single framework, mathematical beauty and supersymmetries, and uncovering the quantum structures of space and time.


Prof. Jenann Ismael

University of Sydney

Research Area: Quantum Foundations

Research Interests: The nature of time, probability and quantum mechanics, philosophy of physics and metaphysics, especially issues involving the role of mathematical tools like symmetry in physics, and applying this formal apparatus to the philosophy of mind.


Prof. Anton Zeilinger

University of Vienna

Research Area: Quantum Information

Public Lecture: From Einstein to Quantum Information

Research Interests: Conceptual and experimental foundations of quantum mechanics (matter waves, teleportation, and spooky action at a distance), quantum behaviour of larger objects and perhaps life itself, and using the power of the quantum to process and transmit information.


Prof. John Norton

University of Pittsburgh

Research Area: Quantum Gravity

Research Interests: Philosophy of physics, puzzles about the content and status of foundational principles – the logic of physicists’ basic assumptions, especially with regards to space and time, and the history of science, e.g. exactly how Einstein made his discoveries.


Prof. Gerard Milburn

University of Queensland

Research Area: Quantum Information

Research Interests: Achievable experimental systems in quantum and atomic optics, the effects of measurement and control on quantum systems, quantum technologies for processing information and quantum computation.


Prof. Bill Unruh

University of British Columbia

Research Area: Quantum Gravity

Research Interests: Quantum gravity, quantum processes in the early universe, evaporation of black holes, limits on the measurements made by real detectors (coupled to the environment), and with regards to mathematical problems, studying techniques rather than finding solutions.


Prof. Roderich Tumulka

Rutgers University

Research Area: Quantum Foundations

Research Interests: Removing the mystery from quantum mechanics, the Bohmian perspective – a way of describing the motion of quantum particles, and applying this to spacetime singularities (where gravity becomes infinite) like those inside a black hole.


Prof. Julian Barbour

College Farm and Oxford University

Research Area: Quantum Gravity

Research Interests: Foundations of physics, philosophical understanding of general relativity, change as the fundamental essence of time (the behaviour of clocks emerges from timeless laws in a timeless world), and implications of these ideas for describing a quantum universe.