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PERIMETER INSTITUTE RECORDED SEMINAR ARCHIVE

Displaying all lectures given by: Ben Schumacher


Almost quantum theory
Speaker(s): Ben Schumacher
Abstract: Modal quantum theory (MQT) is a discrete model that is similar in structure to ordinary quantum theory, but based on a finite field instead of complex amplitudes. Its interpretation involves only the "modal" concepts of possibility and impossibility rather than quantitative probabi... read more
Date: 10/05/2011 - 9:30 am

Quantum Theory (PHYS 605) - Lecture 15
Speaker(s): Ben Schumacher
Abstract:
Date: 01/10/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 14
Speaker(s): Ben Schumacher
Abstract:
Date: 30/09/2010 - 9:00 am

Putting quantum information into undergraduate quantum mechanics
Speaker(s): Ben Schumacher
Abstract: Over the last twenty years, quantum information and quantum computing have profoundly shaped our thinking about the basic concepts of quantum physics. But can these insights also shape the way we /teach/ quantum mechanics to undergraduate physics students? A recent adventure in textbook-writing sugg... read more
Date: 29/09/2010 - 4:00 pm

Quantum Theory (PHYS 605) - Lecture 13
Speaker(s): Ben Schumacher
Abstract:
Date: 29/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 12
Speaker(s): Ben Schumacher
Abstract:
Date: 28/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 11
Speaker(s): Ben Schumacher
Abstract:
Date: 27/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 10
Speaker(s): Ben Schumacher
Abstract:
Date: 24/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 9
Speaker(s): Ben Schumacher
Abstract:
Date: 23/09/2010 - 9:00 am

Modal quantum theory
Speaker(s): Ben Schumacher
Abstract: In this talk we will explore a "toy model" of quantum theory that is similar to actual quantum theory, but uses scalars drawn from a finite field. The set of possible states of a system is discrete and finite. Our theory does not have a quantitative notion of probability, but only ... read more
Date: 22/09/2010 - 2:00 pm
Series: Colloquium

Quantum Theory (PHYS 605) - Lecture 8
Speaker(s): Ben Schumacher
Abstract:
Date: 22/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 7
Speaker(s): Ben Schumacher
Abstract:
Date: 21/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 6
Speaker(s): Ben Schumacher
Abstract:
Date: 20/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 5
Speaker(s): Ben Schumacher
Abstract:
Date: 17/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 4
Speaker(s): Ben Schumacher
Abstract:
Date: 16/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 3
Speaker(s): Ben Schumacher
Abstract:
Date: 15/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 2
Speaker(s): Ben Schumacher
Abstract:
Date: 14/09/2010 - 9:00 am

Quantum Theory (PHYS 605) - Lecture 1
Speaker(s): Ben Schumacher
Abstract:
Date: 13/09/2010 - 9:00 am

Bell's theorem and monogamy
Speaker(s): Ben Schumacher
Abstract: Quantum entanglement has two remarkable properties. First, according to Bell's theorem, the statistical correlations between entangled quantum systems are inconsistent with any theory of local hidden variables. Second, entanglement is monogamous -- that is, to the degree that A and B are entangled w... read more
Date: 03/12/2008 - 11:00 am

The Physics of Impossible Things
Speaker(s): Ben Schumacher
Abstract: Some things can happen in our Universe, and others cannot. The laws of physics establish the boundary between possibility and impossibility. Physicists naturally spend most of their time thinking about the possible. In this lecture, however, we will make a brief reconnaissance across the frontier to... read more
Date: 03/12/2008 - 7:00 am

Interaction and information flow between quantum systems (Part 1B)
Speaker(s): Ben Schumacher
Abstract:
Date: 30/08/2007 - 4:30 pm

Interaction and information flow between quantum systems (Part 1A)
Speaker(s): Ben Schumacher
Abstract:
Date: 30/08/2007 - 3:15 pm

Local quantum dynamics and information flow
Speaker(s): Ben Schumacher
Abstract: In order to predict the future state of a quantum system, we generally do not need to know the past state of the entire universe, but only the state of a finite neighborhood of the system. This locality is best expressed as a restriction on how information "flows" between systems. In this talk I wil... read more
Date: 05/07/2006 - 4:00 pm
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