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Nov 11, 2014 Solving the mystery of increased hydrogen chloride in the Northern Hemisphere
Solving the mystery of increased hydrogen chloride in the Northern Hemisphere
University of Toronto physicist Kaley Walker has helped solve the scientific mystery behind the recent increase in ozone-depleting chemicals in the lower stratosphere of the Northern Hemisphere, despite a 25-year old ban on chlorofluorocarbons (CFCs). Employing data from various sources, including the Canadian Space Agency's SCISAT satellite, an international team of scientists used numerical simulations to determine that the recently observed increase in hydrogen chloride (HCl) in the lower stratosphere is due to reduced atmospheric circulation in the Northern Hemisphere. more...
Nov 10, 2014 ‘Spintronics’ discovery could lead to better electronic devices
‘Spintronics’ discovery could lead to better electronic devices
Scientists have discovered that interactions in certain quantum materials could naturally produce the effects needed for ultra-efficient computers and other electronics.The field of spintronics — a short form of spin transport electronics — seeks to understand and power electronic devices using the quantum property known as electron spin rather than an electron’s charge. Spintronics could lead to efficient circuits and electrical devices that do not waste energy through friction and heat. more...
Nov 03, 2014 Cracking mud, freezing dirt, and breaking rocks
Cracking mud, freezing dirt, and breaking rocks
Ordered crack patterns are so common in nature that they are often overlooked. From tile-like formations in ordinary mud, to the vast polygonal networks that stretch across the polar deserts of Earth and Mars, they are typical features in geomorphology. On smaller scales, crack networks add an artistic flourish to Japanese raku pottery and are found on the paintings of the old masters. Cracking even determines the pattern of scales on the snouts of Nile crocodiles. more...
Oct 21, 2014 Spontaneous spin Hall effect of ultracold atoms
Spontaneous spin Hall effect of ultracold atoms
Moving charges get deflected by a magnetic field, an effect which underlies such applications as isotope separation and the quantum Hall effect which fixes the International standard for electrical resistance. more...
May 22, 2014 Ultracold atoms teach us about life on a neutron star
Ultracold atoms teach us about life on a neutron star
Fermi gases in the so-called unitary regime—where the diverging interactions between atoms make their thermodynamics universal—are an excellent test bed for an array of strongly interacting matter systems. Two places to find a unitary Fermi gas are in the crust of a neutron start, and in basement of McLennan. more...
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Events
High Energy Theory Seminar Nov 24, 2014
Luis Lehner: Thermalization, turbulence and tensions: musings from the gravity side 
Noble Seminar Atmospheric Physics Nov 24, 2014
Bill Merryfield: The emerging science of decadal prediction 
High Energy Theory Seminar Nov 25, 2014
Alanne Tommi: Elementary Goldstone Higgs and Dark Matter 
Condensed Matter Physics Seminar Nov 26, 2014
Stephen Julian (Faculty Meeting): tba 
CQIQC Quantum Optics Seminar Nov 27, 2014
Tim Schröder: Spin qubits in diamond nanocavities: Towards spin-photon interfaces 
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