Spring 2018

Lunch Talk: Peter Maurer

Speaker(s): 
Peter Maurer
Dates: 
Friday, February 9, 2018 - 12:00pm to 1:00pm

Quantum optics has had a profound impact on precision measurements, and recently enabled probing various physical quantities, such as magnetic fields and temperature, with nanoscale spatial resolution. Such advancements in ‘quantum sensing’ have brought the elusive dream of performing nuclear magnetic resonance spectroscopy (NMR) on individual biomolecules closer to reality. In my talk, I will discuss the development and application of novel quantum metrological technologies to study biological systems at a single-molecule level. I will start with a general introduction...

Quantum sensing in a new single-molecule regime

Speaker(s): 
Peter Maurer
Dates: 
Thursday, February 8, 2018 - 4:00pm to 5:00pm

Quantum optics has had a profound impact on precision measurements, and recently enabled probing various physical quantities, such as magnetic fields and temperature, with nanoscale spatial resolution. Such advancements in ‘quantum sensing’ have brought the elusive dream of performing nuclear magnetic resonance spectroscopy (NMR) on individual biomolecules closer to reality. In my talk, I will discuss the development and application of novel quantum metrological technologies to study biological systems at a single-molecule level. I will start with a general introduction...

Can Evolutionary Dynamics Be Understood Quantitatively?

Speaker(s): 
Daniel S. Fisher
Dates: 
Monday, February 5, 2018 - 4:00pm to 5:00pm

The basic laws of evolution have been known for more than a century and there is overwhelming evidence for the facts of evolution. Yet little is understood quantitatively about the dynamical  processes that drive evolution: by physicists' standards the theory of evolution is far from fully-fledged. Huge advances in DNA sequencing technology and laboratory experiments have enabled direct observations of evolution in action and, together with theoretical developments, opened up great opportunities for dramatically advancing our understanding. This talk will focus on framing...

Andreev and Majorana Weyl crossings in multi-terminal Josephson junctions

Speaker(s): 
Manuel Houzet
Dates: 
Thursday, March 29, 2018 - 4:00pm

We analyze the Andreev spectrum in a four-terminal Josephson junction between topological superconductors. We find that a topologically protected crossing in the space of three superconducting phase differences can occur between the two Andreev bound states with lower energy. We discuss the possible detection of this crossing through the transconductance quantization, in units of 2e^2/h, between two voltage-biased terminals. Our prediction provides another example of topology in multi-terminal Josephson junctions.

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