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Physics & Astronomy Colloquium - Prof. Gabriel Landi, University of Rochester

Title: 'Quantum trajectories and stochastic excursions of thermal machines'

10/24/2025
2:15 pm – 3:15 pm
Wilder 104 and Zoom
Intended Audience(s): Public
Categories: Lectures & Seminars, School of Arts and Sciences

Abstract: This talk will discuss the recent progress in describing the thermodynamics of quantum trajectories. The problem will be motivated with a discussion of cooling down a superconducting qubit using an absorption refrigerator. We provide an overview of how to use the toolbox of quantum instruments to provide an extremely general formulation of the problem. And we specialize it to the important case of quantum jumps. In both cases, we introduce the basic ideas behind full counting statistics, which is used to connect quantum dynamics to experimental measurement outcomes. Finally, we introduce the notion of stochastic excursions, and how it can be used to understand different mechanisms that contribute to current fluctuations. These concepts will be illustrated with examples from superconducting qubits, transport across quantum dots and atomic masers.

Informal discussion with coffee, tea, and snacks to follow.

Hosted by Professor Lorenza Viola

Please click the link below to join the webinar:

https://dartmouth.zoom.us/j/91888702369?pwd=aUlaVEFYNGZHNlZWL0R3cEVWQXg4UT09

For more information, contact:
Rowan Kowalsky
rowan.m.kowalsky@dartmouth.edu
Permanent URL to this event: https://physics.dartmouth.edu/events/event?event=79077

Events are free and open to the public unless otherwise noted.