COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Theoretical Physics Colloquium > Local measurement schemes for quantum field theory in curved spacetimes

## Local measurement schemes for quantum field theory in curved spacetimesAdd to your list(s) Download to your calendar using vCal - Chris Fewster, York
- Wednesday 31 October 2018, 14:15-15:15
- MR2, Centre for Mathematical Sciences.
If you have a question about this talk, please contact Francesca Chadha-Day. Consider an experiment in which a probe is coupled to a quantum field in a bounded spacetime region, and the probe is subsequently measured. An obvious question is how the measurement of the probe can be interpreted as an observation of the quantum field, but, surprisingly, rather little work has been done to address it. In quantum mechanics there is a well-developed field of quantum measurement theory, but this is rarely discussed in the context of quantum fields and still less in curved spacetimes. This talk will describe how the probe measurement can be interpreted as an observable with a defined localisation, and will discuss a number of related issues, including how a post-selected state can be defined following a selective measurement of the probe. The general formalism is illustrated with a specific model. (Joint work with Rainer Verch [Leipzig] – arXiv:1810.06512). This talk is part of the Theoretical Physics Colloquium series. ## This talk is included in these lists:- All CMS events
- All Talks (aka the CURE list)
- CMS Events
- Cosmology lists
- Cosmology, Astrophysics and General Relativity
- DAMTP info aggregator
- HEP web page aggregator
- Kavli Institute for Cosmology Talk Lists
- MR2, Centre for Mathematical Sciences
- Priscilla
- Theoretical Physics Colloquium
- bld31
Note that ex-directory lists are not shown. |
## Other listsCambridge Society for Economic Pluralism Cambridge and Anglian Materials Society meetings Global Student Education Forum (GSEF)## Other talksInsights into the secretion machine of virulence factors in apicomplexan parasites Epigenetics and schistosome development and infection success SciBarHealth - Arthritis, Bones & Joints Psychedelic birth: bodies, boundaries and consciousness in the 1970s The tmf-based Adams spectral sequence for Z Oppositely Charged Polyelectrolyte/Surfactant Mixtures at the Air/Water Interface: The Dominance of Non-equilibrium Effects |