Seminars 2020/2021
9th December 2020
Seminar Speaker: |
Mareki Honma |
Venue: |
Online via Zoom https://astron.zoom.us/j/88545312932 (Meeting ID: 885 4531 2932) Also streamed in real time via YouTube https://www.youtube.com/watch?v=QfTzWtxU8ZI&feature=youtu.be |
Date and Time: |
9th December 2020, 9am (Irish Time) |
Seminar Title: | The sharpest view of the Radio Universe |
Abstract: |
7th December 2020
Seminar Speaker: | Dr. Jukka Kiukas |
Venue: | Online via MS Teams https://teams.microsoft.com/l/meetup-join/19%3ameeting_MmY0M2ZjYWYtMzc2MS00YTYwLTkxMjUtMDY2OTAzMDk2NjU2%40thread.v2/0?context=%7b%22Tid%22%3a%2246fe5ca5-866f-4e42-92e9-ed8786245545%22%2c%22Oid%22%3a%22a1fc07ee-e1f8-4e7c-b82b-0e9f830a651d%22%7d |
Date and Time: | 7th December 2020, 4pm |
Seminar Title: | Joint measurements and quantum noise |
Abstract: In quantum theory, some physical quantities are incompatible, i.e. cannot be simultaneously (jointly) measured with arbitrary precision. While this is traditionally formalised using the well-known Heisenberg Uncertainty Principle, a related approach focuses on how incompatible measurements turn into jointly measurable ones due to “imprecision” induced by random noise. This is motivated by current applications to e.g. quantum computing, where a “quantum processor” is typically subjected to noise from its surroundings. Incompatible measurements are crucial for various quantum information processing tasks, and consequently the study of their “robustness” against noise is an active field of research. In this talk I will first introduce the standard formulation of joint measurability in quantum information theory, and then demonstrate how incompatibility is affected by noise in simple models motivated by physics. |
30th November 2020
Seminar Speaker: | Dr. John Cuffe |
Venue: | Online via MS Teams https://teams.microsoft.com/l/meetup-join/19%3ameeting_ZjNmMTJlOWYtNDM5Mi00NmE4LWE5ZjAtNTU5YmQ3NTAyYmJh%40thread.v2/0?context=%7b%22Tid%22%3a%2246fe5ca5-866f-4e42-92e9-ed8786245545%22%2c%22Oid%22%3a%22a1fc07ee-e1f8-4e7c-b82b-0e9f830a651d%22%7d |
Date and Time: | 30th November 2020, 4pm |
Seminar Title: | Understanding Nanoscale Thermal Transport experimentally through Phonon-Photon Interactions |
Abstract: The understanding and manipulation of phonons in nanostructures is a topic of ever-increasing importance, as heat dissipation and thermal management are critical issues for nanoelectronic and nanophotonic devices. In particular, knowledge of the mean free path distribution of heat-carrying phonons is key to understanding phonon-mediated thermal transport. In this talk, I will review the recent advances in thermal characterization and phonon engineering that have drastically increased the understanding of heat transport and demonstrated efficient ways to control heat propagation in nanomaterials. I will summarize recent device-relevant methodologies of phonon engineering in semiconductor nanostructures and 2D materials. Finally, I will review recent advances in thermal characterization techniques, and discuss their main challenges and limitations. One of the primary uncertainties in the experimentally-challenging area of nanoscale thermal transport is accurately fitting your thermal model to experimental data. Can the powerful tool of Machine Learning overtake the ubiquitous ‘least square fitting’ to better predict real-world values for thermal conductivity, heat capacity, and above all, interface thermal conductance? |
9th November 2020
Seminar Speaker: |
Dr. Calum Ross |
Venue: | |
Date and Time: |
9th November 2020, 4pm |
Seminar Title: | Mathematical Models of Topological Solitons |
Abstract: |
19th October 2020
Seminar Speaker: |
Kenzie Nimmo |
Venue: |
Online via Zoom |
Date and Time: |
19th October 2020, 3pm (Irish Time) |
Seminar Title: | Pin-pointing the positions of repeating Fast Radio Bursts with the European VLBI Network |
Abstract:
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