HIP NEWS January 16th 2017
DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
Monday 16 January 2017 at 14.15 in E206
Matthew Lippert (Long Island University) Note new time and place!
Shining Light on Quantum Gravity with Pulsar-Black Hole Binaries
Abstract: Pulsars are some of the most accurate clocks found in nature, while black holes offer a unique arena for the study of quantum gravity. As such, pulsar-black hole (PSR-BH) binaries provide ideal astrophysical systems for detecting effects of quantum gravity. With the success of aLIGO and the advent of instruments like the SKA and eLISA, the prospects for discovery of such PSR-BH binaries are very promising. We argue that PSR-BH binaries can serve as ready-made testing grounds for proposed resolutions to the black hole information paradox. We propose using timing signals from a pulsar beam passing through the region near a BH event horizon as a probe of quantum gravitational effects. In particular, we demonstrate that fluctuations of the geometry outside a black hole lead to an increase in the measured root-mean-square deviation of arrival times of pulsar pulses traveling near the horizon. This allows for a clear observational test of the nonviolent nonlocality proposal for black hole information escape. For a series of pulses traversing the near-horizon region, this model predicts an rms in pulse arrival times of ~30 mus for a 3 M_sun black hole, ~ 0.3 ms for a 30 M_sun black hole, and ~ 40 s for Sgr A*. The current precision of pulse time of arrival measurements is sufficient to discern these rms fluctuations. This work is intended to motivate observational searches for PSR-BH systems as a means of testing models of quantum gravity.
Annual reporting on research
Remember to update your research activities on TUHAT database. Pay attention to information which is not centrally collected, especially international mobility and other publications than refereed journal articles. The library collects information on refereed journal articles and it will be checked in preparing the HIP Annual Report.
Reporting is requested by January 31, 2017.
More instructions in Flamma https://flamma.helsinki.fi/en/reporting
In January 2017, offered support and TUHATin ORCIDin use
More instructions in Flamma https://flamma.helsinki.fi/en/HY360190
Visibility of Research and Management of Research Data
The library gives advice on archiving publications and is in charge of reviewing them.
Tuhat-research information system
Bibliometrics, reference analysis and altmetrics
Open Access -publishing and self-archiving
Research Data Management
More information in Flamma https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_pageLabel=pp_list&placeId=HY296998
International training for new staff
This is your Kumpula Campus – induction for new staff
Finnish Working Culture
Emil Aaltosen säätiö. Vuorineuvos Emil Aaltosen vuonna 1937 perustama Emil Aaltosen Säätiö tukee suomenkielisten tutkijoiden luovaa tieteellistä tutkimustyötä myöntämällä apurahoja.
Apurahojen hakuaika on vuosittain 15.1. – 15.2.2017. Lisätietoja: http://www.emilaaltonen.fi/
University of Helsinki Funds.
The application time for the year 2017 is 24.1.2017 – 9.2.2017.
More information https://www.helsinki.fi/en/studying/during-your-studies/apply-for-a-grant
P. Dendooven 7.2. – 7.4.
M. Rinaldi 23.1. – 27.1. (FM)
T. Takahashi 28.1. – 4.2. (KE)