CV: Research Fellow

 


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Candidate Profile
 Date Submitted:08-07-2012
 Last Modified:09-07-2012 (09:39)
Job information
 Current job:Research Fellow
 Employment Term:Temp/Contract
 Job location:Anywhere
 Date available:immediately
 Industry:
 KeywordsMSc. Physics, Astrophysics, Mathematics, Acoustics, Vibrations, Programmer
CV
PROFILE
 
Date of birth: 23-05-1985 (Lisboa, Portugal)
 
 
EDUCATION
 
. Integrated Master (MSc) in Physics Engineering
Instituto Superior Técnico, Lisboa, Portugal 2011
Final mark (second cycle): 16/20
 
Thesis: Acoustic Black Holes and Superresonant Mechanisms
Supervisor: Vitor Cardoso
Thesis mark: 19/20
Thesis abstract:
In this work we study an analogue model of gravity, referred to as acoustic black hole, which is based on the propagation of sound waves in supersonic fluids. We show that, considering certain constraints, there is a mathematical correspondence between fluid dynamics and a general relativistic lorentzian manifold.
We extend the usual analogy of the rotating black hole to the case of a fluid with non-constant density.
We study the geodesy of the motion of massless scalar fields around the considered analogue space-time, and find the absorption cross-section of the acoustic event horizon in the high frequency limit. We show the existence of superradiance in these analogues, and compute numerically the reflected amplitude of the scatter of a monochromatic wave. We compute numerically the absorption cross-section, finding an excellent agreement with the analytical result in the high frequency limit. Finally, we argue that it may be difficult to implement a fission-like process in the laboratory.
 
. Università degli Studi di Padova, Padova, Italy 2008-2009
ERASMUS program
 
COMPLEMENTARY EDUCATION / OTHER EDUCATION
 
. Course on Digital Photography (ESN-Padova) 2009
 
. Centro Linguistico di Ateneo - Università degli Studi di Padova 2008-2009
Italian course level A1
 
. Course on Basic Life Support (Nebm/IST) 2007
 
. EF Education First Language Courses 1999, 2000 and 2001
Frequented summer schools of english language in England, in the cities of Dauntsey, Brighton and Torquay
 
. Alliance Française 1996 and 1997
Basic French course
 
 
 
CONFERENCES ATTENDED / CONFERENCE PRESENTATIONS
 
. Planck 2011, Instituto Superior Técnico, Lisboa, Portugal May/June 2011
 
. Workshop and School on Higher Gauge Theory, TQFT and Quantum Gravity, Instituto Superior Técnico,
Lisboa, Portugal February 2011
 
. Black Hole Workshop III, Universidade do Minho, Braga, Portugal December 2010
Presented a lecture on “Acoustic Black Holes And Superradiant Instabilities”
 
. ICPS 2010 - International Conference of Physics Students, Graz, Austria August 2010
Presented a lecture on “Acoustic Black Holes And Superresonant Instabilities”
 
. Black Hole Workshop II, Instituto Superior Técnico, Lisboa, Portugal December 2009
 
. PASC (Particle-ph, Astro-ph and Cosmology) Winter School, Sesimbra, Portugal December 2009
 
. PASC (Particle-ph, Astro-ph and Cosmology) Winter School, Sesimbra, Portugal December 2007
 
 
LIST OF PUBLICATIONS
 
. On the dynamical behaviour of worn guitar strings, Miguel Marques, Octávio Inácio, Vincent Debut and José Antunes, to appear on the proceedings of the 19th International Congress on Sound and Vibration, 2012
. Instability of Reissner-Nordstrom black holes in de Sitter backgrounds, Vitor Cardoso, Madalena Lemos and Miguel Marques, Physical Review D 80, 127502 (2009)
 
 
WORKING POSITIONS
 
. Grant for Scientific Initiation, FCT-Portugal, project - PTDC/FIS/103306/2008 “Dynamical analysis and improvements on the Portuguese guitar strings and string-body interaction”, with José Antunes (work currently in progress) 2011-2012
Summary: In the context of this grant, I’ve developed a mathematical model for the dynamical behaviour of an archtop guitar with twelve strings (six pairs), wich are affected by the guitar frets, locally losing or gaining mass, and developed Matlab codes to obtain the “perturbed” normal modes of both string and
body, and for dynamical simulations on the time-domain. This work is currently in progress, and one publication in a peer-review journal is expected.
 
. Grant for Scientific Initiation, FCT-Portugal, project - PDTC/FIS/64175/2006 “Gravitational waves: emission and detection”, with Vitor Cardoso 2009-2010
Summary: In the context of this grant, I’ve developed most of the work which is part of my master thesis. I’ve searched for superradiant instabilities in acoustic analogies of rotating black holes, and developed Mathematica and Fortran codes to compute scattering amplitudes of a massless scalar field, absorption
cross-sections and the numerical integration of geodesic paths. I’ve also colaborated in a research were it was found an analytical prove of the existance of instabilities in charged black holes, in a de-Sitter background, for dimensions larger than 6.
 
 
 
INFORMATIC SKILLS
 
. Programming
JAVA, Fortran 95, Mathematica, Matlab, Assembly
. Text Processing
LaTeX, Pages, Word
. Data Processing
Numbers, Origin, Excel
. Presentation Software
Keynote, PowerPoint
. Operating Systems
Mac OS, Microsoft Windows OS, Linux Ubuntu
 
 
HOBBIES, SPORTS AND OTHER INTERESTS
 
Science Divulgation:
. Presented a workshop on stellar evolution (aimed to the general public), in the context of activities developed by NFIST (Physics Students Association Of The Instituto Superior Técnico) for the Astronomy International year 2009.
. Collaborated (during the years between 2005-2008) with NFIST on the annual activity labeled “Physics Week”, which consists in presenting the general public and the high school students with many dozens of basic physics experiments.
. Collaborated (during the years between 2005-2008) with NFIST on many planetarium public sessions.
. Collaborated (during the years between 2005-2008) with NFIST on many astronomical observations public sessions.
 
Sports:
. Karate, Federated on the Portuguese Karate Federation and affiliated to the Japonese Karate-do Hayashi-Ha Shito-Ryu Kay Association 2000-2008, 2010-...
. Kobudo, Affiliated to the Okinawa Kobudo Association 2002-2008, 2010-...
. Swimming 1991-2003
. Basketball, Federated on the Portuguese Basketball Federation 1996-1998
. Judo, Federated on the Portuguese Judo Federation 1990-1995
 
Musical Instruments:
. Classical Guitar starting year 1999
Has given classical guitar lessons in 2006-2008 and 2010-...
Has experience of playing live
. Electric Guitar starting year 2001
Has experience of playing live
. Portuguese Guitar starting year 2007
Has experience of playing live
. Saxophone starting year 2009
 
 
Other activities and hobbies:
. Moderator of the online “reuse” network Freecycle in Lisboa - www.freecycle.org
. Amateur digital photography, with personal dSLR camera.

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