Vahe Gurzadyan
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Vahagn "Vahe" Gurzadyan ( hy, Վահագն Գուրզադյան; born 21 November 1955) is an Armenian
mathematical physicist Mathematical physics refers to the development of mathematical methods for application to problems in physics. The ''Journal of Mathematical Physics'' defines the field as "the application of mathematics to problems in physics and the developmen ...
and a professor and head of Cosmology Center at
Yerevan Physics Institute The A.I. Alikhanyan National Science Laboratory () is a research institute located in Yerevan, Armenia. It was founded in 1943 as a branch of the Yerevan State University by brothers Abram Alikhanov and Artem Alikhanian. It was often referred to by ...
, Yerevan , Armenia, best known for co-writing "
Concentric circles In geometry, two or more objects are said to be concentric, coaxal, or coaxial when they share the same center or axis. Circles, regular polygons and regular polyhedra, and spheres may be concentric to one another (sharing the same center point ...
in
WMAP The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP and Explorer 80), was a NASA spacecraft operating from 2001 to 2010 which measured temperature differences across the sky in the cosmic mic ...
data may provide evidence of violent pre-Big-Bang activity" paper with his colleague,
Roger Penrose Sir Roger Penrose (born 8 August 1931) is an English mathematician, mathematical physicist, philosopher of science and Nobel Laureate in Physics. He is Emeritus Rouse Ball Professor of Mathematics in the University of Oxford, an emeritus fello ...
, and collaborating on Roger Penrose's recent book ''
Cycles of Time ''Cycles of Time: An Extraordinary New View of the Universe'' is a science book by mathematical physicist Roger Penrose published by The Bodley Head in 2010. The book outlines Penrose's Conformal Cyclic Cosmology (CCC) model, which is an exten ...
''. Gurzadyan was born in
Yerevan Yerevan ( , , hy, Երևան , sometimes spelled Erevan) is the capital and largest city of Armenia and one of the world's List of oldest continuously inhabited cities, oldest continuously inhabited cities. Situated along the Hrazdan River, Y ...
, Armenia (then
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national ...
), graduated
Yerevan State University Yerevan State University (YSU; hy, Երևանի Պետական Համալսարան, ԵՊՀ, ''Yerevani Petakan Hamalsaran''), also simply University of Yerevan, is the oldest continuously operating public university in Armenia. Founded in 1919 ...
(1977), postgraduate student in theoretical physics department, Lebedev Physics Institute, Moscow (1977–1980; 1980 PhD.), DSci in theoretical and mathematical physics (1988). In 1989 he lectured on dynamical systems in four universities in Japan (Tokyo, Kyoto, Hiroshima, Fukui), and subsequently held visiting positions at the University of Sussex (1996–1997) and, since 2001, at
Sapienza University of Rome The Sapienza University of Rome ( it, Sapienza – Università di Roma), also called simply Sapienza or the University of Rome, and formally the Università degli Studi di Roma "La Sapienza", is a Public university, public research university l ...
. His father Grigor Gurzadyan, an Armenian
astronomer An astronomer is a scientist in the field of astronomy who focuses their studies on a specific question or field outside the scope of Earth. They observe astronomical objects such as stars, planets, natural satellite, moons, comets and galaxy, g ...
pioneered space-based astronomy using satellites. His grandfather
Ashkharbek Kalantar Ashkharbek Kalantar ( hy, Աշխարհբեկ Լոռիս-Մելիք Քալանթար; February 11, 1884, in Ardvi, Armenia – June 1942) archaeologist and historian, played an important role in founding of archaeology in Armenia. Born into the ...
was a Russian Empire and Armenian archaeologist and historian, Fellow of Russian Imperial Archaeological Society and the keeper of the
Asiatic Museum The Asiatic Museum (Азиатский музей) in Saint Petersburg was one of the first museums of Asian art in Europe. Its existence spanned 112 years from 1818 to 1930 when it was incorporated into the Institute of Oriental Manuscripts of the ...
in
St. Petersburg Saint Petersburg ( rus, links=no, Санкт-Петербург, a=Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg, r=Sankt-Peterburg, p=ˈsankt pʲɪtʲɪrˈburk), formerly known as Petrograd (1914–1924) and later Leningrad (1924–1991), i ...
.


Main research

The main topics of his research: chaos in non-linear systems, accretion onto massive black holes, stellar dynamics, observational cosmology. Gurzadyan has papers predicting elliptical accretion disks formed in galactic nuclei at tidal disruption of stars near massive black holes; the tidal mechanism currently is associated to the flares observed in AGN. He has shown (with Savvidy; Gurzadyan-Savvidy relaxation) the exponential instability (chaos) in spherical stellar systems and has derived the collective relaxation time. He has formulated a list of 10 key problems in stellar dynamics He has proved a theorem (
Gurzadyan theorem In cosmology, Gurzadyan theorem, proved by Vahe Gurzadyan, states the most general functional form for the force satisfying the condition of identity of the gravity of the sphere and of a point mass located in the sphere's center. This theorem thus ...
) on the most general functional form for the force satisfying the condition of identity of the gravity of the sphere and of a point mass located in the sphere's center. http://adsabs.harvard.edu/full/1985Obs...105...42G Cosmic microwave background indications for cosmic voids were obtained by Gurzadyan et al., including on the void nature of the Cold Spot, confirmed by independent galaxy survey, as of possibly largest known structure in the Universe. Gurzadyan has suggested and initiated the use of Compton Edge method for high accuracy testing of the light speed isotropy and the
Lorentz invariance In a relativistic theory of physics, a Lorentz scalar is an expression, formed from items of the theory, which evaluates to a scalar, invariant under any Lorentz transformation. A Lorentz scalar may be generated from e.g., the scalar product of ...
at GRAAL experiment in
European Synchrotron Radiation Facility The European Synchrotron Radiation Facility (ESRF) is a joint research facility situated in Grenoble, France, supported by 22 countries (13 member countries: France, Germany, Italy, the UK, Spain, Switzerland, Belgium, the Netherlands, Denmark, ...
(Grenoble); the obtained limit became a reference number for Special Relativity extension models.


Other topics

Gurzadyan has invented the concept of
information panspermia Information panspermia is the concept of life forms travelling across the universe by means of transmission of compressed information representing said life forms e.g. via genome coding, which can then enable the recovery of intelligent life. Nam ...
which Webb attributed as Solution 23 of
Fermi Paradox The Fermi paradox is the discrepancy between the lack of conclusive evidence of advanced extraterrestrial life and the apparently high a priori likelihood of its existence, and by extension of obtaining such evidence. As a 2015 article put it, ...
. That concept includes the hypothesis that the Universe can be full of traveling extraterrestrial life streams as low-complexity compressed bit strings at
von Neumann Von Neumann may refer to: * John von Neumann (1903–1957), a Hungarian American mathematician * Von Neumann family * Von Neumann (surname), a German surname * Von Neumann (crater), a lunar impact crater See also * Von Neumann algebra * Von Ne ...
automata network. He has shown that human genome and hence the terrestrial life possess low
Kolmogorov complexity In algorithmic information theory (a subfield of computer science and mathematics), the Kolmogorov complexity of an object, such as a piece of text, is the length of a shortest computer program (in a predetermined programming language) that produ ...
and hence the corresponding bit strings can be transmitted by
Arecibo Arecibo (; ) is a city and municipality on the northern coast of Puerto Rico, on the shores of the Atlantic Ocean, located north of Utuado and Ciales; east of Hatillo; and west of Barceloneta and Florida. It is about west of San Juan, th ...
-type antenna to Galactic distances. Gurzadyan and Penrose discussed
information panspermia Information panspermia is the concept of life forms travelling across the universe by means of transmission of compressed information representing said life forms e.g. via genome coding, which can then enable the recovery of intelligent life. Nam ...
within the
Conformal Cyclic Cosmology Conformal cyclic cosmology (CCC) is a cosmological model in the framework of general relativity and proposed by theoretical physicist Roger Penrose. In CCC, the universe iterates through infinite cycles, with the future timelike infinity (i.e. the ...
, and the
cosmic microwave background radiation In Big Bang cosmology the cosmic microwave background (CMB, CMBR) is electromagnetic radiation that is a remnant from an early stage of the universe, also known as "relic radiation". The CMB is faint cosmic background radiation filling all space ...
transferring information from pre-Big Bang aeon to ours. He led a study with geneticists in
Duke University Duke University is a private research university in Durham, North Carolina. Founded by Methodists and Quakers in the present-day city of Trinity in 1838, the school moved to Durham in 1892. In 1924, tobacco and electric power industrialist James ...
introducing a new method to detect somatic mutations in genomic sequences, in proposing ''bath-quantum system'' viewpoint on the relation of thermodynamic and cosmological arrows of time.


Revealing the chronology of ancient world with astronomical dating

Gurzadyan's collaboration with archaeologists on the Chronology of the ancient Near East and his analysis of the
Venus tablet of Ammisaduqa The Venus tablet of Ammisaduqa (''Enuma Anu Enlil'' Tablet 63) is the record of astronomical positions for Venus, as preserved in numerous cuneiform tablets dating from the first millennium BC. It is believed that this astronomical record was fir ...
and of lunar eclipses of 3rd dynasty of Ur led to the introducing of the Ultra-Low chronology of the 2nd-millennium ancient Near East. He identified the
Halley's comet Halley's Comet or Comet Halley, officially designated 1P/Halley, is a short-period comet visible from Earth every 75–79 years. Halley is the only known short-period comet that is regularly visible to the naked eye from Earth, and thus the o ...
depicted on ancient coins of Armenian king
Tigranes the Great Tigranes II, more commonly known as Tigranes the Great ( hy, Տիգրան Մեծ, ''Tigran Mets''; grc, Τιγράνης ὁ Μέγας ''Tigránes ho Mégas''; la, Tigranes Magnus) (140 – 55 BC) was King of Armenia under whom the ...
, I c. BC. as the earliest known image of that comet He revealed the observation of supernova
SN 1054 SN 1054 is a supernova that was first observed on 1054, and remained visible until 1056. The event was recorded in contemporary Chinese astronomy, and references to it are also found in a later (13th-century) Japanese document, and in a doc ...
(progenitor of
Crab nebula The Crab Nebula (catalogue designations Messier object, M1, New General Catalogue, NGC 1952, Taurus (constellation), Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus (constellation), Taurus. The common name ...
) in Armenian medieval chronicle of Hetum (
Hayton of Corycus Hayton of Corycus (also ''Hethum, Het'um'', and variants; in Armenian known as "Hethum the Historian" ; c. 1240 – c. 1310/1320) was a medieval Armenian nobleman, monk and historiographer. Hayton is the author of ("Flower of the Histories of ...
) and Cronaca Rampona.


Activities

Member of
Euroscience EuroScience (the founding organisation of ESOF, EuroScience Open Forum) is a pan-European grassroots organisation for the support and promotion of science and technology in Europe. The membership of EuroScience consists of individuals interested in ...
Governing Board (elected in 1998, reelected in 2002). Chair of organizing committees of workshops such as "Ergodic Concepts in Stellar Dynamics", Geneva, 1993; "The Chaotic Universe", Rome, 1999; "Fermi and Astrophysics", Rome-Pescara, 2001; IX Marcel Grossmann meeting, Rome 2000, chair of 'Chaos' Parallel sessions at Marcel Grossmann Meetings, Jerusalem, 1997, Rome, 2000, Rio de Janeiro, 2003, Berlin, 2006. Paris, 2009. Co-editor of
International Journal of Modern Physics D The ''International Journal of Modern Physics'' is a series of Physics journals published by World Scientific. ''International Journal of Modern Physics A'' The ''International Journal of Modern Physics A'' was established in 1986, and covers s ...
(World Scientific, 2000-2010), of
The European Physical Journal Plus The ''European Physical Journal'' (or ''EPJ'') is a joint publication of EDP Sciences, Springer Science+Business Media, and the Società Italiana di Fisica. It arose in 1998 as a merger and continuation of ''Acta Physica Hungarica'', ''Anales de F ...
(Springer) and of book series 'Advances in Astronomy and Astrophysics' (Taylor & Francis, UK). Fellow of the Royal Astronomical Society (UK). Speaker at XXII
Solvay conference The Solvay Conferences (french: Conseils Solvay) have been devoted to outstanding preeminent open problems in both physics and chemistry. They began with the historic invitation-only 1911 Solvay Conference on Physics, considered a turning point i ...
on physics, keynote speaker at IXth Swiss Biennial on Science, Technics + Aesthetics on "The Large, The Small and the Human Mind", lecturer at Xth Brazilian School of Cosmology and Gravitation.


References


External links

* http://cosmo.yerphi.am/ * https://www.amazon.com/s?ie=UTF8&page=1&rh=n%3A283155%2Cp_27%3AV%20G%20Gurzadyan * https://arxiv.org/find/all/1/all:+Gurzadyan/0/1/0/all/0/1 * http://www.icra.it/People/Gurzadyan.htm * http://www.nature.com/news/2010/101210/full/news.2010.665.html#B1 {{DEFAULTSORT:Gurzadyan, Vahe 1955 births Scientists from Yerevan Armenian physicists Living people