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BEGIN:VEVENT
SUMMARY:Multi-critical multi-field models: a CFT approach in leading order
.
DTSTART;VALUE=DATE-TIME:20180926T134500Z
DTEND;VALUE=DATE-TIME:20180926T143000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-589@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Gian Paolo Vacca (INFN)\nI present general results f
or the multi-critical multi-field models in d>2 recently obtained using CF
T+Schwinger-Dyson methods without assuming any symmetry. Results in the le
ading non trivial order are derived consistently for several conformal dat
a in full agreement with functional perturbative RG methods. I also discus
s the special cases of Potts models with S_q symmetry having critical dime
nsion d_c>3.\n\nhttps://indico.mitp.uni-mainz.de/event/134/contributions/5
89/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/589/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Asymptotic Safety\, Background Independence and Unitarity
DTSTART;VALUE=DATE-TIME:20180927T134500Z
DTEND;VALUE=DATE-TIME:20180927T143000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-590@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Daniel Becker (Gymnasium Herkenrath)\nWhat should a
fundamental theory of quantum gravity look like? While the theories united
in the Standard Model of particle physics fulfill a standard set of requi
rements\, gravity is special in the sense that spacetime itself becomes dy
namical.\n\nThe independence of any preset background geometry is thus at
the root of every quantum generalization of general relativity\, as is (no
nperturbative) renormalizability. The latter started the long ongoing disc
ussion on a suitable approach to quantum gravity\, for it was shown\, that
standard "quantization" of the classical Einstein-Hilbert action led is n
ot renormalizable. Higher derivatives might be the cure\, however unitarit
y seems to be lost.\n\nIn this talk\, the aspects of background independen
ce and unitarity are investigated within the Asymptotic Safety program to
quantum gravity. While technically challenging\, the studied cases indicat
ed that instead of being a burden\, both concepts might help as "standard
candles" in the sky of all possible theories.\n\nhttps://indico.mitp.uni-m
ainz.de/event/134/contributions/590/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/590/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Quantum gravity and the search for observables
DTSTART;VALUE=DATE-TIME:20180927T070000Z
DTEND;VALUE=DATE-TIME:20180927T074500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-591@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Renate Loll ()\nhttps://indico.mitp.uni-mainz.de/eve
nt/134/contributions/591/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/591/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Geometric operators in Asymptotic Safety
DTSTART;VALUE=DATE-TIME:20180927T074500Z
DTEND;VALUE=DATE-TIME:20180927T083000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-592@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Carlo Pagani ()\nWe consider the scaling properties
of geometric operators such as parametrized curves\, surfaces\, and volume
s in the context of the Asymptotic Safety scenario for Quantum Gravity. We
also discuss the scaling properties of geodesics and their possible role
in the Asymptotic Safety scenario.\n\nhttps://indico.mitp.uni-mainz.de/eve
nt/134/contributions/592/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/592/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Quantum Gravity in the sky?
DTSTART;VALUE=DATE-TIME:20180927T113000Z
DTEND;VALUE=DATE-TIME:20180927T123000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-593@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Abhay Ashtekar (Penn State)\nThanks to the spectacul
ar observational advances since the 1990s\, a `standard model' of the earl
y universe has now emerged. However\, since it is based on quantum field t
heory in curved space-times\, it is not applicable in the Planck regime. U
sing techniques from loop quantum gravity\, the theory can be extended ove
r the 12 orders of magnitude in density and curvature from the onset of in
flation all the way back to the Planck regime\, providing us with a possib
le completion of the standard model. Contrary to a common belief\, the res
ulting pre-inflationary dynamics can have observational consequences. Thus
\, there is now an an interesting interplay between fundamental theory and
observations. The talk will provide a broad overview of these results.\n\
nhttps://indico.mitp.uni-mainz.de/event/134/contributions/593/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/593/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Cosmological bounds on the field content of asymptotically safe gr
avity-matter models
DTSTART;VALUE=DATE-TIME:20180927T130000Z
DTEND;VALUE=DATE-TIME:20180927T134500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-597@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Alessia Platania (Heidelberg University (ITP))\nWe u
se the non-Gaussian fixed points (NGFPs) appearing in the renormalization
group flow of gravity and gravity-matter systems to construct models of NG
FP-driven inflation via a renormalization group improvement scheme. The co
smological predictions of these models depend sensitively on the character
istic properties of the NGFPs\, including their position and stability coe
fficients\, which in turn are determined by the field content of the under
lying matter sector. We show that the NGFPs appearing in gravity-matter sy
stems where the matter content is close to the one of the standard model o
f particle physics are compatible with cosmological data. Somewhat counter
intuitively\, the negative fixed point value of the dimensionless cosmolog
ical constant is essential for these findings.\n\nhttps://indico.mitp.uni-
mainz.de/event/134/contributions/597/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/597/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Is Lorentz symmetry relevant?
DTSTART;VALUE=DATE-TIME:20180927T090000Z
DTEND;VALUE=DATE-TIME:20180927T094500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-598@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Benjamin Knorr (Radboud University)\nAmong the sever
al approaches to quantise gravity\, one particular is Horava-Lifshitz grav
ity\, claiming that Lorentz symmetry is broken microscopically\, which mig
ht allow a perturbative renormalisation of gravity. For this scenario to b
e related to the real world\, Lorentz symmetry must be restored on large s
cales to be consistent with countless experiments. I propose a new foliate
d renormalisation group equation which preserves background diffeomorphism
symmetry if the initial action is invariant. With this\, it can be invest
igated whether quantum effects enhance or diminish Lorentz symmetry violat
ions.\n\nhttps://indico.mitp.uni-mainz.de/event/134/contributions/598/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/598/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Towards a predictive ultraviolet completion for quantum gravity an
d the Standard Model
DTSTART;VALUE=DATE-TIME:20180927T094500Z
DTEND;VALUE=DATE-TIME:20180927T103000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-599@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Astrid Eichhorn ()\nI will discuss recent progress t
owards an ultraviolet completion of the Standard Model induced by asymptot
ically safe quantum fluctuations of gravity. In particular\, I will focus
on a scenario to retrodict the top and bottom mass and the Abelian gauge c
oupling from asymptotic safety. In an approximation\, antiscreening quantu
m-gravity fluctuations induce an asymptotically safe fixed point for the A
belian hypercharge leading to a uniquely fixed infrared value that is obse
rvationally viable for a particular choice of microscopic gravitational pa
rameters. The unequal quantum numbers of the top and bottom quark lead to
different fixed-point values for the top and bottom Yukawa under the impac
t of gauge and gravity fluctuations. This results in a dynamically generat
ed mass difference between the two quarks. To work quantitatively\, the pr
eferred ratio of electric charges of bottom and top in our approximation l
ies in close vicinity to the Standard-Model value of Q_b/Q_t =-1/2.\n\nhtt
ps://indico.mitp.uni-mainz.de/event/134/contributions/599/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/599/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dimension and Dimensional Reduction in Quantum Gravity
DTSTART;VALUE=DATE-TIME:20180926T113000Z
DTEND;VALUE=DATE-TIME:20180926T123000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-600@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Steven Carlip (University of California at Davis)\nI
f gravity is asymptotically safe\, we expect operators to exhibit anomalou
s scaling at the UV fixed point in a way that makes the theory effectively
two-dimensional. A number of independent lines of evidence\, based on dif
ferent approaches to quantization\, indicate a similar short distance dime
nsional reduction. I will review the evidence for this behavior — emphas
izing the physical question of what one means by "dimension" in a quantum
spacetime — and will discuss possible mechanisms that could explain the
universality of this phenomenon.\n\nhttps://indico.mitp.uni-mainz.de/event
/134/contributions/600/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/600/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Universality in the epsilon-expansion
DTSTART;VALUE=DATE-TIME:20180926T130000Z
DTEND;VALUE=DATE-TIME:20180926T134500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-601@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Alessandro Codello ()\nAfter reviewing the Functiona
l reformulation of the standard Perturbative RG (FPRG)\, I'll describe the
classification of universality classes in arbitrary dimension within the
epsilon-expansion and the relative determination of CFT data.\n\nIn the si
ngle component case\, universality classes are represented by renormalizab
le scalar QFTs with self-interacting potentials of highest monomial φ^m b
elow their upper critical dimensions dc = 2m/(m -2). For even integers\, m
≥ 4 these theories coincide with the Landau-Ginzburg description of mul
ti-critical phenomena and interpolate with the unitary minimal models in d
= 2\, while for odd m the theories are non-unitary and start at m = 3 wit
h the Lee-Yang universality class.\n\nAn important outcome of this analysi
s is the realization of the existence of a new non-trivial family of d = 3
universality classes with upper critical dimension dc = 10/3.\n\nSubseque
ntly\, I will show how the FPRG formalism allows a straightforward general
ization to the multicomponent case\, with almost no need for additional co
mputations. The classification of multicomponent universality classes if f
ar from complete and I will discuss the present state of knowledge with fe
w examples\, including Potts and O(N) models.\n\nI will conclude with a re
view and outlook of the application of the epsilon-expansion to Quantum Gr
avity.\n\nhttps://indico.mitp.uni-mainz.de/event/134/contributions/601/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/601/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The problem of vacuum in quantum gravity: a view from Asymptotic S
afety
DTSTART;VALUE=DATE-TIME:20180926T094500Z
DTEND;VALUE=DATE-TIME:20180926T103000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-602@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Alfio Maurizio Bonanno (INAF Catania - INFN)\nWe use
the non-Gaussian fixed points (NGFPs) appearing in the renormalization gr
oup flow of gravity and gravity-matter systems to construct models of NGFP
-driven inflation via a renormalization group improvement scheme. The cosm
ological predictions of these models depend sensitively on the characteris
tic properties of the NGFPs\, including their position and stability coeff
icients\, which in turn are determined by the field content of the underly
ing matter sector. We show that the NGFPs appearing in gravity-matter syst
ems where the matter content is close to the one of the standard model of
particle physics are compatible with cosmological data. Somewhat counterin
tuitively\, the negative fixed point value of the dimensionless cosmologic
al constant is essential for these findings.\n\nhttps://indico.mitp.uni-ma
inz.de/event/134/contributions/602/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/602/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anti-Newtonian Expansions and the Functional Renormalization Group
DTSTART;VALUE=DATE-TIME:20180926T090000Z
DTEND;VALUE=DATE-TIME:20180926T094500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-603@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Max Niedermaier (Department of Physics and Astronomy
\, University of Pittsburgh)\nIn QFT an Anti-Newtonian expansion perturbs
around decoupled copies of a self-interacting quantum mechanical system\,
with subsequent coupling induced by spatial hopping terms. Such an expansi
on is developed for the effective action of 1+d dimensional scalar QFTs. A
Functional Renormalization Group in the hopping parameter leads to a recu
rsion for which an exact solution in terms of combinatorial graph rules is
presented.\n\nUpon coupling to gravity a coordinated gravitational expans
ion is needed to account for the classical backreaction of scalar field in
homogeneities. In Einstein gravity\, the Anti-Newtonian limit has no dynam
ical spatial gradients\, yet remains fully diffeomorphism invariant and pr
opagates the original number of dofs. A canonical transformation (triviali
zation map) is constructed\, in powers of a fractional inverse of Newton's
constant that maps the ADM action into its Anti-Newtonian limit. Its inve
rse restores dynamical spatial gradients and provides classically the coor
dinated gravitational expansion. We outline the prospects of an associated
trivializing flow in the quantum theory.\n\nhttps://indico.mitp.uni-mainz
.de/event/134/contributions/603/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/603/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Infrared quantum gravity: Status report
DTSTART;VALUE=DATE-TIME:20180928T130000Z
DTEND;VALUE=DATE-TIME:20180928T134500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-609@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: BASEM ELMENOUFI (UNIVERSITY OF SUSSEX)\nAlthough per
turbatively non-renormalizable\, general relativity is a perfectly valid q
uantum theory at low energies. Treated as an effective field theory one is
able to make genuine quantum predictions by applying the conventional rul
es of quantum field theory. The low energy degrees of freedom and coupling
s of quantum gravity are fully dictated by the symmetries of general relat
ivity. At long distances\, the leading quantum corrections are precisely i
nduced by the low-energy fluctuations of the massless graviton. Non-local
effective actions efficiently encode the latter class of quantum correctio
ns. In this talk I will provide an overview of recent progress in infrared
quantum gravity.\n\nhttps://indico.mitp.uni-mainz.de/event/134/contributi
ons/609/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/609/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Resurgence and Non-perturbative Physics
DTSTART;VALUE=DATE-TIME:20180928T113000Z
DTEND;VALUE=DATE-TIME:20180928T123000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-610@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Gerald Dunne (University of Connecticut)\nResurgence
is a new approach to quantum field theory that combines perturbative and
non-perturbative effects in a unified framework. The primary motivation is
to uncover new computationally practical methods for path integrals in st
rongly interacting finite density and non-equilibrium systems. I'll give a
n overview of the key ideas and discuss applications to quantum field theo
ry\, matrix models and quantum mechanics\, where new relations between per
turbative and non-perturbative sectors have been discovered.\n\nhttps://in
dico.mitp.uni-mainz.de/event/134/contributions/610/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/610/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Riemann's Zeta Function in Mathematics and Physics
DTSTART;VALUE=DATE-TIME:20180926T073000Z
DTEND;VALUE=DATE-TIME:20180926T083000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-611@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Walter Dittrich ()\nTBA\n\nhttps://indico.mitp.uni-m
ainz.de/event/134/contributions/611/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/611/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Wicked Metrics
DTSTART;VALUE=DATE-TIME:20180928T094500Z
DTEND;VALUE=DATE-TIME:20180928T103000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-612@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Roberto Percacci ()\nI will discuss various definiti
ons of Wick rotation in a gravitational context and argue in favor of a de
finition where it is viewed as an analytic continuation of the metric. I w
ill then show that also this definition has severe shortcomings. In partic
ular\, it may not always be possible to preserve the field Equations and t
he symmetries at global level.\n\nhttps://indico.mitp.uni-mainz.de/event/1
34/contributions/612/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/612/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Quantum gravity from the boundary: holography and renormalization
DTSTART;VALUE=DATE-TIME:20180928T090000Z
DTEND;VALUE=DATE-TIME:20180928T094500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-613@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Bianca Dittrich ()\nA quantum gravity theory should
yield a prescription of how to assign quantum amplitudes to arbitrary boun
dary geometries. I will describe a renormalization program for background
independent theories\, where the coarseness of the boundary data is used t
o define a notion of scale and truncations for the renormalization flow. T
his allows to bootstrap the amplitudes from coarse to finer and finer ampl
itudes. I will then explore holographic properties of quantum gravity ampl
itudes for general\, not necessarily asymptotic boundaries. We will see th
at three-dimensional quantum gravity allows for a holographic dual descrip
tion\, with a dual local field describing the embedding of the boundary in
to the higher dimensional space time. In the four-dimensional case a simi
lar descriptions holds for the flat sector of the theory. Including curvat
ure degrees of freedom leads to non-localities in the dual field.\n\nhttps
://indico.mitp.uni-mainz.de/event/134/contributions/613/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/613/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Vacuum effective actions and the decoupling limit of quantum gravi
ty
DTSTART;VALUE=DATE-TIME:20180928T074500Z
DTEND;VALUE=DATE-TIME:20180928T083000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-614@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Omar Zanusso ()\nWe discuss the low-energy gravitati
onal effective action induced by quantum fluctuations of two- and four-dim
ensional massive matter fields. We show that the effective action agrees w
ith expectations based on the Appelquist-Carazzone theorem and provide a r
enormalization group interpretation of the results which is rather scheme-
independent in that it does not depend explicitly on a cutoff scale. Our f
indings point at interesting but still unexplored properties of the beta f
unction of the Newton's constant and its bottom-up relation with conformal
field theory.\n\nhttps://indico.mitp.uni-mainz.de/event/134/contributions
/614/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/614/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The large-N limit in tensor-valued field theories
DTSTART;VALUE=DATE-TIME:20180928T070000Z
DTEND;VALUE=DATE-TIME:20180928T074500Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-615@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Dario Benedetti ()\nThe large-N limit of quantum fie
ld theories with fields in the fundamental\nor adjoint representation of a
compact Lie group\, such as O(N) or U(N)\,\nhas been extensively studied
over the years as a tool for accessing\nnon-perturbative physics by analyt
ic means.\nNot much has been done instead until recent years for the large
-N limit of\ntheories in tensor product representations\, or in the fundam
ental\nrepresentations of product groups\, such as O(N)xO(N)xO(N). The sit
uation\nhas recently changed thanks to two developments: the discovery tha
t the\nlarge-N limit of such theories selects melonic Feynman diagrams\, a
nd the\nrealization that such limit can lead to new interesting models of
AdS/CFT\ncorrespondence.\nIn this talk\, I will briefly review such develo
pments and I will present\nsome new results about a tensor generalization
of the Gross-Neveu model.\n\nhttps://indico.mitp.uni-mainz.de/event/134/co
ntributions/615/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/615/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Towards the quantum effective action(s) of gravity
DTSTART;VALUE=DATE-TIME:20180928T134500Z
DTEND;VALUE=DATE-TIME:20180928T143000Z
DTSTAMP;VALUE=DATE-TIME:20210625T014438Z
UID:indico-contribution-134-616@indico.mitp.uni-mainz.de
DESCRIPTION:Speakers: Frank Saueressig (Radboud University Nijmegen)\nBy d
efinition\, the quantum effective action describes the dynamics of a theor
y taking all quantum effects into account. Conceptually\, it may provide a
n important bridge between the fundamental description of gravity and its
phenomenological consequences. This talk outlines a new approach to constr
uct the quantum effective action for gravity based on correlation function
s. This approach gives access to both the local and non-local interactions
appearing in the effective description. As a first application we discuss
the partial reconstruction of the quantum effective action from correlati
on functions obtained within the Causal Dynamical Triangulations program.\
n\nhttps://indico.mitp.uni-mainz.de/event/134/contributions/616/
LOCATION:Mainz Institute for Theoretical Physics\, Johannes Gutenberg Univ
ersity 02.430
URL:https://indico.mitp.uni-mainz.de/event/134/contributions/616/
END:VEVENT
END:VCALENDAR