Cosmology

altmodels

Anonymous (anonymous@undisclosed.example.com) — 2013-09-05T10:19:55+00:00

Inhomogeneous models this PRL Due to the very large distances considered, in cosmology we can observe a given place of the universe only at a given moment in time. It is therefore difficult to disentangle temporal evolution from possible spatial variations around us. In order to deal with this problem, the standard approach is to use the Copernican principle which states that humans are not privileged observers of the universe. Along with the observed isotropy, the latter statement implies indee…

cmb

Anonymous (anonymous@undisclosed.example.com) — 2015-02-10T15:13:55+00:00

CMB The Cosmic Microwave Background (CMB) radiation is composed of photons emitted at the time of the recombination when the universe was about 300,000 years old, just after the Big Bang (redshift value about 1100). This radiation is almost isotropic and very well described by a black body power spectrum. However the CMB presents also very small anisotropies which can be described by the angular power spectrum. Given a cosmological model, the angular power spectrum can be computed and compa…

codes

Anonymous (anonymous@undisclosed.example.com) — 2015-01-19T17:22:24+00:00

ITP Cosmology Group Codes Codes from Users and Repositories Listed for You ----------

darkenergy

Anonymous (anonymous@undisclosed.example.com) — 2021-10-18T12:36:54+00:00

Dark Energy and Modified Gravity this paper. Dark Energy is the enigmatic cause of the acceleration of the cosmic expansion. Since the discovery of acceleration in 1998, scientists are trying to understand the nature of the substance that drives the cosmic kinematics. The cosmological constant introduced by Einstein in 1917 is a possible explanation, but many others are still observationally acceptable. Among these, there are models that modify gravity, or that depend on extra-dimensional physi…

darkmatter

Anonymous (anonymous@undisclosed.example.com) — 2014-06-30T11:01:49+00:00

Dark Matter this paper. Dark Matter (DM) amounts to about 21% of the total energy budget and is the main ingredient for the formation of structures like galaxies and clusters of galaxies. It is the 'glue' that is necessary to keep galaxies together and surrounds them with a 'galactic halo'. Unlike Dark Energy, Dark Matter still feels gravitational attraction and in the standard model it is made of particles which are pressureless.

euclid

Anonymous (anonymous@undisclosed.example.com) — 2022-12-12T13:08:21+00:00

ITP Heidelberg involvement in the Euclid Collaboration From the ESA official website: "Euclid is an ESA mission to map the geometry of the dark Universe. The mission will investigate the distance-redshift relationship and the evolution of cosmic structures by measuring shapes and redshifts of galaxies and clusters of galaxies out to redshifts ~2, or equivalently to a look-back time of 10 billion years. In this way, Euclid will cover the entire period over which dark energy played a signifi…

events_kh-massivegravity-program

Anonymous (anonymous@undisclosed.example.com) — 2016-04-08T09:52:46+00:00

Mini-course on massive gravity by Kurt Hinterbichler (Perimeter Institute): Tuesday-Wednesday-Thursday from 14:15 to 15:45. (July 14-16, 2015) The lectures will take place on Room 68 of Philosophenweg 12. Outline: 1) Massive spin-1 warm up: proca lagrangian, hamiltonian, quantization, interactions, stuckelberg trick, decoupling limit.

events_pietroni-slides

Anonymous (anonymous@undisclosed.example.com) — 2016-04-08T10:16:17+00:00

Non-linear perturbation theory for Large Scale Structure Prof. Massimo Pietroni, (Padova, Italy) Slides:

events

Anonymous (anonymous@undisclosed.example.com) — 2021-10-16T16:09:57+00:00

Events Important conferences, seminars, workshops and activities in which our group is directly involved ---------- Next Events: 5 - 10 December 2021: Fourteenth Tonale Winter School, Passo del Tonale (Italy), Theory for Observers & Observations for Theorists.

forecasting

Anonymous (anonymous@undisclosed.example.com) — 2015-10-02T12:35:29+00:00

Forecasting arxiv:1401.6892 Theoretical physics poses questions about nature that have to be answered by taking data. However, building and conducting an experiment is a tedious and painstaking effort and often practical necessities enforce decisions about the design. Theoreticians can optimize these decisions by forecasting which experimental design will ultimately lead to the most constraining data.

inflation

Anonymous (anonymous@undisclosed.example.com) — 2013-09-19T17:49:41+00:00

Inflation Cosmological inflation, or inflation for short, is the idea that the early universe underwent an epoch of extremely rapid accelerated expansion. During this area the volume of the universe grew by a factor of ∼1078 within ~10-32 sec. This extremely rapid expansion of the universe ended when the potential energy, driving the rapid exponential expansion, was transferred into radiation which is called reheating.

joint

Anonymous (anonymous@undisclosed.example.com) — 2026-02-23T13:32:01+00:00

Selected topics in theory and observations of Dark Energy (ITP Cosmology Tunch) + Journal Club Wednesday, PW 12, R 105 In presence unless otherwise noted 14:15 ---------- Subscribe to calendar feed Customize calendar feed Go to the calendar of Cosmology seminars (Usually on Tuesdays, 2:15 pm) ---------- Seminar calendar ${\mathcal M}\equiv \Omega_m^{(0)}\mu$$\mu$$\Omega_m^{(0)}$$f(z)$$E(z)$${\mathcal M}$${\mathcal M}$$z=1.5$${\mathcal M}$$\sigma$$\Lambda$$\sigma_{12}$$t_{eq}$$H_0$$\Lamb…

journalclub

Anonymous (anonymous@undisclosed.example.com) — 2017-05-09T19:20:57+00:00

ITP / ITA Journal Club * This page refers to Journal Club meetings up to the Winter Semester 2016/17. * * For subsequent semesters see Joint JC/Tunch * Tuesday, Phil 12, Room 056 13:00 - 15:00 The ITP/ITA Journal Club is a joint Journal Club from the Cosmology groups of ITA and ITP.

lensing

Anonymous (anonymous@undisclosed.example.com) — 2013-09-05T10:21:53+00:00

Lensing arXiv:1307.1155 Distance measurements - for instance coming from supernova observations - are affected by the large-scale structure of the universe through lensing. The ITP Cosmology group is studying the lensing probability distribution function of standard candles such as supernovae, gamma ray bursts, etc. In particular, lensing is studied by means of the publicly available

links

Anonymous (anonymous@undisclosed.example.com) — 2015-05-09T14:56:34+00:00

---------- Related Cosmology Groups Brazil Valerio Marra UFES ---------- Interesting links Euclid project: Planck project: Cosmology question of the week:

* Cosmo Group Home * Research * Dark Energy * Inhomogeneous models * Lensing * CMB * Dark Matter * Inflation * Forecasting * People * Teaching * Luca Amendola's courses * Michael Doran's courses * CMB * Statistical Methods in Astrophysics * Solarenergie 2007 * Seminar "Erneuerbare Energien und Energieeffizienz" * Solarenergie 2009 * Solarenergie 2011 * Photovoltaik 2011 * Photovoltaik 2012 * Photovoltaik 2014 * Obersemina…

people

Anonymous (anonymous@undisclosed.example.com) — 2023-05-31T05:55:01+00:00

Professors and Staff * Christof Wetterich * Luca Amendola * Eduard Thommes Post Docs * Ziad Sakr PhD Students * Ziyang Zheng Master Students * Leonid Schey * Anna Lassen * Nico Lorenz * Konstantin Meyer * Vrund Patel * Angela Turnes Bachelor Students * Niall Nawder Stokes

pub

Anonymous (anonymous@undisclosed.example.com) — 2016-02-10T15:45:18+00:00

ITP Cosmology Publications Publications since 2010 ----------

research

Anonymous (anonymous@undisclosed.example.com) — 2014-09-09T08:23:23+00:00

Our research focuses on: * Dark Energy * Inhomogeneous cosmological models * Lensing of standard candles * Cosmic Microwave Background * Inflation * Dark Matter * Forecasting

seminar

Anonymous (anonymous@undisclosed.example.com) — 2025-11-14T08:45:20+00:00

ITP Cosmology Seminars Tuesdays, 2:15 pm. The seminars take place in SR, Philosophenweg 19 and online via Zoom Organizers: Luca Amendola, Ángela Turnes-Mendez, Ziyang Zheng. ---- Subscribe to calendar feed Customize calendar feed Go to the calendar of the Joint Tunch/JC ---------- ---------- Seminar calendar $0.3 \leq z \leq 1.7$$E(z)$$r_d$$4\sigma$$5\sigma$$\Lambda$$z \sim 0.35–0.55$$f(R)$$f(R)$$f(R)$$f$$f(R)$$R = 0$$f(R)$$f(R)$$\Lambda$$4.6\sigma$$M$$z\lesssim 0.2$$M$$z\gtrsim 1.5-2…

seminarlist

Anonymous (anonymous@undisclosed.example.com) — 2018-11-14T23:48:38+00:00

* Cosmology Seminars * Journal Club (until Winter Semester 2016/17: see Joint Tunch/JC for subsequent semesters) * Tunches (until Winter Semester 2016/17: see Joint Tunch/JC for subsequent semesters ) * Heidelberg Physics Seminars * Joint Tunch/JC

sidebar

Anonymous (anonymous@undisclosed.example.com) — 2013-07-23T16:56:19+00:00

Cosmology Group Transregio Collaboration TRR33

start

Anonymous (anonymous@undisclosed.example.com) — 2023-05-31T06:04:34+00:00

Welcome to the Amendola-Wetterich cosmology group of the Institute for Theoretical Physics! Disclaimer: We believe all the information and images contained in these pages is in the public domain and should not be considered personal data. If you have any objection please let us know and we will do our best to solve the issue.

teaching

Anonymous (anonymous@undisclosed.example.com) — 2017-07-21T16:03:40+00:00

Courses by ITP Cosmology members: * Luca Amendola's courses * Michael Doran's courses * Christoph Wetterich's courses * Valeria Pettorino's courses * Group Lectures: Testing Fundamental Physics with Cosmology * Lecture Notes: Tenth TRR33 Dark Universe Winter School, Tonale, 2016

tunch

Anonymous (anonymous@undisclosed.example.com) — 2018-04-12T09:41:47+00:00

ITP Cosmology Tunch * This page refers to Tunch meetings up to the Winter Semester 2016/17. See the page Joint Tunch/JC for an updated list of Journal Clubs and Tunches * * For subsequent semesters, see Joint JC/Tunch * Tuesday, PW 12, Room 056 13:00 - 15:00