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** “Gravity
between Newton and Einstein"**

** **

Date: |
Download-files: |
Time: |

Thursday, 12 March 2020 |
Video-Recording for any system with MP4-support
- Video.mp4 (ca. 425 Mb) |
15:15 – 16:15 |

** **

**
Niels Obers**

(Nordita)

**Abstract:**

**The quest for a consistent theory of
quantum gravity is one of the most important**

**outstanding problems in theoretical
physics. In the landscape of physical theories,**

**quantum gravity sits at the corner where
all the physical constants (speed of light,**

**Newton’s and Planck’s constant) are
finite. A region that is often overlooked is the**

**nonrelativistic gravity regime. Contrary
to common lore, it is becoming clear that**

**the theory of nonrelativistic gravity is
much richer than was so far appreciated,**

**containing much more than just Newtonian
gravity. Thus, this offers an entirely**

**unexplored potential as a new route
towards quantum gravity. **

**Central to this development is the
formulation of non-relativistic gravity in terms of**

**Newton–Cartan type geometries, originally introduced by
Cartan in 1923 to**

**geometrize Newton's law of gravitation.
Moreover, a wide range of recent applications**

**of Newton-Cartan Geometry, spanning from
string theory and holography to**

**condensed matter and biophysical systems,
have spurred further interest and insights**

**into Newton-Cartan geometry and related non-relativistic
geometries. **

**In this talk, I will present an overview
of these developments and their future perspectives.**

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