Mag. Harold Steinacker, Privatdoz. PhD







Anagnostopoulos, K., Anninos, D., Anous, T., Bachas, C., Carmona, J. M., Chatzistavrakidis, A., Fotopoulos, A., Giataganas, D., Grana, M., Gubitosi, G., Kalinowski, J., Mavromatos, N., Nishimura, J., Rebelo, M. N., Saridakis, E., Steinacker, H., Stieberger, S., Szabo, R., Vitale, P., ... Zoupanos, G. (2022). Foreword to the Proceedings of the Corfu Summer Institute “School and Workshops on Elementary Particle Physics and Gravity” (CORFU2021). Proceedings of Science, 406, [362]. https://doi.org/10.22323/1.406.0362













The IKKT matrix model as a possible basis for (quantum) gravity & cosmology

Harold Steinacker (Speaker)

13 Dec 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


The IKKT matrix model as a possible basis for (quantum) gravity & cosmology

Harold Steinacker (Speaker)

15 Nov 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


3+1-dimensional quantum gravity on quantum space-time from the IKKT model

Harold Steinacker (Speaker)

19 Sep 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Teilnahme mit Vortrag

Harold Steinacker (Speaker)

23 Jan 202327 Jan 2023

Activity: Talks and presentationsTalk or oral contributionScience to Science


Gravity as a quantum effect on quantum space-time

Harold Steinacker (Speaker)

13 Oct 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Matrix Models, Quantum Spaces, and Gravity

Harold Steinacker (Speaker)

7 Oct 2022

Activity: Talks and presentationsTalk or oral contributionScience to Public


"The IIB matrix model, quantum spacetime and emergent higher-spin gravity"

Harold Steinacker (Speaker)

7 Sep 2022

Activity: Talks and presentationsTalk or oral contributionScience to Science


Leben wir in der Matrix ?

Harold Steinacker (Speaker)

12 May 2022

Activity: Talks and presentationsTalk or oral contributionScience to Public


”Gravity as a quantum effect on quantum space-time

Harold Steinacker (Speaker)

30 Nov 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Gravity as a quantum effect on quantum space-time

Harold Steinacker (Speaker)

20 Sep 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


(Higher-spin) gravity as a quantum effect on quantum space-time

Harold Steinacker (Speaker)

25 Aug 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


Higher-spin gauge theory and gravity from matrix models

Harold Steinacker (Speaker)

13 Apr 2021

Activity: Talks and presentationsTalk or oral contributionScience to Science


"Higher-spin-type gravity and torsion emerging on a quantized cosmological space-time in matrix models"

Harold Steinacker (Speaker)

26 Feb 2020

Activity: Talks and presentationsTalk or oral contributionScience to Science


Higher-spin gauge theory, matrix models & the quantum structure of space-time

Harold Steinacker (Speaker)

21 Feb 2020

Activity: Talks and presentationsTalk or oral contributionScience to Science


Humboldt Kolleg "Frontiers in Physics: From the Electroweak to the Planck Scales"

Harold Steinacker (Invited speaker)

15 Sep 201919 Sep 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Gravity and a Linearized Schwarzschild Solution in the IKKT Matrix Model

Harold Steinacker (Invited speaker)

5 Sep 20197 Sep 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


On Matrix models, Quantum geometry, and (higher-spin) gravity

Harold Steinacker (Invited speaker)

10 May 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum space-time, higher spin and gravity from the IKKT Matrix model

Harold Steinacker (Invited speaker)

25 Feb 201927 Feb 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantum space-time, higher spin and gravity from the IKKT Matrix model

Harold Steinacker (Invited speaker)

11 Feb 201915 Feb 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Fuzzy spaces and gravity

Harold Steinacker (Invited speaker)

15 Jan 201918 Jan 2019

Activity: Talks and presentationsTalk or oral contributionScience to Science


Higher spin gauge theory on fuzzy spacetimes from the IKKT Matrix model

Harold Steinacker (Invited speaker)

3 Dec 20187 Dec 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


From equivariant bundles to quantized space-times and higer-spin gauge theory

Harold Steinacker (Invited speaker)

29 Nov 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantized cosmological spacetimes and higher spin in the IKKT model

Harold Steinacker (Speaker)

4 Sep 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantized cosmological spacetimes and higher spin in the IKKT model

Harold Steinacker (Speaker)

30 Aug 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantized cosmological spacetimes and higher spin in the IKKT model

Harold Steinacker (Speaker)

24 Aug 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Quantized cosmological spacetimes and higher spin the IKKT model

Harold Steinacker (Invited speaker)

10 Jul 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


From Matrix models to quantized cosmological space-times (and gravity?)

Harold Steinacker (Invited speaker)

18 Jun 201822 Jun 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


Matrix models and the Quantum structure of space, time and matter

Harold Steinacker (Speaker)

17 Apr 2018

Activity: Talks and presentationsTalk or oral contributionScience to Science


From matrix models to quantized geometry, gravity and cosmology

Harold Steinacker (Invited speaker)

15 Nov 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Fuzzy spaces and space-times from Yang-Mills matrix models

Harold Steinacker (Invited speaker)

2 Nov 20173 Nov 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Emergent gravity and higher spin on covariant quantum spaces

Harold Steinacker (Invited speaker)

22 Sep 201728 Sep 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Covariant quantum spaces and higher-spin theory in the IKKT matrix model

Harold Steinacker (Invited speaker)

4 Sep 20176 Sep 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Higher-spin theory and gravity from fuzzy 4-spheres

Harold Steinacker (Invited speaker)

9 Jun 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Covariant quantum spaces and higher spin from matrix models

Harold Steinacker (Invited speaker)

6 Jun 201710 Jun 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Covariant Quantum Spaces, the IKKT Model and Gravity

Harold Steinacker (Invited speaker)

20 Mar 201723 Mar 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Covariant Quantum Spaces, the IKKT Model and Gravity

Harold Steinacker (Invited speaker)

23 Feb 2017

Activity: Talks and presentationsTalk or oral contributionScience to Science


Matrix Models, covariant quantum spaces and gravity

Harold Steinacker (Invited speaker)

6 Dec 20169 Dec 2016

Activity: Talks and presentationsTalk or oral contributionOther


Covariant quantum spaces and emergent gravity in the IKKT matrix model

Harold Steinacker (Invited speaker)

12 Oct 2016

Activity: Talks and presentationsTalk or oral contributionOther


String states, loops and effective action in NC field theory and matrix models

Harold Steinacker (Invited speaker)

26 Sep 20161 Oct 2016

Activity: Talks and presentationsTalk or oral contributionOther


Fuzzy spaces and applications

Harold Steinacker (Invited speaker)

21 Aug 201628 Aug 2016

Activity: Talks and presentationsTalk or oral contributionOther


Emergent 4D gravity on covariant quantum spaces in the IKKT model

Harold Steinacker (Invited speaker)

4 Jul 20167 Jul 2016

Activity: Talks and presentationsTalk or oral contributionOther


The fuzzy four-sphere and its stabilization by vacuum energy

Harold Steinacker (Speaker)

6 Feb 201612 Feb 2016

Activity: Talks and presentationsTalk or oral contributionOther


Die moderne Physik nach Einstein oder: Rätsel zwischen Relativitätstheorie und Quantentheorie

Harold Steinacker (Invited speaker)

27 Oct 2015

Activity: Talks and presentationsTalk or oral contributionOther


The issue of Quantum Space-Time

Harold Steinacker (Invited speaker)

21 Sep 2015

Activity: Talks and presentationsTalk or oral contributionOther


Chiral low-energy physics from squashed brane solutions in deformed N=4 Super-Yang-Mills

Harold Steinacker (Speaker)

1 Sep 20154 Sep 2015

Activity: Talks and presentationsTalk or oral contributionOther


Chiral low-energy physics from squashed branes in deformed N=4 SYM

Harold Steinacker (Invited speaker)

23 Aug 201529 Aug 2015

Activity: Talks and presentationsTalk or oral contributionOther


Squashed fuzzy extra dimensions from coadjoint orbits in N=4 SYM with large rank

Harold Steinacker (Invited speaker)

1 Jun 20155 Jun 2015

Activity: Talks and presentationsTalk or oral contributionOther


Self-intersecting fuzzy extra dimensions and chiral gauge theory in N=4 super-Yang-Mills

Harold Steinacker (Invited speaker)

16 Jan 2015

Activity: Talks and presentationsTalk or oral contributionOther


Self-intersecting fuzzy extra dimensions and chiral gauge theory in N=4 super-Yang-Mills

Harold Steinacker (Invited speaker)

12 Jan 2015

Activity: Talks and presentationsTalk or oral contributionOther


Spinning squashed extra dimensions, gauge theory and hierarchy in N=4 super-Yang-Mills

Harold Steinacker (Invited speaker)

27 Nov 2014

Activity: Talks and presentationsTalk or oral contributionOther


From matrix models to the theory of fundamental interactions

Harold Steinacker (Invited speaker)

18 Jun 2014

Activity: Talks and presentationsTalk or oral contributionOther


An Extended Standard model and its Higgs geometry from the matrix model

Harold Steinacker (Invited speaker)

14 May 2014

Activity: Talks and presentationsTalk or oral contributionOther


An extended standard model and ist Higgs geometry from the matrix model

Harold Steinacker (Invited speaker)

18 Feb 201421 Feb 2014

Activity: Talks and presentationsTalk or oral contributionOther


An Extended Standard model and its Higgs geometry from the matrix model

Harold Steinacker (Speaker)

14 Feb 2014

Activity: Talks and presentationsTalk or oral contributionOther


Emergent space-time and gravity in the IIB model

Harold Steinacker (Speaker)

10 Jun 2013

Activity: Talks and presentationsTalk or oral contributionOther


Compactified extra dimensions in matrix models

Harold Steinacker (Speaker)

25 May 2013

Activity: Talks and presentationsTalk or oral contributionOther


Towards brane-worlds in Yang-Mills matrix models

Harold Steinacker (Speaker)

27 Feb 2013

Activity: Talks and presentationsTalk or oral contributionOther


Matrix models, noncommutative gauge theory, and gravity

Harold Steinacker (Speaker)

18 Jul 2011

Activity: Talks and presentationsTalk or oral contributionOther


Matrix models, noncommutative gauge theory and emergent geometry

Harold Steinacker (Invited speaker)

14 Jun 2011

Activity: Talks and presentationsTalk or oral contributionOther


Matrix models, noncommutative gauge theory and emergent geometry

Harold Steinacker (Speaker)

14 Jun 2011

Activity: Talks and presentationsTalk or oral contributionOther


From matrix models to gauge theory and gravity

Harold Steinacker (Speaker)

17 May 2011

Activity: Talks and presentationsTalk or oral contributionOther


Von Matrix-Modellen zur Theorie der fundamentalen Wechselwirkungen

Harold Steinacker (Speaker)

13 May 2011

Activity: Talks and presentationsTalk or oral contributionOther


Yang-Mills matrix models, gauge theory, and gravity

Harold Steinacker (Invited speaker)

25 Mar 2011

Activity: Talks and presentationsTalk or oral contributionOther


Yang-Mills matrix models, gauge theory, and gravity

Harold Steinacker (Speaker)

25 Mar 2011

Activity: Talks and presentationsTalk or oral contributionOther


Non-commutative geometry and matrix models

Harold Steinacker (Speaker)

4 Mar 2011

Activity: Talks and presentationsTalk or oral contributionOther


Yang-Mills Matrix Models, Noncommutative Gauge Theory, and Gravity

Harold Steinacker (Speaker)

2 Mar 2011

Activity: Talks and presentationsTalk or oral contributionOther


Yang-Mills Matrix Models, Noncommutative Gauge Theory, and Gravity

Harold Steinacker (Speaker)

28 Feb 2011

Activity: Talks and presentationsTalk or oral contributionOther


Branes, N=4 gauge theory and gravity from the IIB matrix model

Harold Steinacker (Speaker)

23 Feb 2011

Activity: Talks and presentationsTalk or oral contributionOther


Branes, N=4 gauge theory and gravity from the IIB matrix model

Harold Steinacker (Speaker)

22 Feb 2011

Activity: Talks and presentationsTalk or oral contributionOther


Emergent (noncommutative) geometry and gravity from Yang-Mills matrix models

Harold Steinacker (Speaker)

29 Sep 2010

Activity: Talks and presentationsTalk or oral contributionOther


Matrix models, non-commutative geometry, and gravity

Harold Steinacker (Speaker)

13 Sep 2010

Activity: Talks and presentationsTalk or oral contributionOther


Emergent gravity from Yang-Mills matrix models

Harold Steinacker (Speaker)

11 Sep 2010

Activity: Talks and presentationsTalk or oral contributionOther


Reconciling Cosmology with Quantum Mechanics through Emergent Gravity

Harold Steinacker (Speaker)

6 Jul 2009

Activity: Talks and presentationsTalk or oral contributionOther


Dynamical noncommutative spaces, matrix models and gravity

Harold Steinacker (Speaker)

29 Sep 2008

Activity: Talks and presentationsTalk or oral contributionOther


Dynamical quantum spaces, matrix models and gravity

Harold Steinacker (Invited speaker)

30 Jun 2008

Activity: Talks and presentationsTalk or oral contributionOther


Mathematical Physics

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1090 Wien
Room: 3516

T: +43-1-4277-51503

harold.steinacker@univie.ac.at