Physics Graduate Study - Which Area?

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SUMMARY

The discussion centers on a physics graduate seeking guidance on selecting a research area for a PhD in theoretical physics. The individual has a strong background in Quantum Field Theory (QFT), General Relativity (GR), and cosmology, and is considering fields such as cosmology, black holes, and quantum gravity. Key concerns include identifying promising research areas and understanding the competitiveness of various topics. The participant is advised to explore major physics journals for insights into trending research topics.

PREREQUISITES
  • Understanding of Quantum Field Theory (QFT)
  • Familiarity with General Relativity (GR)
  • Knowledge of cosmology and astrophysics
  • Basic concepts of mathematical physics, including non-commutative geometry
NEXT STEPS
  • Research current trends in cosmology and quantum gravity through major physics journals
  • Investigate the competitiveness of research areas such as black holes and dark matter
  • Explore the implications of symmetry breaking and axions in physics beyond the Standard Model
  • Review literature on the foundations of quantum mechanics and string theory for broader context
USEFUL FOR

This discussion is beneficial for graduate students in physics, particularly those interested in theoretical physics, cosmology, and emerging research areas within the field.

Jakub Supel
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Hi everyone,

For many years I have been planning to become a theoretical physicist. If everything goes well, next year I will be graduating with a MMath, having studied QFT, GR, cosmology, particle physics, black holes, differential geometry, etc. This fall I am going to apply for a PhD in theoretical physics. My primary concern and a cause of significant uncertainty is the area of future study and research (I think it is reasonable to assume that the choice of area will define the institutions where I am going to apply) and therefore I would like to ask the wise community of this forum for suggestions and guidance related to finding or creating the main area of interest. :)

Do you think, for example, that reading reviews of the major topics in physics journals will be optimal? Moreover, which of the following fields do you think are worthy of pursuing? Which of these are promising and which of them - dead or too competitive?

Some of the topics in which I have interest:
Cosmology, Structure, with some aspects of Astrophysics
Cosmology, Inflation, the Early Universe
GR, Black Holes
Mathematical GR, twistors, non-commutative geometry etc.
QFT, physics beyond SM (symmetry breaking, axions?)
Quantum Gravity
Nature of DM and DE

Topics in which I have slightly less interest:
Experimental Particle Physics
String Theory
Foundations of QM
Supersymmetry
...something else?

I don't mind if some of my work involves numerical methods, but as this is not something I love doing, things like computational GR are not for me, I think.

So, to summarize, my questions are:

1. What should I do to discover a promising area?

2. Which area is worth pursuing at present - so that I could contribute something to it in the course of my PhD? :)
 
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