PhD Comprehensive Exam | Hyungjin KimExport this event to calendar

Wednesday, July 10, 2019 2:00 PM EDT

MC 6460<--break->

Candidate

Hyungjin Kim | Applied Math, University of Waterloo

Title

Addressing the Unresolved Questions of Early Universe

 Abstract

In this presentation, I will talk about two different methods of answering unresolved questions of our early unvierse. I will use the theory of Cuscuton to avoid the Singularity problem that the current inflationary models face. This will involve writing a model where the universe undergoes a 'bounce' instead of a phase of an accelerated expansion. Then I will talk about systematically building a tool to better understand early universe, the Effective Field Theory of Inflation. Using this tool, I will explain how higher order corrections to the Lorentzian dispersion relation arises, and will go on to show which regions in parameter space such theories are valid. I will also explain the future works needed to be done on these theories.

S M T W T F S
27
28
29
30
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
  1. 2024 (55)
    1. May (3)
    2. April (5)
    3. March (18)
    4. February (15)
    5. January (14)
  2. 2023 (96)
    1. December (6)
    2. November (11)
    3. October (7)
    4. September (8)
    5. August (12)
    6. July (5)
    7. June (6)
    8. May (5)
    9. April (14)
    10. March (7)
    11. February (8)
    12. January (7)
  3. 2022 (106)
  4. 2021 (44)
  5. 2020 (32)
  6. 2019 (86)
  7. 2018 (70)
  8. 2017 (72)
  9. 2016 (76)
  10. 2015 (77)
  11. 2014 (67)
  12. 2013 (49)
  13. 2012 (19)
  14. 2011 (4)
  15. 2009 (5)
  16. 2008 (8)