Dr David Vegh

Profile

I did my undergraduate studies at Eötvös University in Budapest, spending a semester at Humboldt & the Free University of Berlin. I did my PhD at MIT. Then I was a postdoc at the Simons Center in Stony Brook, CERN, Institute for Advanced Study, Harvard University, Utrecht University before joining the Centre for Research in String Theory in 2017.

Undergraduate Teaching

I teach "Physical Dynamics" (SPA5304). I also offer 3rd-year, 4th-year and MSc research projects in the areas of string theory, black hole physics, and holography.

Research

Research Interests:

Our current understanding of Nature is centered around two theories: general relativity which describes classical gravity, and quantum field theory which describes the strong and electroweak interactions and various low-energy phenomena. Naive attempts to unify these two theories lead to insurmountable difficulties. Moreover, a unified theory would ideally explain recent cosmological observations such as the acceleration of the universe, dark matter, and cosmic inflation. This presents challenges to our understanding that must be addressed by new ideas.

In recent years it has become clear that gravity and quantum physics are not incompatible. On the contrary, they are intimately connected: the emergence of spacetime is thought to be related to the quantum entanglement of degrees of freedom in a “holographic dual” quantum system. However, the nature of this emergence is not fully understood and controlled toy models for emergent gravity would be extremely valuable. The main objective of my current research is to construct such models.

I am also interested in strongly correlated condensed matter systems which have no quasiparticle excitations.

Funding

STFC, Ernest Rutherford Fellowship 2017-2022, ST/P004334/1

Publications

• Blake M, Davison RA, Vegh D (2020). Horizon constraints on holographic Green’s functions. nameOfConference

  
  

  DOI: 10.1007/JHEP01(2020)077

  
  

  QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/62642
• De Boer J, Llabrés E, Pedraza JF et al. (2018). Chaotic Strings in AdS/CFT. nameOfConference

  
  

  DOI: 10.1103/PhysRevLett.120.201604

  
  

  QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/39529
• VEGH D (2018). Segmented strings coupled to a B-field. nameOfConference

  
  

  DOI: 10.1007/JHEP04(2018)088

  
  

  QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/36719
• VEGH D (2018). The broken string in Anti-de Sitter space. nameOfConference

  
  

  DOI: 10.1007/JHEP02(2018)045

  
  

  QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/36175
• Blake M, Tong D, Vegh D (2014). Holographic Lattices Give the Graviton an Effective Mass. nameOfConference

  
  

  DOI: 10.1103/PhysRevLett.112.071602

  
  

  QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/31187
• Faulkner T, Iqbal N, Liu H et al. (2013). Charge transport by holographic Fermi surfaces. nameOfConference

  
  

  DOI: 10.1103/PhysRevD.88.045016

  
  

  QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/35445
• Faulkner T, Liu H, McGreevy J et al. (2011). Emergent quantum criticality, Fermi surfaces, and AdS2. nameOfConference

  
  

  DOI: 10.1103/PhysRevD.83.125002

  
  

  QMRO: qmroHref
• Faulkner T, Iqbal N, Liu H et al. (2011). Holographic non-Fermi-liquid fixed points. nameOfConference

  
  

  DOI: 10.1098/rsta.2010.0354

  
  

  QMRO: qmroHref
• Liu H, McGreevy J, Vegh D (2011). Non-Fermi liquids from holography. nameOfConference

  
  

  DOI: 10.1103/PhysRevD.83.065029

  
  

  QMRO: qmroHref
• Hartnoll SA, Hofman DM, Vegh D (2011). Stellar spectroscopy: Fermions and holographic Lifshitz criticality. nameOfConference

  
  

  DOI: 10.1007/JHEP08(2011)096

  
  

  QMRO: qmroHref
• Faulkner T, Iqbal N, Liu H et al. (2010). Strange metal transport realized by gauge/gravity duality. nameOfConference

  
  

  DOI: 10.1126/science.1189134

  
  

  QMRO: qmroHref
• Hanany A, Vegh D, Zaffaroni A (2009). Brane tilings and M2 branes. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2009/03/012

  
  

  QMRO: qmroHref
• Vegh D, McGreevy J (2008). Semi-flatland. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2008/10/068

  
  

  QMRO: qmroHref
• Butti A, Forcella D, Hanany A et al. (2007). Counting chiral operators in quiver gauge theories. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2007/11/092

  
  

  QMRO: qmroHref
• Hanany A, Vegh D (2007). Quivers, tilings, branes and rhombi. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2007/10/029

  
  

  QMRO: qmroHref
• Franco S, Hanany A, Krefl D et al. (2007). Dimers and orientifolds. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2007/09/075

  
  

  QMRO: qmroHref
• Franco S, Vegh D (2006). Moduli spaces of gauge theories from Dimer models: Proof of the correspondence. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2006/11/054

  
  

  QMRO: qmroHref
• Hanany A, Herzog CP, Vegh D (2006). Brane tilings and exceptional collections. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2006/07/001

  
  

  QMRO: qmroHref
• Franco S, Hanany A, Vegh D et al. (2006). Brane dimers and quiver gauge theories. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2006/01/096

  
  

  QMRO: qmroHref
• Franco S, Hanany A, Martelli D et al. (2006). Gauge theories from toric geometry and brane tilings. nameOfConference

  
  

  DOI: 10.1088/1126-6708/2006/01/128

  
  

  QMRO: qmroHref