2-9 July 2014
Valencia, Spain
Europe/Madrid timezone

Vacuum instability in holography

5 Jul 2014, 12:30
30m
Sala 8+9 ()

Sala 8+9

Oral presentation Formal Theory Developments Formal Theory Developments

Speaker

Prof. Koji Hashimoto (Osaka university / RIKEN)

Description

We analyze vacuum instability of strongly coupled gauge theories in a constant electric field using AdS/CFT correspondence. The model is the N = 2 1-flavor supersymmetric large Nc QCD in the strong ’t Hooft coupling limit. We calculate the Euler-Heisenberg effective Lagrangian L(E), which encodes the nonlinear response and the quantum decay rate of the vacuum in a background electric field E, from the complex D-brane action in AdS/CFT. We find that the decay rate given by ImL(E) becomes nonzero above a critical electric field set by the confining force between quarks. A large E expansion of Im L(E) is found to coincide with that of the Schwinger effects in QED, replacing its electron mass by the confining force.

Primary author

Prof. Koji Hashimoto (Osaka university / RIKEN)

Presentation Materials

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