132 citations · 1.2k across the 44 of their papers we have counts for
44 papers
Hamiltonian birefringence and Born-Infeld limits
Luca Mezincescu, Jorge G. Russo, Paul K. Townsend
Using Hamiltonian methods, we find six relativistic theories of nonlinear electrodynamics for which plane wave perturbations about a constant uniform background are not birefringen…
On chiral bosons in 2D and 6D
Luca Mezincescu, Paul K. Townsend
In the Hamiltonian formulation of chiral 2k-form electrodynamics, the 2k-form potential on the (4k+1)-space is defined up to the addition of either (i) a closed -form or (ii) a…
Global Symmetries of Quaternion-Khler Supersymmetric Mechanics
Evgeny Ivanov, Luca Mezincescu
We analyze the global symmetries of supersymmetric mechanics involving -dimensional Quaternion-Kähler (QK) sigma models on projective spaces $\mathbb{H}{\rm H…
DBI in the IR
Luca Mezincescu, Paul K. Townsend
The IR limit of a planar static D3-brane in AdS5 x S5 is a tensionless D3-brane at the AdS horizon, with dynamics governed by a strong-field limit of the Dirac-Born-Infeld action a…
Quaternion-Kähler N=4 Supersymmetric Mechanics
Evgeny Ivanov, Luca Mezincescu
Using the N=4, 1D harmonic superspace approach, we construct a new type of N=4 supersymmetric mechanics involving 4n-dimensional Quaternion-Kähler (QK) 1D sigma models as the boson…
Tachyons in the Galilean limit
Carles Batlle, Joaquim Gomis, Luca Mezincescu +1
The Souriau massless Galilean particle of "colour" and spin is shown to be the Galilean limit of the Souriau tachyon of mass and spin . We compare and contrast…