Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Roberts, Matthew M."'
We study $D=11$ supergravity solutions which are dual to one-dimensional superconformal defects in $d=3$ SCFTs. We consider defects in ABJM theory with monodromy for $U(1)^4\subset SO(8)$ global symmetry, as well as in $\mathcal{N}=2$ mABJM SCFT, whi
Externí odkaz:
http://arxiv.org/abs/2408.11088
We study type IIB supergravity solutions that are dual to two-dimensional superconformal defects in $d=4$ SCFTs which preserve $\mathcal{N}=(0,2)$ supersymmetry. We consider solutions dual to defects in $\mathcal{N}=4$ SYM theory that have non-trivia
Externí odkaz:
http://arxiv.org/abs/2405.06014
Autor:
Roberts, Matthew M., Wiseman, Toby
We consider the tight-binding model of graphene with slowly spatially varying hopping functions. We develop a low energy approximation as a derivative expansion in a Dirac spinor that is perturbative in the hopping function deformation. The leading d
Externí odkaz:
http://arxiv.org/abs/2305.08897
We construct a new class of supersymmetric $AdS_3\times Y_7$ solutions of type IIB supergravity, where $Y_7$ is an $S^5$ fibration over a spindle, which are dual to $d=2$, $\mathcal{N}=(0,2)$ SCFTs. The solutions are constructed in a sub-truncation o
Externí odkaz:
http://arxiv.org/abs/2207.06427
Autor:
Roberts, Matthew M., Wiseman, Toby
Undistorted monolayer graphene has energy bands which cross at protected Dirac points. It elastically deforms and much research has assumed the Dirac description persists, now in a curved space and coupled to a gauge field related to lattice strain.
Externí odkaz:
http://arxiv.org/abs/2112.09144
We construct a continuous one parameter family of $AdS_4\times S^1\times S^5$ S-fold solutions of type IIB string theory which have nontrivial $SL(2,\mathbb{Z})$ monodromy in the $S^1$ direction. The solutions span a subset of a conformal manifold th
Externí odkaz:
http://arxiv.org/abs/2103.15201
Autor:
Arav, Igal, Cheung, K. C. Matthew, Gauntlett, Jerome P., Roberts, Matthew M., Rosen, Christopher
We construct infinite new classes of $AdS_4\times S^1\times S^5$ solutions of type IIB string theory which have non-trivial $SL(2,\mathbb{Z})$ monodromy along the $S^1$ direction. The solutions are supersymmetric and holographically dual, generically
Externí odkaz:
http://arxiv.org/abs/2101.07264
Autor:
Arav, Igal, Cheung, K. C. Matthew, Gauntlett, Jerome P., Roberts, Matthew M., Rosen, Christopher
We study mass deformations of $\mathcal{N}=4$, $d=4$ SYM theory that are spatially modulated in one spatial dimension and preserve some residual supersymmetry. We focus on generalisations of $\mathcal{N}=1^*$ theories and show that it is also possibl
Externí odkaz:
http://arxiv.org/abs/2007.15095
Autor:
Arav, Igal, Cheung, K. C. Matthew, Gauntlett, Jerome P., Roberts, Matthew M., Rosen, Christopher
We construct gravitational solutions that holographically describe two different $d=4$ SCFTs joined together at a co-dimension one, planar RG interface and preserving $d=3$ superconformal symmetry. The RG interface joins $\mathcal{N}=4$ SYM theory on
Externí odkaz:
http://arxiv.org/abs/2007.07891
Autor:
Anderson, Louise, Roberts, Matthew M.
We construct new families of deformed supersymmetric field theories which break space-time symmetries but preserve half of the original supersymmetry. We do this by writing deformations as couplings to background multiplets. In many cases it is impor
Externí odkaz:
http://arxiv.org/abs/1912.08961