Computing the Spectrum of a Heterotic Flux Vacuum (2009)
Adams, Allan, Lapan, Joshua M.
We compute the massless spectra of a set of flux vacua of the heterotic string. The vacua we study include well-known non-Kahler T^2-fibrations over K3 with SU(3) structure and intrinsic torsion....
Orbifold Phases of Heterotic Flux Vacua (2009)
By studying phase transitions in supersymmetric gauge theories with Green-Schwarz anomaly cancellation, a natural relation is found between sigma models on certain non-Kahler manifolds with intrinsic...
Exact null tachyons from RG flows (2009)
Adams, Allan, Lawrence, Albion, Swanson, Ian
We construct exact 2d CFTs, corresponding to closed string tachyon and metric profiles invariant under shifts in a null coordinate, which can be constructed from any 2d renormalization group flow....
Heterotic Flux Vacua from Hybrid Linear Models (2009)
We construct hybrid linear models in which the chiral anomaly of a gauged linear sigma model is canceled by the classical anomaly of a gauged WZW model. Semi-classically, this corresponds to fibering...
Bloom, Joshua S., Holz, Daniel E., Hughes, Scott A., Menou, Kristen, Adams, Allan, Anderson, Scott F., ...
It is widely expected that the coming decade will witness the first direct detection of gravitational waves (GWs). The ground-based LIGO and Virgo GW observatories are being upgraded to advanced...
1/N Effects in Non-Relativistic Gauge-Gravity Duality (2008)
Adams, Allan, Maloney, Alexander, Sinha, Aninda, Vazquez, Samuel E.
We argue that higher-curvature terms in the gravitational Lagrangian lead, via non-relativistic gauge-gravity duality, to finite renormalization of the dynamical exponent of the dual conformal field...
Hot Spacetimes for Cold Atoms (2008)
Adams, Allan, Balasubramanian, Koushik, McGreevy, John
Building on our earlier work and that of Son, we construct string theory duals of non-relativistic critical phenomena at finite temperature and density. Concretely, we find black hole solutions of...
Signs of analyticity in fermion scattering (2008)
Adams, Allan, Jenkins, Alejandro, O'Connell, Donal
We show that the signs of the leading irrelevant interactions for Dirac fermions are constrained by the analytic structure of the S-matrix. If Regge behavior obtains, negative signs indicate the...
Linear Models for Flux Vacua (2006)
Adams, Allan, Ernebjerg, Morten, Lapan, Joshua M.
We construct worldsheet descriptions of heterotic flux vacua as the IR limits of N=2 gauge theories. Spacetime torsion is incorporated via a 2d Green-Schwarz mechanism in which a doublet of axions...
Causality, Analyticity and an IR Obstruction to UV Completion (2006)
Adams, Allan, Arkani-Hamed, Nima, Dubovsky, Sergei, Nicolis, Alberto, Rattazzi, Riccardo
We argue that certain apparently consistent low-energy effective field theories described by local, Lorentz-invariant Lagrangians, secretly exhibit macroscopic non-locality and cannot be embedded in...
Topological Heterotic Rings (2005)
Adams, Allan, Distler, Jacques, Ernebjerg, Morten
We prove the existence of topological rings in (0,2) theories containing non-anomalous left-moving U(1) currents by which they may be twisted. While the twisted models are not topological, their...
The Loop Group of E_8 and K-Theory from 11d (2002)
We examine the conjecture that an 11d E_8 bundle, appearing in the calculation of phases in the M-Theory partition function, plays a physical role in M-Theory, focusing on consequences for the...
Asia House, Greater Manchester (2001)
This cutaway drawing by Allan Adams shows the arrangement of floors and facilities in the warehouses built in Manchester in the late 19th and early 20th century. Internal hoists were often...
Asia House, Greater Manchester (2001)
This cutaway drawing by Allan Adams shows the arrangement of floors and facilities in the warehouses built in Manchester in the late 19th and early 20th century. Internal hoists were often...