48 citations · 303 across the 15 of their papers we have counts for
15 papers
Nuclear decay anomalies as a signature of axion dark matter
Xin Zhang, Nick Houston, Tianjun Li
A number of nuclear decay anomalies have been reported in the literature, which purport to show periodic variations in the decay rates of certain radioisotopes. If these reports re…
Searching for axion dark matter with MeerKAT Radio Telescope
Yun-Fan Zhou, Nick Houston, Gyula I. G. Jozsa +11
Axions provide a natural and well-motivated dark matter candidate, with the capability to convert directly to photons in the presence of an electromagnetic field. A particularly co…
Searching for solar axions using data from the Sudbury Neutrino Observatory
Aagaman Bhusal, Nick Houston, Tianjun Li
We explore a novel detection possibility for solar axions, which relies only on their couplings to nucleons, via the axion-induced dissociation of deuterons into their constituent…
Axion and dark photon limits from Crab Nebula high energy gamma-rays
Xiao-Jun Bi, Yu Gao, Junguang Guo +4
The observation of cosmic sub-PeV gamma-rays from the Crab Nebula opens up the possibility of testing cosmic ray photon transparency at the multi-hundred TeV scale. Assuming no dev…
A detailed exploration of the EDGES 21 cm absorption anomaly and axion-induced cooling
Chuang Li, Nick Houston, Tianjun Li +2
The EDGES collaboration's observation of an anomalously strong 21 cm absorption feature around the cosmic dawn era has energised the cosmological community by suggesting a novel si…
Natural explanation for 21cm absorption signals via axion-induced cooling
Nick Houston, Chuang Li, Tianjun Li +2
The EDGES Collaboration has reported an anomalously strong 21cm absorption feature corresponding to the era of first star formation, which may indirectly betray the influence of da…
A new solar neutrino channel for grand-unification monopole searches
Nick Houston, Tianjun Li, Chen Sun
We identify a previously untapped discovery channel for grand-unification monopoles, arising from their ability to catalyse the direct decay of protons into monoenergetic 459 MeV a…
GUT monopoles, the Witten effect and QCD axion phenomenology
Nick Houston, Tianjun Li
Taken individually, magnetic monopoles and axions are both well-motivated aspects of physics beyond the Standard Model. We demonstrate that by virtue of the Witten effect, their in…
Supersymmetric, fermionic solutions in three-dimensional supergravity
N. Houston
Building upon known supersymmetric backgrounds, we derive novel half-BPS fermionic solutions in three-dimensional supergravity. By virtue of an essential dependence on fermionic de…
Fermionic instantons
N. Houston
We demonstrate the existence of a broad class of non-perturbative fermionic solutions to the Euclidean supergravity equations of motion, which are half-BPS and nonsingular, possess…
Gravitino condensation, supersymmetry breaking and inflation
N. Houston
Motivated by dualistic considerations of the reality of quark condensation in quantum chromodynamics, and the connections of supergravity to the exotic physics of string and M-theo…
Inflation via Gravitino Condensation in Dynamically Broken Supergravity
Jean Alexandre, Nick Houston, Nick E. Mavromatos
Gravitino-condensate-induced inflation via the super-Higgs effect is a UV-motivated scenario for both inflating the early universe and breaking local supersymmetry dynamically, ent…
Starobinsky-type Inflation in Dynamical Supergravity Breaking Scenarios
Jean Alexandre, Nick Houston, Nick E. Mavromatos
In the context of dynamical breaking of local supersymmetry (supergravity), including the Deser-Zumino super-Higgs effect, for the simple but quite representative cases of N=1, D=4…
Dynamical Supergravity Breaking via the Super-Higgs Effect Revisited
Jean Alexandre, Nick Houston, Nick E. Mavromatos
We investigate the dynamical breaking of local supersymmetry (supergravity), including the Deser-Zumino super-Higgs effect, via the corresponding one-loop effective potential for t…
Dark dynamic acousto-optic ring lattices for ultracold atoms
N. Houston, E. Riis, A. S. Arnold
We demonstrate the optical generation of dynamic dark optical ring lattices, which do not require Laguerre-Gauss beams, large optical coherence lengths or interferometric stability…