8 papers
Analytic formulae for non-local magic in bipartite systems of qutrits and ququints
Giorgio Busoni, John Gargalionis, Ewan N. V. Wallace +1
We conjecture analytic expressions for the non-local magic of bipartite pure qudit states of prime local dimension. Our construction relies on the Schmidt-aligned state attaining t…
Non-local nonstabiliserness in Gluon and Graviton Scattering
John Gargalionis, Nathan Moynihan, Michael L. Reichenberg Ashby +3
The property of non-stabiliserness, or ``magic'', is of interest in quantum computing due to its role in developing fault-tolerant quantum algorithms with genuine computational adv…
An EFT approach to baryon number violation: lower limits on the new physics scale and correlations between nucleon decay modes
Arnau Bas i Beneito, John Gargalionis, Juan Herrero-Garcia +2
Baryon number is an accidental symmetry of the Standard Model at the Lagrangian level. Its violation is arguably one of the most compelling phenomena predicted by physics beyond th…
Squeezing Proton Decay and Neutrino Masses: Upper Bounds on Standard Model Extensions
Arnau Bas i Beneito, John Gargalionis, Juan Herrero-Garcia +1
Baryon and lepton number are excellent low-energy symmetries of the Standard Model (SM) that tightly constrain the form of its extensions. In this paper we investigate the possibil…
Linear Standard Model extensions in the SMEFT at one loop and Tera-Z
John Gargalionis, Jérémie Quevillon, Pham Ngoc Hoa Vuong +1
Linear Standard Model (SM) extensions, defined as new particles that can couple linearly to SM fields, form a motivated and finite set of simplified models for exploring phenomenol…
Spin versus Magic: Lessons from Gluon and Graviton Scattering
John Gargalionis, Nathan Moynihan, Sokratis Trifinopoulos +3
The quantum property of non-stabiliserness, also known as magic, plays a key role in designing quantum computing systems. How to produce, manipulate and enhance magic remains myste…