Quantum Technology Initiative Journal Club

Thursday 22 Oct 2026, 16:00 → 17:00 Europe/Zurich

513/R-070 - Openlab Space (CERN)

Cenk Tüysüz (CERN), Michele Grossi (CERN)

Weekly Journal Club meetings organised in the framework of the CERN Quantum Technology Initiative (QTI) to present and discuss scientific papers in the field of quantum science and technology. The goal is to help researchers keep track of current findings and walk away with ideas for their own research. Some previous knowledge of quantum physics would be helpful, but is not required to follow the talks.

To propose a paper for discussion, contact: michele.grossi@cern.ch

CERN QTI Journal CLUB

Conveners: Cenk Tüysüz (CERN), Dr Michele Grossi (CERN)

1 A quantum algorithm for the n-gluon MHV scattering amplitude

Abstract:
We propose a quantum algorithm for computing the n-gluon maximally helicity violating (MHV) tree-level scattering amplitude. We revisit a newly proposed method for unitarisation of non-unitary operations and present how this implementation can be used to create quantum gates responsible for the color and kinematic factors of the gluon scattering amplitude. As a proof-of-concept, we detail the full conceptual algorithm that yields the squared amplitude and implement the corresponding building blocks on simulated noiseless quantum circuits for n = 4 to analyze its performance. The algorithm is found to perform well with parameter optimizations, suggesting it to be a good candidate for implementing on quantum computers also for higher multiplicities.

Speaker: Erik Bashore (University of Bergen)