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- Agostino Patella
- 2006

The orientifold planar equivalence is the equivalence in the large-N limit of the bosonic sectors of the super Yang-Mills and the QCD with a quark in the antisymmetric representation. I give a sketch of the proof of the orientifold planar equivalence in the strong-coupling and large-mass phase on the lattice. It is still matter of discussion, if its… (More)

We study quenched SU(N) gauge theories with fermions in the two-index symmetric, antisymmetric and the adjoint representations. Our main motivation is to check whether at large number of colours those theories become non-perturbatively equivalent. We prove the equivalence assuming that the charge-conjugation symmetry is not broken in pure Yang-Mills theory.… (More)

- Ed Bennett, Luigi Del Debbio, +4 authors Antonio Rago
- ArXiv
- 2014

- Francesco Capponi, Luigi Del Debbio, Agostino Patella, Antonio Rago
- 2015

We employ a new strategy for a non perturbative determination of the renormalized energy momentum tensor. The strategy is based on the definition of suitable lattice Ward identities probed by observables computed along the gradient flow. The new set of identities exhibits many interesting qualities, arising from the UV finiteness of flowed composite… (More)

In a space with some sufficiently small compact dimension (with non-trivial cycles) and with periodic boundary conditions for the fermions, the charge conjugation (C), spatial parity (P), time reversal (T) and CPT symmetries are spontaneously broken in QCD. We have investigated what are the physical consequences of the breaking of these discrete symmetries,… (More)

We discuss the lattice formulation of gauge theories with fermions in arbitrary representations of the color group, and present the implementation of the RHMC algorithm for simulating dynamical Wilson fermions. A first dataset is presented for the SU(2) gauge theory with two fermions in the adjoint representation, which has been proposed as a possible… (More)

We discuss the dependence of observables on the chemical potential in ’t Hooft’s large-N QCD. To this end, we use the worldline formalism to expand the fermionic determinant in powers of 1=N. We consider the hadronic as well as the deconfining phase of the theory. We discuss the origin of the sign problem in the worldline approach and elaborate on the… (More)

The recently introduced orientifold planar equivalence is a promising tool for solving nonperturbative problems in QCD. One of the predictions of orientifold planar equivalence is that the chiral condensates of a theory with N f flavours of Dirac fermions in the symmetric (or antisymmetric) representation and N f flavours of Majorana fermions in the adjoint… (More)

- Ed Bennett, Biagio Lucini, +4 authors Antonio Rago
- 2016 International Conference on High Performance…
- 2016

Lattice Quantum ChromoDynamics (QCD), and by extension its parent field, Lattice Gauge Theory (LGT), make up a significant fraction of supercomputing cycles worldwide. As such, it would be irresponsible not to evaluate machines' suitability for such applications. To this end, a benchmark has been developed to assess the performance of LGT applications on… (More)

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