37 citations · 211 across the 12 of their papers we have counts for
14 papers
Conditional Correlations and Principal Regression Analysis for Futures
Armine Karami, Raphael Benichou, Michael Benzaquen +1
We explore the effect of past market movements on the instantaneous correlations between assets within the futures market. Quantifying this effect is of interest to estimate and ma…
Agnostic Risk Parity: Taming Known and Unknown-Unknowns
Raphael Benichou, Yves Lempérière, Emmanuel Sérié +4
Markowitz' celebrated optimal portfolio theory generally fails to deliver out-of-sample diversification. In this note, we propose a new portfolio construction strategy based on sym…
The Hirota equation for string theory in AdS5xS5 from the fusion of line operators
Raphael Benichou
We present a perturbative derivation of the T-system that is believed to encode the exact spectrum of planar N=4 SYM. The T-system is understood as an operator identity between som…
Geometry of open strings ending on backreacting D3-branes
Raphael Benichou, John Estes
We investigate open string theory on backreacting D3-branes using a spacetime approach. We study in detail the half-BPS supergravity solutions describing open strings ending on D3-…
The fate of Newton's law in brane-world scenarios
Raphael Benichou, John Estes
We consider brane-world scenarios embedded into string theory. We find that the D-brane backreaction induces a large increase in the open string's proper length. Consequently the s…
First-principles derivation of the AdS/CFT Y-systems
Raphael Benichou
We provide a first-principles, perturbative derivation of the AdS5/CFT4 Y-system that has been proposed to solve the spectrum problem of N=4 SYM. The proof relies on the computatio…