6.6k citations · 23.3k across the 83 of their papers we have counts for
16 papers · 1 filter
String Axiverse
Asimina Arvanitaki, Savas Dimopoulos, Sergei Dubovsky +2
String theory suggests the simultaneous presence of many ultralight axions possibly populating each decade of mass down to the Hubble scale 10^-33eV. Conversely the presence of suc…
N-flation
Savas Dimopoulos, Shamit Kachru, John McGreevy +1
The presence of many axion fields in four-dimensional string vacua can lead to a simple, radiatively stable realization of chaotic inflation.
Predictive Landscapes and New Physics at a TeV
Nima Arkani-Hamed, Savas Dimopoulos, Shamit Kachru
We propose that the Standard Model is coupled to a sector with an enormous landscape of vacua, where only the dimensionful parameters--the vacuum energy and Higgs masses--are finel…
Splitting Supersymmetry in String Theory
I. Antoniadis, S. Dimopoulos
We point out that type I string theory in the presence of internal magnetic fields provides a concrete realization of split supersymmetry. To lowest order, gauginos are massless wh…
Supersymmetric Unification Without Low Energy Supersymmetry And Signatures for Fine-Tuning at the LHC
Nima Arkani-Hamed, Savas Dimopoulos
The cosmological constant problem is a failure of naturalness and suggests that a fine-tuning mechanism is at work, which may also address the hierarchy problem. An example -- supp…
Discretuum versus Continuum Dark Energy
Savas Dimopoulos, Scott Thomas
The dark energy equation of state for theories with either a discretuum or continuum distribution of vacua is investigated. In the discretuum case the equation of state is constant…