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Averaged null energy condition and quantum inequalities in curved spacetime

- Eleni-Alexandra Kontou
- Physics
- 22 July 2015

The Averaged Null Energy Condition (ANEC) states that the integral along a complete null geodesic of the projection of the stress-energy tensor onto the tangent vector to the geodesic cannot be… Expand

Energy conditions in general relativity and quantum field theory

- Eleni-Alexandra Kontou, K. Sanders
- Physics
- 3 March 2020

This review summarizes the current status of the energy conditions in general relativity and quantum field theory. We provide a historical review and a summary of technical results and applications,… Expand

Proof of the averaged null energy condition in a classical curved spacetime using a null-projected quantum inequality

- Eleni-Alexandra Kontou, K. Olum
- Physics
- 1 July 2015

Quantum inequalities are constraints on how negative the weighted average of the renormalized stress-energy tensor of a quantum field can be. A null-projected quantum inequality can be used to prove… Expand

A singularity theorem for Einstein–Klein–Gordon theory

- P. Brown, C. Fewster, Eleni-Alexandra Kontou
- MathematicsGeneral Relativity and Gravitation
- 29 March 2018

Hawking’s singularity theorem concerns matter obeying the strong energy condition (SEC), which means that all observers experience a nonnegative effective energy density (EED), thereby guaranteeing… Expand

Effects on the CMB from Compactification Before Inflation

- Eleni-Alexandra Kontou, J. Blanco-Pillado, M. Hertzberg, A. Masoumi
- Physics
- 6 January 2017

Many theories beyond the Standard Model include extra dimensions, though these have yet to be directly observed. In this work we consider the possibility of a compactification mechanism which both… Expand

Bayes Theorem and its Recent Applications

- Eleni-Alexandra Kontou, N. Stylianides
- Mathematics
- 18 May 2020

Individuals who have studied maths to a specific level have come across Bayes’ Theorem or Bayes Formula. Bayes’ Theorem has many applications in areas such as mathematics, medicine, finance,… Expand

Averaged null energy condition in a classical curved background

- Eleni-Alexandra Kontou, K. Olum
- Physics
- 11 December 2012

The Averaged Null Energy Condition (ANEC) states that the integral along a complete null geodesic of the projection of the stress-energy tensor onto the tangent vector to the geodesic cannot be… Expand

Quantum inequality in spacetimes with small curvature

- Eleni-Alexandra Kontou, K. Olum
- Physics, Mathematics
- 2 October 2014

Quantum inequalities bound the extent to which weighted time averages of the renormalized energy density of a quantum field can be negative. They have mostly been proved in flat spacetime, but we… Expand

A new derivation of singularity theorems with weakened energy hypotheses

- C. Fewster, Eleni-Alexandra Kontou
- MathematicsClassical and Quantum Gravity
- 31 July 2019

The original singularity theorems of Penrose and Hawking were proved for matter obeying the Null Energy Condition or Strong Energy Condition respectively. Various authors have proved versions of… Expand

Quantum strong energy inequalities

- C. Fewster, Eleni-Alexandra Kontou
- PhysicsPhysical Review D
- 13 September 2018

Quantum energy inequalities (QEIs) express restrictions on the extent to which weighted averages of the renormalized energy density can take negative expectation values within a quantum field theory.… Expand

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