# Unruh Effect in nonlocal field theories

@article{Kajuri2017UnruhEI, title={Unruh Effect in nonlocal field theories}, author={Nirmalya Kajuri}, journal={Physical Review D}, year={2017}, volume={95}, pages={101701} }

We study the Unruh Effect for a wide class of nonlocal theories. Using the approach of Bogoliubov coefficients, we show that the Unruh Effect remains entirely unmodified in these theories. However, for those nonlocal theories which incorporate a minimal length, the approach using Unruh-DeWitt detectors predicts a modification in the Unruh Effect. Previous work shows that this modification may even be drastic. This appears contradictory with two apparently equivalent methods giving different…

## 13 Citations

### Modified Wightman function and Unruh effect in nonlocal field theories

- Physics
- 2018

The nonlocal field theory commonly requires a minimal length, and so it appears to formulate the nonlocal theory in terms of the doubly special relativity which makes the speed of light and the…

### O ct 2 01 7 Universality of the Unruh effect

- Computer Science
- 2018

This paper proves the universal nature of the Unruh effect in a general class of weakly non-local field theories and solves the tension between two conflicting claims published in literature.

### Universality of the Unruh effect

- Physics
- 2018

In this paper we prove the universal nature of the Unruh effect in a general class of weakly nonlocal field theories. At the same time we solve the tension between two conflicting claims published in…

### Entanglement entropy of nonlocal theories in AdS spacetimes

- PhysicsPhysical Review D
- 2019

We investigate the effect of non-locality on entanglement entropy in anti-de Sitter space-time. We compute entanglement entropy of a nonlocal field theory in anti-de Sitter space-time and find…

### Ghost-free modification of the Polyakov action and Hawking radiation

- PhysicsPhysical Review D
- 2019

In this paper we discuss possible effects of non-locality in black hole spacetimes. We consider a two-dimensional theory in which the action describing matter is a ghost-free modification of the…

### Quantum scattering on a delta potential in ghost-free theory

- Physics, MathematicsPhysics Letters B
- 2018

### Non-locality effect on the entanglement entropy in de Sitter

- PhysicsJournal of Cosmology and Astroparticle Physics
- 2019

We investigate the effect of infrared non-locality on the entanglement between two causally separated open-charts in the de Sitter space-time. Inspired by the work of Maldacena and Pimentel who gave…

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