All Outputs (35)

Quantum communications and quantum metrology in the spacetime of a rotating planet (2017)
Journal Article

We study how quantum systems that propagate in the spacetime of a rotating planet are affected by the curved background. Spacetime curvature affects wavepackets of photons propagating from Earth to a satellite, and the changes in the wavepacket encod... Read More about Quantum communications and quantum metrology in the spacetime of a rotating planet.

Smooth and sharp creation of a pointlike source for a (3+1)-dimensional quantum field (2017)
Journal Article

We analyze the smooth and sharp creation of a pointlike source for a quantized massless scalar field in (3+1)-dimensional Minkowski spacetime, as a model for the breakdown of correlations that has been proposed to occur at the horizon of an evaporati... Read More about Smooth and sharp creation of a pointlike source for a (3+1)-dimensional quantum field.

Unruh-DeWitt detector’s response to fermions in flat spacetimes (2016)
Journal Article

We examine an Unruh-DeWitt particle detector that is coupled linearly to the scalar density of a massless Dirac field in Minkowski spacetimes of dimension d≥2 and on the static Minkowski cylinder in spacetime dimension two, allowing the detector’s mo... Read More about Unruh-DeWitt detector’s response to fermions in flat spacetimes.

Waiting for Unruh (2016)
Journal Article

How long does a uniformly accelerated observer need to interact with a quantum field in order to record thermality in the Unruh temperature? We address this question for a pointlike Unruh–DeWitt detector, coupled linearly to a real Klein–Gordon field... Read More about Waiting for Unruh.

Low energy Lorentz violation from modified dispersion at high energies (2016)
Journal Article

Smooth and sharp creation of a Dirichlet wall in 1+1 quantum field theory: how singular is the sharp creation limit? (2015)
Journal Article

We present and utilize a simple formalism for the smooth creation of boundary conditions within relativistic quantum field theory. We consider a massless scalar field in (1 + 1)-dimensional flat spacetime and imagine smoothly transitioning from there... Read More about Smooth and sharp creation of a Dirichlet wall in 1+1 quantum field theory: how singular is the sharp creation limit?.

Ideal clocks - A convenient fiction (2015)
Journal Article

© 2015 IOP Publishing Ltd. We show that no device built according to the rules of quantum field theory can measure proper time along its path. Highly accelerated quantum clocks experience the Unruh effect, which inevitably influences their time rate.... Read More about Ideal clocks - A convenient fiction.

(1+1)D calculation provides evidence that quantum entanglement survives a firewall (2015)
Journal Article

We analyze how preexisting entanglement between two Unruh-DeWitt particle detectors evolves when one of the detectors falls through a Rindler firewall in (1+1)-dimensional Minkowski space. The firewall effect is minor and does not wash out the detect... Read More about (1+1)D calculation provides evidence that quantum entanglement survives a firewall.

Superconducting circuit boundary conditions beyond the dynamical Casimir effect (2015)
Journal Article

© 2015 American Physical Society. We study analytically the time-dependent boundary conditions of superconducting microwave circuit experiments in the high plasma frequency limit, in which the conditions are Robin-type and relate the value of the fie... Read More about Superconducting circuit boundary conditions beyond the dynamical Casimir effect.

Renormalized vacuum polarization on rotating warped AdS3 black holes (2015)
Journal Article

We compute the renormalized vacuum polarization of a massive scalar field in the Hartle-Hawking state on (2+1)-dimensional rotating, spacelike stretched black hole solutions to topologically massive gravity, surrounded by a Dirichlet mirror that make... Read More about Renormalized vacuum polarization on rotating warped AdS3 black holes.

Onset and decay of the 1 + 1 Hawking–Unruh effect: what the derivative-coupling detector saw (2014)
Journal Article

We study an Unruh–DeWitt particle detector that is coupled to the proper time derivative of a real scalar field in 1 + 1 spacetime dimensions. Working within first-order perturbation theory, we cast the transition probability into a regulator- free f... Read More about Onset and decay of the 1 + 1 Hawking–Unruh effect: what the derivative-coupling detector saw.

Unruh-DeWitt detector response across a Rindler firewall is finite (2014)
Journal Article

We investigate a two-level Unruh-DeWitt detector coupled to a massless scalar field or its proper time derivative in (1 + 1)-dimensional Minkowski spacetime, in a quantum state whose correlation structure across the Rindler horizon mimics the station... Read More about Unruh-DeWitt detector response across a Rindler firewall is finite.

Unruh-DeWitt detector response along static and circular-geodesic trajectories for Schwarzschild-anti-de Sitter black holes (2014)
Journal Article

© 2014 American Physical Society. We present novel methods to numerically address the problem of characterizing the response of particle detectors in curved spacetimes. These methods allow for the integration of the Wightman function, at least in pri... Read More about Unruh-DeWitt detector response along static and circular-geodesic trajectories for Schwarzschild-anti-de Sitter black holes.

Particle detectors and the zero mode of a quantum field (2014)
Journal Article

We study the impact of the zero mode of a quantum field on the evolution of a particle detector. For a massless scalar field in a periodic cavity, we show that the impact of the zero mode on the Unruh-DeWitt detector and its derivative-coupling gener... Read More about Particle detectors and the zero mode of a quantum field.

Colliding branes and big crunches (2011)
Journal Article

We examine the global structure of colliding domain walls in AdS spacetime and come to the conclusion that singularities forming from such collisions are of the big-crunch type rather than that of a black brane.