Advances in space quantum communications

JS Sidhu, SK Joshi, M Gündoğan… - IET Quantum …, 2021 - Wiley Online Library
Concerted efforts are underway to establish an infrastructure for a global quantum Internet to
realise a spectrum of quantum technologies. This will enable more precise sensors, secure …

Massive quantum systems as interfaces of quantum mechanics and gravity

S Bose, I Fuentes, AA Geraci, SM Khan… - arXiv preprint arXiv …, 2023 - arxiv.org
The traditional view from particle physics is that quantum gravity effects should only become
detectable at extremely high energies and small length scales. Due to the significant …

Gravitational wave background from Standard Model physics: Complete leading order

J Ghiglieri, G Jackson, M Laine, Y Zhu - Journal of High Energy Physics, 2020 - Springer
A bstract We compute the production rate of the energy density carried by gravitational
waves emitted by a Standard Model plasma in thermal equilibrium, consistently to leading …

Quantum parameter estimation using multi-mode Gaussian states

D Šafránek, AR Lee, I Fuentes - New Journal of Physics, 2015 - iopscience.iop.org
Gaussian states are of increasing interest in the estimation of physical parameters because
they are easy to prepare and manipulate in experiments. In this article, we derive formulae …

Quantum memories for fundamental science in space

JM Mol, L Esguerra, M Meister… - Quantum Science …, 2023 - iopscience.iop.org
Investigating and verifying the connections between the foundations of quantum mechanics
and general relativity will require extremely sensitive quantum experiments. To provide …

[HTML][HTML] Gravitational waves as a new probe of Bose–Einstein condensate Dark Matter

PSB Dev, M Lindner, S Ohmer - Physics Letters B, 2017 - Elsevier
There exists a class of ultralight Dark Matter (DM) models which could give rise to a Bose–
Einstein condensate (BEC) in the early universe and behave as a single coherent wave …

Paradigm of warm quintessential inflation and production of relic gravity waves

MR Gangopadhyay, S Myrzakul, M Sami, MK Sharma - Physical Review D, 2021 - APS
We consider the framework of quintessential inflation in the warm background which is
caused by the dissipation of the scalar field energy density into relativistic degrees of …

Quantum estimation of the Schwarzschild spacetime parameters of the Earth

DE Bruschi, A Datta, R Ursin, TC Ralph, I Fuentes - Physical Review D, 2014 - APS
We propose a quantum experiment to measure with high precision the Schwarzschild
spacetime parameters of the Earth. The scheme can also be applied to measure distances …

Optimal probe states for the estimation of Gaussian unitary channels

D Šafránek, I Fuentes - Physical Review A, 2016 - APS
We construct a practical method for finding optimal Gaussian probe states for the estimation
of parameters encoded by Gaussian unitary channels. This method can be used for finding …

Influence of gravitational waves on quantum multibody states

J Yan, B Zhang - Physical Review D, 2023 - APS
Based on the freely-falling Unruh-Dewitt model, we study the influence of gravitational
waves on the quantum multibody states, ie, the twin-Fock (TF) state and the mixture of Dicke …