Multiparameter estimation in networked quantum sensors

TJ Proctor, PA Knott, JA Dunningham - Physical review letters, 2018 - APS
We introduce a general model for a network of quantum sensors, and we use this model to
consider the following question: When can entanglement between the sensors, and/or …

Speeding up squeezing with a periodically driven Dicke model

JT Reilly, SB Jäger, JD Wilson, J Cooper, S Eggert… - Physical Review …, 2024 - APS
We present a simple and effective method to create highly entangled spin states on a faster
timescale than that of the commonly employed one-axis twisting (OAT) model. We …

Split spin-squeezed Bose–Einstein condensates

Y **g, M Fadel, V Ivannikov, T Byrnes - New Journal of Physics, 2019 - iopscience.iop.org
We investigate and model a method for producing entanglement between two spatially
separated Bose–Einstein condensates (BECs). In our approach, a spin-polarized BEC is …

Remote state preparation of two-component Bose-Einstein condensates

M Chaudhary, M Fadel, EO Ilo-Okeke, AN Pyrkov… - Physical Review A, 2021 - APS
A protocol for remote state preparation is proposed for spin ensembles, where the aim is to
prepare a state with a given set of spin expectation values on a remote spin ensemble using …

[BOOK][B] Quantum atom optics: Theory and applications to quantum technology

T Byrnes, EO Ilo-Okeke - 2021 - books.google.com
The rapid development of quantum technologies has driven a revolution in related research
areas such as quantum computation and communication, and quantum materials. The first …

Macroscopic quantum information processing using spin coherent states

T Byrnes, D Rosseau, M Khosla, A Pyrkov… - Optics …, 2015 - Elsevier
Previously a new scheme of quantum information processing based on spin coherent states
of two component Bose–Einstein condensates was proposed (Byrnes et al. Phys. Rev. A 85 …

Theory of single-shot phase contrast imaging in spinor Bose-Einstein condensates

EO Ilo-Okeke, T Byrnes - Physical review letters, 2014 - APS
We introduce a theoretical framework for single-shot phase contrast imaging (PCI)
measurements of spinor Bose-Einstein condensates (BECs). Our model allows for the …

Emergent universality in a quantum tricritical Dicke model

Y Xu, H Pu - Physical Review Letters, 2019 - APS
We propose a generalized Dicke model that supports a quantum tricritical point. We map out
the phase diagram and investigate the critical behavior of the model through an exact low …

Full-Bloch-sphere teleportation of spinor Bose-Einstein condensates and spin ensembles

AN Pyrkov, T Byrnes - Physical Review A, 2014 - APS
Quantum teleportation is the transfer of quantum information between two locations by the
use of shared entanglement. Current teleportation schemes broadly fall under one of two …

Quantum teleportation of spin coherent states: beyond continuous variables teleportation

AN Pyrkov, T Byrnes - New Journal of Physics, 2014 - iopscience.iop.org
We introduce a quantum teleportation scheme that transfers a spin coherent state between
two locations using entanglement. In the scheme an unknown spin coherent state lying on …