# Cooperative Effects in Closely Packed Quantum Emitters with Collective Dephasing.

@article{PrasannaVenkatesh2018CooperativeEI, title={Cooperative Effects in Closely Packed Quantum Emitters with Collective Dephasing.}, author={B. Prasanna Venkatesh and Mathieu L. Juan and Oriol Romero-Isart}, journal={Physical review letters}, year={2018}, volume={120 3}, pages={ 033602 } }

In a closely packed ensemble of quantum emitters, cooperative effects are typically suppressed due to the dephasing induced by the dipole-dipole interactions. Here, we show that by adding sufficiently strong collective dephasing, cooperative effects can be restored. Specifically, we show that the dipole force on a closely packed ensemble of strongly driven two-level quantum emitters, which collectively dephase, is enhanced in comparison to the dipole force on an independent noninteracting…

## 14 Citations

Collective Effects in Casimir-Polder Forces.

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This work finds that a one-dimensional chain of emitters prepared in a super- or subradiant state experiences an enhanced or suppressed collective vacuum-induced force, respectively, which demonstrates the potential of collective phenomena as a new tool to selectively tailor vacuum forces.

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It is shown that strong two-body dephasing can enhance the excitation blockade of neighboring Rydberg atoms, and provides a setting to explore and understand two- body dephase dynamics in many-body systems.

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The permutational invariance of identical two-level systems allows for an exponential reduction in the computational resources required to study the Lindblad dynamics of coupled spin-boson ensembles…

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It is shown that using a fully quantum parametric amplifier can cause the simultaneous decay of two atoms and, in turn, create stabilized atomic Schrödinger cat states, which can have an extremely long lifetime.

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- PhysicsNanoScience + Engineering
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Since the early work by Ashkin in 1970,1 optical trapping has become one of the most powerful tools for manipulating small particles, such as micron sized beads2 or single atoms.3 Interestingly, both…

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