Outputs (19)

Dynamics of many-body quantum synchronisation (2018)
Journal Article
Davis-Tilley, C., Teoh, C. K., & Armour, A. D. (2018). Dynamics of many-body quantum synchronisation. New Journal of Physics, 20(11), Article 113002. https://doi.org/10.1088/1367-2630/aae947

© 2018 The Author(s). The Author(s). Published by IOP Publishing on behalf of the Institute of Physics and Deutsche Physikalische Gesellschaft. We analyse the properties of the synchronisation transition in a many-body system consisting of quantum va... Read More about Dynamics of many-body quantum synchronisation.

Noise switching at a dynamical critical point in a cavity-conductor hybrid (2017)
Journal Article
Armour, A. D., Kubala, B., & Ankerhold, J. (in press). Noise switching at a dynamical critical point in a cavity-conductor hybrid. Physical Review B, 96(21), https://doi.org/10.1103/PhysRevB.96.214509

Coupling a mesoscopic conductor to a microwave cavity can lead to fascinating feedback effects which generate strong correlations between the dynamics of photons and charges. We explore the connection between cavity dynamics and charge transport in... Read More about Noise switching at a dynamical critical point in a cavity-conductor hybrid.

Quantum dynamics of a Josephson junction driven cavity mode system in the presence of voltage bias noise (2017)
Journal Article
Wang, H., Blencowe, M., Armour, A., & Rimberg, A. (2017). Quantum dynamics of a Josephson junction driven cavity mode system in the presence of voltage bias noise. Physical Review B, 96(10), https://doi.org/10.1103/PhysRevB.96.104503

We give a semiclassical analysis of the average photon number as well as photon number variance (Fano factor F) for a Josephson junction (JJ) embedded microwave cavity system, where the JJ is subject to a fluctuating (i.e., noisy) bias voltage with f... Read More about Quantum dynamics of a Josephson junction driven cavity mode system in the presence of voltage bias noise.

Synchronization of micromasers (2016)
Journal Article
Davis-Tilley, C., & Armour, A. (2016). Synchronization of micromasers. Physical Review A, 94(6), Article 063819. https://doi.org/10.1103/PhysRevA.94.063819

We investigate synchronization effects in quantum self-sustained oscillators theoretically using the micromaser as a model system. We use the probability distribution for the relative phase as a tool for quantifying the emergence of preferred phases... Read More about Synchronization of micromasers.

Spin correlations as a probe of quantum synchronization in trapped ion phonon-lasers (2015)
Journal Article
Hush, M. R., Li, W., Genway, S., Lesanovsky, I., & Armour, A. (2015). Spin correlations as a probe of quantum synchronization in trapped ion phonon-lasers. Physical Review A, 91, Article 061401. https://doi.org/10.1103/PhysRevA.91.061401

We investigate quantum synchronization theoretically in a system consisting of two cold ions in microtraps. The ions' motion is damped by a standing-wave laser whilst also being driven by a blue-detuned laser which results in self-oscillation. Workin... Read More about Spin correlations as a probe of quantum synchronization in trapped ion phonon-lasers.

Josephson photonics with a two-mode superconducting circuit (2015)
Journal Article
Armour, A. D., Kubala, B., & Ankerhold, J. (2015). Josephson photonics with a two-mode superconducting circuit. Physical Review B, 91(184508), https://doi.org/10.1103/PhysRevB.91.184508

We analyze the quantum dynamics of two electromagnetic oscillators coupled in series to a voltage-biased Josephson junction. When the applied voltage leads to a Josephson frequency across the junction which matches the sum of the two mode frequencies... Read More about Josephson photonics with a two-mode superconducting circuit.

Realization of a single-Cooper-pair Josephson laser (2014)
Journal Article
Chen, F., Li, J., Armour, A., Brahimi, E., Stettenheim, J., Sirois, A., …Rimberg, A. (2014). Realization of a single-Cooper-pair Josephson laser. Physical Review B, 90, Article 020506. https://doi.org/10.1103/PhysRevB.90.020506

We have embedded a voltage-biased Cooper-pair transistor (CPT) in a high-Q superconducting microwave cavity. When the energy given to a tunneling Cooper pair by the voltage bias is equal to a multiple of the cavity photon frequency, the cavity is pum... Read More about Realization of a single-Cooper-pair Josephson laser.

A cavity-Cooper pair transistor scheme for investigating quantum optomechanics in the ultrastrong coupling regime (2014)
Journal Article
Rimberg, A., Blencowe, M., Armour, A., & Nation, P. (2014). A cavity-Cooper pair transistor scheme for investigating quantum optomechanics in the ultrastrong coupling regime. New Journal of Physics, 16, Article 055008. https://doi.org/10.1088/1367-2630/16/5/055008

We propose a scheme involving a Cooper pair transistor (CPT) embedded in a superconducting microwave cavity, where the CPT serves as a charge tunable quantum inductor to facilitate ultra-strong coupling between photons in the cavity and a nano- to me... Read More about A cavity-Cooper pair transistor scheme for investigating quantum optomechanics in the ultrastrong coupling regime.

Nonlinear modal coupling in a high-stress doubly-clamped nanomechanical resonator (2012)
Journal Article
Lulla, K., Cousins, R., Venkatesan, A., Patton, M., Armour, A., Mellor, C. J., & Owers-Bradley, J. (2012). Nonlinear modal coupling in a high-stress doubly-clamped nanomechanical resonator. New Journal of Physics, 14, Article 113040. https://doi.org/10.1088/1367-2630/14/11/113040

We present results from a study of the nonlinear inter-modal coupling between different flexural vibrational modes of a single high-stress, doubly-clamped silicon nitride nanomechanical beam. Using the magnetomotive technique and working at 100 mK we... Read More about Nonlinear modal coupling in a high-stress doubly-clamped nanomechanical resonator.