Contact

• workRoom C109 Physics
  University Park
  Nottingham
  NG7 2RD
  UK
• work0115 951 5127
• andrew.armour@nottingham.ac.uk
• http://www.nottingham.ac.uk/~ppxada/

Research Summary

I am interested in the physics of engineered quantum systems including:

• Nanoelectromechanical systems
• Superconducting quantum circuits
• Optomechanical systems

Such systems are of interest because although still small compared to everyday objects, they are very large compared to individual atoms and studying them can help us understand the emergence of classical behaviour. Engineered quantum systems are also fascinating because of their complexity: they typically operate far from equilibrium and can be very strongly nonlinear, allowing us to explore a wide range of novel quantum dynamics.

Recent Publications

• LANG, BEN, MORLEY, GRACE F. and ARMOUR, ANDREW D., 2023. Discrete time translation symmetry breaking in a Josephson junction laser Phys. Rev. B. 107, 144509
• IRISH, E. K. and ARMOUR, A. D., 2022. Defining the Semiclassical Limit of the Quantum Rabi Hamiltonian PHYSICAL REVIEW LETTERS. 129(18),
• CATTIAUX, D., GOLOKOLENOV, I, KUMAR, S., SILLANPAA, M., DE LEPINAY, L. MERCIER, GAZIZULIN, R. R., ZHOU, X., ARMOUR, A. D., BOURGEOIS, O., FEFFERMAN, A. and COLLIN, E., 2021. A macroscopic object passively cooled into its quantum ground state of motion beyond single-mode cooling NATURE COMMUNICATIONS. 12(1),
• WOOD, KIERAN, ARMOUR, ANDREW D. and LANG, BEN, 2021. Josephson photonics with simultaneous resonances PHYSICAL REVIEW B. 104(15),

• View all publications

• LANG, BEN, MORLEY, GRACE F. and ARMOUR, ANDREW D., 2023. Discrete time translation symmetry breaking in a Josephson junction laser Phys. Rev. B. 107, 144509
• IRISH, E. K. and ARMOUR, A. D., 2022. Defining the Semiclassical Limit of the Quantum Rabi Hamiltonian PHYSICAL REVIEW LETTERS. 129(18),
• CATTIAUX, D., GOLOKOLENOV, I, KUMAR, S., SILLANPAA, M., DE LEPINAY, L. MERCIER, GAZIZULIN, R. R., ZHOU, X., ARMOUR, A. D., BOURGEOIS, O., FEFFERMAN, A. and COLLIN, E., 2021. A macroscopic object passively cooled into its quantum ground state of motion beyond single-mode cooling NATURE COMMUNICATIONS. 12(1),
• WOOD, KIERAN, ARMOUR, ANDREW D. and LANG, BEN, 2021. Josephson photonics with simultaneous resonances PHYSICAL REVIEW B. 104(15),
• SALA, KAMILA, DOICIN, TIB, ARMOUR, ANDREW D. and TUFARELLI, TOMMASO, 2021. Quantum estimation of coupling strengths in driven-dissipative optomechanics PHYSICAL REVIEW A. 104(3),
• LANG, BEN and ARMOUR, ANDREW D., 2021. Multi-photon resonances in Josephson junction-cavity circuits NEW JOURNAL OF PHYSICS. 23(3),
• JESSOP, M. R., LI, W. and ARMOUR, A. D., 2020. Phase synchronization in coupled bistable oscillators Phys. Rev. Research. 2, 013233
• CATTIAUX, D., ZHOU, X., KUMAR, S., GOLOKOLENOV, I, GAZIZULIN, R. R., LUCK, A., DE LEPINAY, L. MERCIER, SILLANPAA, M., ARMOUR, A. D., FEFFERMAN, A. and COLLIN, E., 2020. Beyond linear coupling in microwave optomechanics PHYSICAL REVIEW RESEARCH. 2(3),
• KUBALA, BJOERN, ANKERHOLD, JOACHIM and ARMOUR, ANDREW D., 2020. Electronic and photonic counting statistics as probes of non-equilibrium quantum dynamics NEW JOURNAL OF PHYSICS. 22(2),
• MANTOVANI, MATTIA, ARMOUR, ANDREW D., BELZIG, WOLFGANG and RASTELLI, GIANLUCA, 2019. Dynamical multistability in a quantum-dot laser PHYSICAL REVIEW B. 99(4),
• DAMBACH, SIMON, ARMOUR, ANDREW D., KUBALA, BJOERN and ANKERHOLD, JOACHIM, 2019. Josephson junction cavity systems as cousins of the quantum optical micromaser PHYSICA SCRIPTA. 94(10),
• MORLEY, W. T., DI MARCO, A., MANTOVANI, M., STADLER, P., BELZIG, W., RASTELLI, G. and ARMOUR, A. D., 2019. Theory of double Cooper-pair tunneling and light emission mediated by a resonator PHYSICAL REVIEW B. 100(5),
• DAVIS-TILLEY, C., TEOH, C. K. and ARMOUR, A. D., 2018. Dynamics of many-body quantum synchronisation NEW JOURNAL OF PHYSICS. 20,
• ARMOUR, ANDREW D., KUBALA, BJORN and ANKERHOLD, JOACHIM, 2017. Noise switching at a dynamical critical point in a cavity-conductor hybrid PHYSICAL REVIEW B. 96(21),
• WANG, HUI, BLENCOWE, M. P., ARMOUR, A. D. and RIMBERG, A. J., 2017. Quantum dynamics of a Josephson junction driven cavity mode system in the presence of voltage bias noise PHYSICAL REVIEW B. 96(10),
• DAVIS-TILLEY, C. and ARMOUR, A. D., 2016. Synchronization of micromasers PHYSICAL REVIEW A. 94(6),
• ARMOUR, A. D., KUBALA, B. and ANKERHOLD, J., 2015. Josephson photonics with a two-mode superconducting circuit PHYSICAL REVIEW B. 91(18),
• HUSH, MICHAEL R., LI, WEIBIN, GENWAY, SAM, LESANOVSKY, IGOR and ARMOUR, ANDREW D., 2015. Spin correlations as a probe of quantum synchronization in trapped-ion phonon lasers PHYSICAL REVIEW A. 91(6), 1401-1401
• RIMBERG, A. J., BLENCOWE, M. P., ARMOUR, A. D. and NATION, P. D., 2014. A cavity-Cooper pair transistor scheme for investigating quantum optomechanics in the ultrastrong coupling regime NEW JOURNAL OF PHYSICS. 16, 055008
• CHEN, FEI, LI, JULIANG, ARMOUR, A. D., BRAHIMI, E., STETTENHEIM, JOEL, SIROIS, A. J., SIMMONDS, R. W., BLENCOWE, M. P. and RIMBERG, A. J., 2014. Realization of a single-Cooper-pair Josephson laser PHYSICAL REVIEW B. 90(2), 506-506
• KIRTON, P. G. and ARMOUR, A. D., 2013. Nonlinear dynamics of a driven nanomechanical single-electron transistor PHYSICAL REVIEW B. 87(15), 155407
• DEFOORT, M., LULLA, K. J., BLANC, C., BOURGEOIS, O., COLLIN, E. and ARMOUR, A. D., 2013. Modal "self-coupling" as a sensitive probe for nanomechanical detection APPLIED PHYSICS LETTERS. 103(1),
• ARMOUR A.D., BLENCOWE M.P., BRAHIMI E. and A J RIMBERG, 2013. Universal Quantum Fluctuations of a Cavity Mode Driven by a Josephson Junction Physical Review Letters. 111, 247001
• GENWAY, S, GARRAHAN, JP, LESANOVSKY, I and ARMOUR, AD, 2012. Phase transitions in trajectories of a superconducting single-electron transistor coupled to a resonator Physical Review E. 85(5), -
• BLENCOWE MP, ARMOUR AD and RIMBERG AJ, 2012. Quantum-classical correspondence for a dc-biased cavity resonator-Cooper pair transistor system. In: DYKMAN M, ed., Fluctuating Nonlinear Oscillators Oxford University Press.
• ARMOUR AD and RODRIGUES DA, 2012. Quantum dynamics of a mechanical resonator driven by a cavity COMPTES RENDUS PHYSIQUE. 13(5), 440-453
• KIRTON, P.G., ARMOUR, A.D., HOUZET, M. and PISTOLESI, F., 2012. Quantum current noise from a Born-Markov master equation Physical Review B. 86(8), 081305
• LULLA, K.J., COUSINS, R.B., VENKATESAN, A., PATTON, M.J., ARMOUR, A.D., MELLOR, C.J. and OWERS-BRADLEY, J.R., 2012. Nonlinear modal coupling in a high-stress doubly-clamped nanomechanical resonator New Journal of Physics. 14(11), 113040
• GARRAHAN, JP, ARMOUR, AD and LESANOVSKY, I, 2011. Quantum Trajectory Phase Transitions In The Micromaser Physical Review E. 84(2), -
• KIRTON, PG, HOUZET, M, PISTOLESI, F and ARMOUR, AD, 2010. Charge Noise At Cooper-Pair Resonances Physical Review B. 82(6), -
• HARVEY, T.J., RODRIGUES, D.A. and ARMOUR, A.D., 2010. Spectral properties of a resonator driven by a superconducting single-electron transistor Physical Review B. 81(10), 104514
• VENKATESAN, A., LULLA, K.J., PATTON, M.J., ARMOUR, A.D., MELLOR, C.J. and OWERS-BRADLEY, J.R., 2010. Dissipation due to tunneling two-level systems in gold nanomechanical resonators Physical Review B. 81(7), 073410
• RODRIGUES, D.A. and ARMOUR, AD, 2010. Amplitude Noise Suppression In Cavity-Driven Oscillations Of A Mechanical Resonator Physical Review Letters. 104(5), 053601
• VENKATESAN, A., LULLA, K.J., PATTON, M.J., ARMOUR, A.D., MELLOR, C.J. and OWERS-BRADLEY, J.R., 2010. Dissipation in a gold nanomechanical resonator at low temperatures Journal of Low Temperature Physics. 158(3-4), 685-691
• ARMOUR, A.D. and BLENCOWE, M.P., 2008. Probing the quantum coherence of a nanomechanical resonator using a superconducting qubit: I. Echo scheme New Journal Of Physics. 10(9), 095004
• BLENCOWE, MP and ARMOUR, AD, 2008. Probing The Quantum Coherence Of A Nanomechanical Resonator Using A Superconducting Qubit: II. Implementation New Journal Of Physics. 10, -
• HARVEY, T.J., RODRIGUES, D.A. and ARMOUR, A.D., 2008. Current noise of a superconducting single-electron transistor coupled to a resonator Physical Review B. 78(2), 024513
• RODRIGUES, D.A., IMBERS, J. and ARMOUR, A.D., 2007. Quantum dynamics of a resonator driven by a superconducting single-electron transistor: a solid-state analogue of the micromaser Physical Review Letters. 98(6), 067204
• RODRIGUES, D.A., IMBERS, J., HARVEY T.J. and ARMOUR A.D., 2007. Dynamical instabilities of a resonator driven by a superconducting single-electron transistor New Journal of Physics. 9, 84
• NAIK, A., BUU, O., LAHAYE, M.D., ARMOUR, A.D., CLERK, A.A., BLENCOWE, M.P. and SCHWAB, K.C., 2006. Cooling a nanomechanical resonator with quantum back-action Nature. 443(7108), 193-196
• RODRIGUES, D.A. and ARMOUR, A.D., 2005. Quantum master equation descriptions of a nanomechanical resonator coupled to a single-electron transistor New Journal of Physics. 7, 251
• RODRIGUES, D.A. and ARMOUR, A.D., 2005. Noise properties of two single-electron transistors coupled by a nanomechanical resonator Physical Review B: Condensed Matter and Materials Physics. 72(8), 085324
• BLENCOWE,M.P., IMBERS,J. and ARMOUR,A.D., 2005. Dynamics of a nanomechanical resonator coupled to a superconducting single-electron transistor New Journal of Physics. 7, Article No 236 (21 pages)
• ARMOUR, A.D., BLENCOWE, M.P. and ZHANG, Y., 2004. Classical dynamics of a nanomechanical resonator coupled to a single-electron transistor Physical Review B: Condensed Matter and Materials Physics. 69(12), 125313
• ARMOUR, A. D., 2004. Current noise of a single-electron transistor coupled to a nanomechanical resonator (11 pages) PHYSICAL REVIEW -SERIES B-. VOL 70(NUMB 16), 165315
• MACKINNON, A. and ARMOUR, A. D., 2003. Quantum interference and inelastic scattering in a which-way device Physica E - Low-Dimensional Systems & Nanostructures. VOL 18(NUMBER 1-3), 235-236
• MACKINNON, A. and ARMOUR, A. D., 2003. Transport via a quantum shuttle Physica E - Low-Dimensional Systems & Nanostructures. VOL 18(NO 1-3), 95-96
• RAMAKRISHNA, S. A. and ARMOUR, A. D., 2003. Propagating and evanescent waves in absorbing media American Journal of Physics. VOL 71(PART 6), 562-567
• ARMOUR, A.D., BLENCOWE, M.P. and SCHWAB, K.C., 2002. Entanglement and decoherence of a micromechanical resonator via coupling to a Cooper-pair box Physical Review Letters. 88(14), 148301
• ARMOUR, A. D. and MACKINNON, A., 2002. Transport via a quantum shuttle PHYSICAL REVIEW -SERIES B-. VOL 66(PART 3), 035333
• ARMOUR, A. D., BLENCOWE, M. P. and SCHWAB, K. C., 2002. Mechanical lamb-shift analogue for the Cooper-pair box Physica B - Physics of Condensed Matter. VOL 316-317, 406-407
• ARMOUR, A. D. and BLENCOWE, M. P., 2002. Dephasing and thermal smearing in an electromechanical which-path device Physica B - Physics of Condensed Matter. VOL 316-317, 400-402
• ARMOUR, A. D. and BLENCOWE, M. P., 2001. Possibility of an electromechanical which-path interferometer Physical Review B: Condensed Matter. VOL 64(PART 3), 035311