Professor Janne Ruostekoski

Chair in Theoretical Condensed Matter Physics

Research Overview

  • Quantum optics, cold atoms
  • Cooperative phenomenology, light-matter interactions
  • Photonics, Metamaterials
  • Quantum technologies
  • Topological properties of matter and light

Interaction of light with planar lattices of atoms: Reflection, transmission, and cooperative magnetometry
Facchinetti, G., Ruostekoski, J. 22/02/2018 In: Physical Review A. 97, 2, 12 p.
Journal article

Arrays of strongly-coupled atoms in a one-dimensional waveguide
Ruostekoski, J., Javanainen, J. 29/09/2017 In: Physical Review A. 96, 3, 13 p.
Journal article

Exact electrodynamics versus standard optics for a slab of cold dense gas
Javanainen, J., Ruostekoski, J., Li, Y., Yoo, S. 20/09/2017 In: Physical Review A. 96, 9, 19 p.
Journal article

Stochastic electrodynamics simulations for collective atom response in optical cavities
Lee, M.D., Jenkins, S.D., Bronstein, Y., Ruostekoski, J. 25/08/2017 In: Physical Review A. 96, 8, 19 p.
Journal article

Many-body subradiant excitations in metamaterial arrays: experiment and theory
Jenkins, S., Ruostekoski, J., Papasimakis, N., Savo, S., Zheludev, N. 3/08/2017 In: Physical Review Letters. 119, 5-4, 6 p.
Journal article

Point dipole and quadrupole scattering approximation to collectively responding resonator systems
Watson, D.W., Jenkins, S.D., Ruostekoski, J. 5/07/2017 In: Physical Review B. 96, 3, 18 p.
Journal article

Internal structure and stability of vortices in a dipolar spinor Bose-Einstein condensate
Borgh, M.O., Lovegrove, J., Ruostekoski, J. 1/05/2017 In: Physical Review A. 95, 5, 11 p.
Journal article

Core structure and non-Abelian reconnection of defects in a biaxial nematic spin-2 Bose-Einstein condensate
Borgh, M.O., Ruostekoski, J. 29/12/2016 In: Physical Review Letters. 117, 6 p.
Journal article

Storing light with subradiant correlations in arrays of atoms
Facchinetti, G., Jenkins, S., Ruostekoski, J. 5/12/2016 In: Physical Review Letters. 117, 24, 5 p.
Journal article

Emergence of correlated optics in one-dimensional waveguides for classical and quantum atomic gases
Ruostekoski, J., Javanainen, J. 30/09/2016 In: Physical Review Letters. 117, 6 p.
Journal article

Collective resonance fluorescence in small and dense atom clouds: Comparison between theory and experiment
Jenkins, S., Ruostekoski, J., Javanainen, J., Jennewein, S., Bourgain, R., Pellegrino, J., Sortais, Y., Browaeys, A. 24/08/2016 In: Physical Review A. 94, 2, p. 1-15. 15 p.
Journal article

Half-skyrmion spin textures in polariton microcavities
Cilibrizzi, P., Sigurdsson, H., Liew, T., Ohadi, H., Askitopoulos, A., Brodbeck, S., Schneider, C., Shelykh, I., Hofling, S., Ruostekoski, J., Lagoudakis, P. 25/07/2016 In: Physical Review B. 94, 4, 8 p.
Journal article

Coherent scattering of near-resonant light by a dense microscopic cold atomic cloud
Jennewein, S., Besbes, M., Schilder, N., Jenkins, S., Sauvan, C., Ruostekoski, J., Greffet, J., Sortais, Y., Browaeys, A. 8/06/2016 In: Physical Review Letters. 116, 23, 6 p.
Journal article

Stochastic methods for light propagation and recurrent scattering in saturated and nonsaturated atomic ensembles
Lee, M.D., Jenkins, S.D., Ruostekoski, J. 6/06/2016 In: Physical Review A. 93, 6, 22 p.
Journal article

Multiple scattering and co-operative response in periodic and disordered metamaterials
Papasimakis, N., Jenkins, S., Fedotov, V., Pinheiro, F., Ruostekoski, J., Zheludev, N. 23/05/2016
Poster

Optical resonance shifts in the fluorescence of thermal and cold atomic gases
Jenkins, S., Ruostekoski, J., Javanainen, J., Bourgain, R., Jennewein, S., Sortais, Y., Browaeys, A. 2/05/2016 In: Physical Review Letters. 116, 18, 5 p.
Journal article

The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper)
Bongs, K., Boyer, V., Cruise, M., Freise, A., Holynski, M., Hughes, J., Kaushik, A., Lien, Y., Niggebaum, A., Perea-Ortiz, M., Petrov, P., Plant, S., Singh, Y., Stabrawa, A., Paul, D., Sorel, M., Cumming, D., Marsh, J., Bowtell, R., Bason, M., Beardsley, R., Campion, R., Brookes, M., Fernholz, T., Fromhold, T., Hackermuller, L., Krüger, P., Li, X., Maclean, J., Mellor, C., Novikov, S., Orucevic, F., Rushforth, A., Welch, N., Benson, T., Wildman, R.D., Freegarde, T., Himsworth, M., Ruostekoski, J., Smith, P., Tropper, A., Griffin, P., Arnold, A., Riis, E., Hastie, J., Paboeuf, D., Parrotta, D., Garraway, B., Pasquazi, A., Peccianti, M., Hensinger, W., Potter, E., Nizamani, A., Bostock, H., Rodriguez Blanco, A., Sinuco-Leon, G., Hill, I., Williams, R., Gill, P., Hempler, N., Malcolm, G., Cross, T., Kock, B., Maddox, S., John, P. 5/04/2016 In: Proceedings of SPIE. 9900
Journal article

Stability and internal structure of vortices in spin-1 Bose-Einstein condensates with conserved magnetization
Lovegrove, J., Borgh, M., Ruostekoski, J. 18/03/2016 In: Physical Review A. 93, 3, 19 p.
Journal article

Toroidal dipole excitations in metamolecules formed by interacting plasmonic nanorods
Watson, D.W., Jenkins, S.D., Ruostekoski, J., Fedotov, V.A., Zheludev, N.I. 16/03/2016 In: Physical Review B. 93, 12 p.
Journal article

Stable core symmetries and confined textures for a vortex line in a Spinor Bose-Einstein condensate
Borgh, M.O., Nitta, M., Ruostekoski, J. 25/02/2016 In: Physical Review Letters. 116, 8, 6 p.
Journal article

Light propagation beyond the mean-field theory of standard optics
Javanainen, J., Ruostekoski, J. 12/01/2016 In: Optics Express. 24, 2, p. 993-1001. 9 p.
Journal article

Collective effects in ordered and disordered metasurfaces; applications in light localization and imaging
Papasimakis, N., Jenkins, S., Savo, S., Ruostekoski, J., Fedotov, V., Zheludev, N. 7/12/2015
Conference paper

Cavity quantum electrodynamics of continuously monitored Bose-condensed atoms
Lee, M., Ruostekoski, J. 23/09/2015 In: Atoms. 3, 3, p. 450-473. 24 p.
Journal article

Local field enhancement induced by collective interactions in disordered metamaterials
Jenkins, S., Papasimakis, N., Savo, S., Ruostekoski, J., Zheludev, N. 1/09/2015
Conference paper

Observation of suppression of light scattering induced by dipole-dipole interactions in a cold-atom ensemble
Pellegrino, J., Bourgain, R., Jennewein, S., Sortais, Y., Browaeys, A., Jenkins, S., Ruostekoski, J. 26/09/2014 In: Physical Review Letters. 113, 13, 5 p.
Journal article

Optical signatures of antiferromagnetic ordering of fermionic atoms in an optical lattice
Cordobes Aguilar, F., Ho, A.F., Ruostekoski, J. 2/09/2014 In: Physical Review A. 4, 3
Journal article

Classical stochastic measurement trajectories: Bosonic atomic gases in an optical cavity and quantum measurement backaction
Lee, M.D., Ruostekoski, J. 22/08/2014 In: Physical Review A. 90, 2, 21 p.
Journal article

Imprinting a topological interface using Zeeman shifts in an atomic spinor Bose–Einstein condensate
Borgh, M.O., Lovegrove, J., Ruostekoski, J. 22/05/2014 In: New Journal of Physics. 16, 28 p.
Journal article

Shifts of a resonance line in a dense atomic sample
Javanainen, J., Ruostekoski, J., Li, Y., Yoo, S. 21/03/2014 In: Physical Review Letters. 112, 11, 5 p.
Journal article

Energetic stability of coreless vortices in Spin-1 Bose-Einstein condensates with conserved magnetization
Lovegrove, J., Borgh, M.O., Ruostekoski, J. 19/02/2014 In: Physical Review Letters. 112, 7, 6 p.
Journal article

Metamaterial transparency induced by cooperative electromagnetic interactions
Jenkins, S., Ruostekoski, J. 30/09/2013 In: Physical Review Letters. 111, 14, 5 p.
Journal article

General theory of magnetic metamaterials
Ruostekoski, J., Jenkins, S. 1/09/2013
Conference paper

Measuring and engineering entropy and spin squeezing in weakly linked Bose–Einstein condensates
Cattani, F., Gross, C., Oberthaler, M., Ruostekoski, J. 1/06/2013 In: New Journal of Physics. 15, 6, p. 1-15. 15 p.
Journal article

Cooperative electromagnetic interactions and linewidth narrowing in discrete metamaterial systems
Jenkins, S., Ruostekoski, J. 1/05/2013
Conference paper

Truncated Wigner method for Bose gases
Ruostekoski, J., Martin, A. 1/04/2013 In: Quantum Gases. Imperial College Press p. 203-214. 12 p. ISBN: 9781848168107 . Electronic ISBN: 9781908979704.
Chapter

Topological interface physics of defects and textures in spinor Bose-Einstein condensates
Borgh, M.O., Ruostekoski, J. 19/03/2013 In: Physical Review A. 87, 3, 14 p.
Journal article

Emergent classicality in continuous quantum measurements
Javanainen, J., Ruostekoski, J. 3/01/2013 In: New Journal of Physics. 15, 1, 9 p.
Journal article

Electron-beam-driven collective-mode metamaterial light source
Adamo, G., Ou, J., So, J., Jenkins, S., De Angelis, F., MacDonald, K.F., Di Fabrizio, E., Ruostekoski, J., Zheludev, N.I. 20/11/2012 In: Physical Review Letters. 109, 21, 5 p.
Journal article

Resonance linewidth and inhomogeneous broadening in a metamaterial array
Jenkins, S.D., Ruostekoski, J. 15/11/2012 In: Physical Review B. 86, 20, 9 p.
Journal article

Cooperative resonance linewidth narrowing in a planar metamaterial
Jenkins, S., Ruostekoski, J. 1/10/2012 In: New Journal of Physics. 14, p. 103003. 1 p.
Journal article

Controlled manipulation of light by cooperative response of atoms in an optical lattice
Jenkins, S.D., Ruostekoski, J. 11/09/2012 In: Physical Review A. 86, 3, 5 p.
Journal article

Theoretical formalism for collective electromagnetic response of discrete metamaterial systems
Jenkins, S.D., Ruostekoski, J. 13/08/2012 In: Physical Review B. 86, 8, 29 p.
Journal article

Bragg spectroscopic interferometer and quantum measurement-induced correlations in atomic Bose-Einstein condensates
Lee, M., Rist, S., Ruostekoski, J. 31/07/2012 In: New Journal of Physics. 14, 73057, 13 p.
Journal article

Energetically stable singular vortex cores in an atomic spin-1 Bose-Einstein condensate
Lovegrove, J., Borgh, M.O., Ruostekoski, J. 12/07/2012 In: Physical Review A. 86, 1, 13 p.
Journal article

Topological interface engineering and defect crossing in ultracold atomic gases
Borgh, M.O., Ruostekoski, J. 3/07/2012 In: Physical Review Letters. 109, 1, 5 p.
Journal article

Quantum dynamics of atomic bright solitons under splitting and recollision, and implications for interferometry
Martin, A., Ruostekoski, J. 27/04/2012 In: New Journal of Physics. 14, 29 p.
Journal article

Fragmentation, domain formation and atom number fluctuations of a two-species Bose–Einstein condensate in an optical lattice
Shrestha, U., Ruostekoski, J. 26/04/2012 In: New Journal of Physics. 14, 32 p.
Journal article

Coherent emission from plasmonic metamaterials
Adamo, G., Ou, J., So, J., Jenkins, S., MacDonald, K., De Angelis, F., Di Fabrizio, E., Ruostekoski, J., Zheludev, N. 1/04/2012
Conference paper

Fano resonance and light localization in disordered metamaterials
Savo, S., Papasimakis, N., Jenkins, S., Ruostekoski, J., Zheludev, N. 10/2011
Conference paper

Local and spatially extended sub-Poisson atom-number fluctuations in optical lattices
Gross, C., Estève, J., Oberthaler, M., Martin, A., Ruostekoski, J. 25/07/2011 In: Physical Review A. 84, 1, 4 p.
Journal article

Coherent control of nanoscale light localization: creating and positioning isolated sub-wavelength energy hot-spots
Kao, T.S., Jenkins, S., Ruostekoski, J., Zheludev, N. 1/05/2011 In: Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference. IEEE
Paper

Coherent control of nanoscale light localization in metamaterial: creating and positioning isolated subwavelength energy hot spots
Kao, T.S., Jenkins, S., Ruostekoski, J., Zheludev, N. 1/02/2011 In: Physical Review Letters. 106, 8, 12 p.
Journal article

Coherent control of nanoscale light localization: positioning a hot-spot at will
Kao, T., Jenkins, S., Ruostekoski, J., Zheludev, N. 2011
Conference paper

Strong collective response of large metamaterial systems
Ruostekoski, J., Jenkins, S., Zheludev, N. 2011
Conference paper

Collective dynamics in photonic meta-molecules: from light localization to the lasing spaser
Jenkins, S., Papasimakis, N., Zheludev, N., Ruostekoski, J. 1/09/2010
Conference paper

Nonequilibrium quantum dynamics of atomic dark solitons
Martin, A., Ruostekoski, J. 28/05/2010 In: New Journal of Physics. 12, 20 p.
Journal article

Quantum and thermal effects of dark solitons in a one-dimensional bose gas
Martin, A., Ruostekoski, J. 12/05/2010 In: Physical Review Letters. 104, 19, 4 p.
Journal article

Pulsating and persistent vector solitons in a Bose-Einstein condensate in a lattice upon phase separation instability
Shrestha, U., Javanainen, J., Ruostekoski, J. 6/11/2009 In: Physical Review Letters. 103, 19, 4 p.
Journal article

Light scattering for thermometry of fermionic atoms in an optical lattice
Ruostekoski, J., Foot, C., Deb, A. 23/10/2009 In: Physical Review Letters. 103, 17, 4 p.
Journal article

Optical kagome lattice for ultracold atoms with nearest neighbor interactions
Ruostekoski, J. 21/08/2009 In: Physical Review Letters. 103, 8, 4 p.
Journal article

Kicked Bose-Einstein condensates: in search of exponential instability
Monteiro, T., Rancon, A., Ruostekoski, J. 1/07/2009 In: Complex Phenomena in Nanoscale Systems. Dordrecht : Springer p. 109-119. 11 p. ISBN: 9789048131204.
Chapter

Quantum dynamics of instability-induced pulsations of a Bose-Einstein condensate in an optical lattice
Shrestha, U., Javanainen, J., Ruostekoski, J. 16/04/2009 In: Physical Review A. 79, 4, 13 p.
Journal article

Nonlinear resonances in delta-kicked Bose-Einstein condensates
Monteiro, T., Rançon, A., Ruostekoski, J. 8/01/2009 In: Physical Review Letters. 102, 1, 4 p.
Journal article

Manipulating atoms in an optical lattice: fractional fermion number and its optical quantum measurement
Ruostekoski, J., Javanainen, J., Dunne, G. 3/01/2008 In: Physical Review A. 77, 1, 18 p.
Journal article

Dynamical and energetic instabilities in multicomponent Bose-Einstein condensates in optical lattices
Ruostekoski, J., Dutton, Z. 10/12/2007 In: Physical Review A. 76, 6, 16 p.
Journal article

Quantum dynamics in splitting a harmonically trapped Bose-Einstein condensate by an optical lattice: truncated Wigner approximation
Isella, L., Ruostekoski, J. 22/12/2006 In: Physical Review A. 74, 6, 16 p.
Journal article

Symbolic calculation in development of algorithms: Split-step methods for the Gross-Pitaevskii equation
Javanainen, J., Ruostekoski, J. 8/03/2006 In: Journal of Physics -London- a Mathematical and General. 39, 12, p. L179-L184. 6 p.
Journal article

Engineering vortex rings and systems for controlled studies of vortex interactions in Bose-Einstein condensates
Ruostekoski, J., Dutton, Z. 30/12/2005 In: Physical Review A. 72, 6, 14 p.
Journal article

Dissipative quantum dynamics of bosonic atoms in a shallow 1D optical lattice
Ruostekoski, J., Isella, L. 8/09/2005 In: Physical Review Letters. 95, 11, 4 p.
Journal article

Nonadiabatic dynamics of a Bose-Einstein condensate in an optical lattice
Isella, L., Ruostekoski, J. 1/07/2005 In: Physical Review A. 72, 1, 4 p.
Journal article

Transfer and storage of vortex states in light and matter waves
Dutton, Z., Ruostekoski, J. 4/11/2004 In: Physical Review Letters. 93, 19, 4 p.
Journal article

Stable particlelike solitons with multiply-quantized vortex lines in Bose-Einstein condensates
Ruostekoski, J. 4/10/2004 In: Physical Review A. 70, 4, 4 p.
Journal article

Monopole core instability and Alice rings in spinor Bose-Einstein condensates
Ruostekoski, J., Anglin, J. 3/11/2003 In: Physical Review Letters. 91, 19, 4 p.
Journal article

Optical detection of a fractional particle number in an atomic Fermi-Dirac gas
Javanainen, J., Ruostekoski, J. 8/10/2003 In: Physical Review Letters. 91, 15, 4 p.
Journal article

Dirac monopoles and dipoles in ferromagnetic spinor Bose-Einstein condensates
Savage, C., Ruostekoski, J. 6/10/2003 In: Physical Review A. 68, 4, 6 p.
Journal article

Pulsed Raman output coupler for an atom laser
Ruostekoski, J., Gasenzer, T., Hutchinson, D. 23/07/2003 In: Physical Review A. 68, 1, 4 p.
Journal article

Energetically stable particlelike skyrmions in a trapped Bose-Einstein condensate
Savage, C., Ruostekoski, J. 1/07/2003 In: Physical Review Letters. 91, 1, 4 p.
Journal article

Particle number fractionilization of an atomic Fermi-Dirac gas in an optical lattice
Ruostekoski, J., Dunne, G.V., Javanainen, J. 17/04/2002 In: Physical Review Letters. 88, 18, 4 p.
Journal article

Creating vortex rings and three-dimensional Skyrmions in Bose-Einstein condensates
Ruostekoski, J., Anglin, J. 30/04/2001 In: Physical Review Letters. 86, 18, p. 3934-3937. 4 p.
Journal article

Interference of a Bose-Einstein condensate in a hard-wall trap: from nonlinear Talbot effect to formation of vorticity
Ruostekoski, J., Kneer, B., Schleich, W., Rempe, G. 20/03/2001 In: Physical Review A. 63, 4, 7 p.
Journal article

Schroedinger cat state of a Bose-Einstein condensate in a double-well potential
Ruostekoski, J. 2001 In: Directions in Quantum Optics. Part 1. A Collection of Papers Dedicated to the Memory of Dan Walls Including Papers Presented at the TAMU-ONR Workshop Held at Jackson, Wyoming, USA, 26–30 July 1999. Berlin : Springer p. 77-87. 11 p. ISBN: 9783540411871.
Chapter

Top