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James Millen

Dr James Millen

Reader in Advanced Photonics

  • King's Quantum Director

Research interests

  • Physics

Biography

James is an experimental quantum scientist at King's, and Director of King's Quantum, a multidisciplinary research initiative. He studies novel quantum technologies and fundamental physics at the nanoscale. He is proud to support his research community, and leads LeviNet, and international research network of over 70 institutions.

He completed his MSc in Physics at Imperial College London in 2007, and his Ph. D. in experimental atomic physics at Durham University in 2011, under the supervision of Dr. M. P. A. Jones. During this work he created the world’s first gas of ultra-cold strontium Rydberg atoms.

In 2011 James moved to University College London, to work with Prof. Peter Barker in the new field of levitated optomechanics. In pioneering work, they used focussed laser beams and optical cavities to cool and control the motion of charged silica nanoparticles. Together with Dr. Janet Anders they undertook a paradigmatic study into the non-equilibrium dynamics of a Brownian particle.

James was awarded a Marie Skłodowska-Curie Research Fellowship to work in the Quantum Nanophysics group of Prof. Markus Arndt at the University of Vienna between 2015-2018. The group developed techniques which will enable the exploration of the mass limit of quantum physics in uncharted regimes. While in Vienna, James pioneered the study of rotational optomechanics, developing the most frequency stable mechanical object ever created.

Public Engagement

To complement his research, James has fostered a keen interest in Outreach, Public Engagement, and Science Communication, and is currently Lecturer in Quantum Theory to the Public at the Royal Institution. He runs The Quantum Workshop mobile experiment, has written for the Guardian and Physics World, and has acted as scientific advisor for two BBC documentaries. More details can be found on his personal websites:

Research: www.levi-nano.com
Outreach: www.thequantumworkshop.com
Twitter: @QuantumWorkshop

 

Research interests

  • Opto- and electro-mechanics
  • Nano-thermodynamics
  • Macroscopic quantum physics

    Research

    THUMB PAGE Laser Trap
    Photonics & Nanotechnology

    The research in the group involves the development and applications of advanced photonic technologies and of novel nanomaterials to address modern challenges in photonic and quantum technologies, new nanostructured materials, sensing, imaging and clean energy.

    News

    King's physicist to build analogue computer to unlock the randomness of nature

    A project to develop an analogue computer able to decode the randomness of nature is being led by Dr James Millen from the Department of Physics.

    Levitating microparticles

    King's scientist partners with e-money start-up to build next generation quantum sensors for technologies of the future

    Dr James Millen will develop ultra-sensitive quantum sensing platforms through collaboration with e-money current account start-up Science Card

    James Millen in his lab

    King's physicists at Royal Society Summer Science Exhibition 2024

    The team will be part of a chorus of cutting-edge research being presented to the public over six days in July.

    Physics academics

    Experiment reveals light rotating objects in a direction never seen before

    Whirlpools of light exert force 100,000 times greater than seen before in possible breakthrough for the optical manipulation of matter and quantum...

    Silicon nanorods

    King's researchers celebrate the International Day of Light at Science Gallery London

    The Department of Physics and the London Institute for Advanced Light Technologies (LIALT) hosted 'Guiding Lights' at Science Gallery London on 16 May 2022 to...

    Guiding Lights @ the Science Gallery London

    Seeing the Unthinkable – King's Artists project combines quantum physics and art to explore the invisible

    A collaboration between an artist and a scientist that makes information ‘hidden’ inside objects accessible to anyone.

    An ion trap formed using an electric current of ancient Chinese currency

    Exploring collaborations between physicists and artists

    Science Gallery London exhibition highlights partnerships with King's artists in residence

    Seeing the Unthinkable

    Testing Ground opens at Science Gallery London

    New exhibition changes the ways we think about our invisible connections – to the cosmos, to nanoparticles, and to each other.

    Particle Shrine - Web Size

    Eleven new King's Artists projects exploring the theme of 'Intelligence'

    The 2021 King’s Artists cohort will be exploring the theme of ‘Intelligence’ in eleven new collaborative R&D projects across four King’s College London...

    Grey logo sign resembling an eye over a blue map of the Strand

    Quantum circuits with a levitated heart

    The latest development in this UKRI and European Research Council-funded project explores how the motion of charged microparticles can be detected and...

    Microparticles will be levitated within circuits and interfaced with quantum devices to act as nodes in a quantum network. Photo credit: Mark Mazaitis for Dr James Millen.

    Events

    24MayLight & Matter Wavelength Spectrum

    Light & Matter Seminar: Professor Edward Laird - A coherent mechanical oscillator pumped by a suspended quantum dot

    Part of the Light & Matter Series hosted by the Photonics & Nanotechnology Group

    Please note: this event has passed.

    10MayLight & Matter Wavelength Spectrum

    Light & Matter Seminar: Professor Jeremy Baumberg - Massively enhancing optical forces at the metal-molecule interface

    Part of the Light & Matter Series hosted by the Photonics & Nanotechnology Group

    Please note: this event has passed.

    16MayLondon Light Logo

    Guiding Lights

    The London Institute for Advanced Light Technology presents Guiding Lights at the Science Gallery London

    Please note: this event has passed.

    16AprThe Age of Light

    Age of Light [POSTPONED]

    A unique interdisciplinary symposium to celebrate the universal power of light

    Please note: this event has passed.

      Research

      THUMB PAGE Laser Trap
      Photonics & Nanotechnology

      The research in the group involves the development and applications of advanced photonic technologies and of novel nanomaterials to address modern challenges in photonic and quantum technologies, new nanostructured materials, sensing, imaging and clean energy.

      News

      King's physicist to build analogue computer to unlock the randomness of nature

      A project to develop an analogue computer able to decode the randomness of nature is being led by Dr James Millen from the Department of Physics.

      Levitating microparticles

      King's scientist partners with e-money start-up to build next generation quantum sensors for technologies of the future

      Dr James Millen will develop ultra-sensitive quantum sensing platforms through collaboration with e-money current account start-up Science Card

      James Millen in his lab

      King's physicists at Royal Society Summer Science Exhibition 2024

      The team will be part of a chorus of cutting-edge research being presented to the public over six days in July.

      Physics academics

      Experiment reveals light rotating objects in a direction never seen before

      Whirlpools of light exert force 100,000 times greater than seen before in possible breakthrough for the optical manipulation of matter and quantum...

      Silicon nanorods

      King's researchers celebrate the International Day of Light at Science Gallery London

      The Department of Physics and the London Institute for Advanced Light Technologies (LIALT) hosted 'Guiding Lights' at Science Gallery London on 16 May 2022 to...

      Guiding Lights @ the Science Gallery London

      Seeing the Unthinkable – King's Artists project combines quantum physics and art to explore the invisible

      A collaboration between an artist and a scientist that makes information ‘hidden’ inside objects accessible to anyone.

      An ion trap formed using an electric current of ancient Chinese currency

      Exploring collaborations between physicists and artists

      Science Gallery London exhibition highlights partnerships with King's artists in residence

      Seeing the Unthinkable

      Testing Ground opens at Science Gallery London

      New exhibition changes the ways we think about our invisible connections – to the cosmos, to nanoparticles, and to each other.

      Particle Shrine - Web Size

      Eleven new King's Artists projects exploring the theme of 'Intelligence'

      The 2021 King’s Artists cohort will be exploring the theme of ‘Intelligence’ in eleven new collaborative R&D projects across four King’s College London...

      Grey logo sign resembling an eye over a blue map of the Strand

      Quantum circuits with a levitated heart

      The latest development in this UKRI and European Research Council-funded project explores how the motion of charged microparticles can be detected and...

      Microparticles will be levitated within circuits and interfaced with quantum devices to act as nodes in a quantum network. Photo credit: Mark Mazaitis for Dr James Millen.

      Events

      24MayLight & Matter Wavelength Spectrum

      Light & Matter Seminar: Professor Edward Laird - A coherent mechanical oscillator pumped by a suspended quantum dot

      Part of the Light & Matter Series hosted by the Photonics & Nanotechnology Group

      Please note: this event has passed.

      10MayLight & Matter Wavelength Spectrum

      Light & Matter Seminar: Professor Jeremy Baumberg - Massively enhancing optical forces at the metal-molecule interface

      Part of the Light & Matter Series hosted by the Photonics & Nanotechnology Group

      Please note: this event has passed.

      16MayLondon Light Logo

      Guiding Lights

      The London Institute for Advanced Light Technology presents Guiding Lights at the Science Gallery London

      Please note: this event has passed.

      16AprThe Age of Light

      Age of Light [POSTPONED]

      A unique interdisciplinary symposium to celebrate the universal power of light

      Please note: this event has passed.