Welcome to the Manchester Noisy Quantum Systems Group (MaNQS)
We work on the theory of open quantum systems, with an emphasis on developing new methods applicable beyond
Applications range from solid-state quantum devices to biomolecular systems.
Photon Science Institute and School of Physics & Astronomy, University of Manchester
Zach Blunden-Codd (PhD student) Dave Newman (PhD student) Henry Maguire (PhD student)
Job Opportunity: Research Associate - Theory of Open Quantum Systems: See https://www.jobs.manchester.ac.uk/displayjob.aspx?jobid=11012 for further particulars
In this EPSRC-funded position, you will specialise in developing the theory of the dynamics and thermodynamics of open quantum systems beyond weak-coupling regimes, with application to solid-state and molecular systems.
New Group Member: Welcome to Henry Maguire who has joined the group as a PhD student.
Congratulations to Jake on passing his PhD viva!
New Publication: Energy transfer in structured and unstructured environments: master equations beyond the Born-Markov approximations, Jake Iles-Smith, Arend G. Dijkstra, Neill Lambert and Ahsan Nazir, J. Chem. Phys. 144, 044110 (2016) – We explore excitonic energy transfer dynamics in a molecular dimer system coupled to both structured and unstructured oscillator environments, using the reaction-coordinate formalism to go beyond weak and Markovian system-environment interactions.
New Publication: Vibronic resonances facilitate excited state coherence in light harvesting proteins at room temperature, Fabio Novelli, Ahsan Nazir, Gethin H. Richards, Ashkan Roozbeh, Krystyna E. Wilk, Paul M.G. Curmi, Jeffrey A. Davis, J. Phys. Chem. Lett. 6, 4573 (2015) – In this collaborative work with Jeff DavisÕ group in Swinburne, we identify coherent superpositions in photosynthetic light-harvesting complexes facilitated by strong vibronic mixing among excited states.
New Group Member: Welcome to Dave Newman who has joined the group as a PhD student.
New Preprint: Quantum correlations of light and matter through environmental transitions, Jake Iles-Smith and Ahsan Nazir, arXIv:1412.6044 – Here we show that quantum light-matter correlations may be generated through interactions with a thermal environment in cavity QED systems.
New Publication: Dissipation enhanced vibrational sensing in an olfactory molecular switch, A. Checinska, F. A. Pollock, L. Heaney, A. Nazir, J. Chem. Phys. 142, 025102 (2015) – We demonstrate that dissipation can play a constructive role in facilitating sensitive and selective operation in molecular switch devices.
Congratulations to Jake on his first paper! Environmental dynamics, non-Gaussianity, and the emergence of noncanonical equilibrium states in open quantum systems, Jake Iles-Smith, Neill Lambert, Ahsan Nazir, Phys. Rev. A 90, 032114 (2014)
Experiment-theory collaboration leads to a new PRL: Temperature-dependent Mollow triplet spectra from a single quantum dot: Rabi frequency renormalisation and sideband linewidth insensitivity, Yu-Jia Wei, Yu He, Yu-Ming He, Chao-Yang Lu, Jian-Wei Pan, Christian Schneider, Martin Kamp, Sven Hfling, Dara P. S. McCutcheon, Ahsan Nazir, Phys. Rev. Lett. 113, 097401 (2014)
A. Checinska, F. A. Pollock, L. Heaney, A. Nazir, J. Chem. Phys. 142, 025102 (2015)
Jake Iles-Smith, Neill Lambert, Ahsan Nazir, Phys. Rev. A 90, 032114 (2014)
Yu-Jia Wei, Yu He, Yu-Ming He, Chao-Yang Lu, Jian-Wei Pan, Christian Schneider, Martin Kamp, Sven Hfling, Dara P. S. McCutcheon, Ahsan Nazir, Phys. Rev. Lett. 113, 097401 (2014)
S. Bera, A. Nazir, A. W. Chin, H. U. Baranger, S. Florens, Phys. Rev. B 90, 075110 (2014)
S. Bera, S. Florens, H. U. Baranger, N. Roch, A. Nazir, A. W. Chin, Phys. Rev. B 89, 121108(R) (2014) (chosen as an EditorÕs Suggestion)
D. P. S. McCutcheon and A. Nazir, Phys. Rev. Lett. 110, 217401 (2013)
F. A. Pollock, D. P. S. McCutcheon, B. W. Lovett, E. M. Gauger, and A. Nazir, New J. Phys. 15, 075018 (2013) (invited special issue article)
D. A. Herrera-Mart, A. Nazir, and S. D. Barrett, Phys. Rev. B 88, 094512 (2013)
Please see Google Scholar for a full list: http://scholar.google.co.uk/citations?user=IuYH1HcAAAAJ&hl=en
Fabio Novelli, Ahsan Nazir, Gethin H. Richards, Ashkan Roozbeh, Krystyna E. Wilk, Paul M.G. Curmi, Jeffrey A. Davis, arXIv:1503.00251
Jake Iles-Smith and Ahsan Nazir, arXIv:1412.6044
Full list of arXiv papers: http://arxiv.org/find/all/1/all:+AND+nazir+quantum/0/1/0/all/0/1