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MQT Posters

- + diff --git a/_speakers/AthulSambasivan.md b/_speakers/AthulSambasivan.md new file mode 100644 index 0000000..d6a5779 --- /dev/null +++ b/_speakers/AthulSambasivan.md @@ -0,0 +1,7 @@ +--- +name: Athul Sambasivan Rema +first_name: Athul S. +last_name: Rema +asociation: Universidad de Santiago de Chile +#status: invited +--- diff --git a/_speakers/EricHudson.md b/_speakers/EricHudson.md deleted file mode 100644 index 1c5df7d..0000000 --- a/_speakers/EricHudson.md +++ /dev/null @@ -1,7 +0,0 @@ ---- -name: Eric Hudson -first_name: Eric -last_name: Hudson -asociation: University of California Los Angeles -status: invited ---- \ No newline at end of file diff --git a/_speakers/FelipeIsaule.md b/_speakers/FelipeIsaule.md new file mode 100644 index 0000000..9f038ff --- /dev/null +++ b/_speakers/FelipeIsaule.md @@ -0,0 +1,6 @@ +--- +name: Felipe Isaule +first_name: Felipe +last_name: Isaule +asociation: Pontificia Universidad Católica de Chile +--- \ No newline at end of file diff --git a/_speakers/AdamDunkelberger.md b/_speakers/JeffOwrutsky.md similarity index 50% rename from _speakers/AdamDunkelberger.md rename to _speakers/JeffOwrutsky.md index 744a613..feaf93e 100644 --- a/_speakers/AdamDunkelberger.md +++ b/_speakers/JeffOwrutsky.md @@ -1,7 +1,7 @@ --- -name: Adam Dunkelberger -first_name: Adam -last_name: Dunkelberger +name: Jeffrey Owrutsky +first_name: Jeffrey +last_name: Owrutsky asociation: U.S. Naval Research Laboratory status: invited --- \ No newline at end of file diff --git a/_speakers/JohanTriana.md b/_speakers/JohanTriana.md index 2f48431..9473d2c 100644 --- a/_speakers/JohanTriana.md +++ b/_speakers/JohanTriana.md @@ -2,5 +2,5 @@ name: Johan Triana first_name: Johan last_name: Triana -asociation: Universidad de Santiago de Chile +asociation: Universidad Católica del Norte --- \ No newline at end of file diff --git a/_speakers/JohannesSchachenmayer.md b/_speakers/JohannesSchachenmayer.md new file mode 100644 index 0000000..90dbf65 --- /dev/null +++ b/_speakers/JohannesSchachenmayer.md @@ -0,0 +1,7 @@ +--- +name: Johannes Schachenmayer +first_name: Johannes +last_name: Schachenmayer +asociation: University of Strasbourg +status: invited +--- \ No newline at end of file diff --git a/_talks/FelipeIsaule.md b/_talks/FelipeIsaule.md new file mode 100644 index 0000000..e7adc30 --- /dev/null +++ b/_talks/FelipeIsaule.md @@ -0,0 +1,33 @@ +--- +name: One-dimensional Bose Polarons across harmonically confined optical lattices +speakers: + - Felipe Isaule +categories: + - Talk +--- +The progress in realising ultracold atomic mixtures has greatly revitalised the interest in +studying impurities immersed in quantum mediums [1]. Amongst them, Bose polarons, i.e. +impurities immersed in bosonic baths, have attracted increased attention since their +experimental realisation in 2016 [2, 3]. Following these developments, and motivated by +the possibility of trapping ultracold atoms in optical lattices [4], the theoretical study of +impurities in lattice configurations has emerged as a new platform for studying polaron +physics. In this direction, in the past few years, different studies of lattice Bose polarons +have revealed intriguing features across the superfluid-to-Mott insulator transition [5-7]. + +In this work, we study an impurity interacting with a bosonic bath and immersed in a +harmonically confined optical lattice. The harmonic confinement enables us to model a +realistic scenario and study polaron physics across superfluid and Mott domains. We +consider a one-dimensional configuration and study the system theoretically with DMRG +simulations for a large number of particles. We reveal that baths with Mott domains +produce an enlargement of the polaron cloud and the onset of a sudden orthogonality +catastrophe of the polaron quasiparticle. + +[1] C. Baroni, G. Lamporesi, and M. Zaccanti, arxiv:2405.14562 (2024). +[2] N.B. Jørgensen, L.Wacker, K.T. Skalmstang, M. M. Parish, J. Levinsen, R. S. +Christensen, G. M. Bruun and J. J. Arlt J. J., Phys. Rev. Lett. 117, 055302 (2016). +[3] M.-G. Hu., M. J. van de Graaff , D. Kedar, J. P. Corson, E. A. Cornell. and D. S. Ji , +Phys. Rev. Lett. 117, 055301 (2016). +[4] I. Bloch, Nat. Phys. 1, 23 (2005). +[5] V. E. Colussi, F. Caleffi, C. Menotti, and A. Recat, Phys. Rev. Lett 130, 173002 (2023). +[6] V. R. Yordanov and F. Isaule, J. Phys. B 56, 045301 (2023). +[7] F. Isaule, A. Rojo-Francàs, B. Juliá-Díaz, SciPost Phys. Core 7, 049 (2024). \ No newline at end of file diff --git a/_talks/athulsambasivan.md b/_talks/athulsambasivan.md index 561c120..7077129 100644 --- a/_talks/athulsambasivan.md +++ b/_talks/athulsambasivan.md @@ -1,38 +1,27 @@ --- -name: Computational Macroscopic QED Framework for Vibrational Polaritons +name: Manipulating the light-matter coupling of a plasmonic nanosphere and a dipole emitter with laser fields speakers: - Athul Sambasivan categories: - Talk --- -Athul S. Rema (a) and Felipe Herrera (a,b) +Near field plasmonic resonances that happen in metallic nanostructures provide a fascinating +way to engineer the interaction between light and matter [1]. It has been demonstrated that +the coupling between the cavity field and matter can lead to strong coupling with a single +emitter in plasmonic cavities [2]. We study the strongly coupled dynamical processes of a +dipole emitter coupled to near-field modes of a plasmonic nanosphere using macroscopic +quantum electrodynamics (QED) and explore the possibility of manipulating the photonic +local density of states by driving the system with narrowband laser sources. To achieve this, +we develop a pseudo-mode representation of the electromagnetic dyadic Green’s tensor of a +nanosphere with dipolar and higher-order plasmonic resonant modes, to build semi-analytical +solutions of the set of coupled non-Markovian integro-differential equations (IDE) that +describe the laser-driven dynamics of material dipoles and photonic degrees of freedom. We +solve for experimentally relevant photonic and dipolar observables for a single dipole emitter +in a resonant optical nanocavity and compare the results with recent phenomenological +Markovian models developed for molecular polaritons [3]. -(a) Department of Physics, Universidad de Santiago de Chile, Av. Victor Jara 3493, Santiago, Chile - -(b) Millennium Institute for Research in Optics, Chile - -Near-resonant molecule-field interactions have attracted significant attention in chemical -physics and quantum optics [1,2]. We study the quantum dynamics of a molecular vibration -coupled to near-field modes of an infrared nanoresonator using macroscopic quantum -electrodynamics (QED). Nanophotonic structures vary in geometry and material properties, -which makes the calculations of interaction dynamics challenging [3]. We use the -electromagnetic Green’s tensor of the nanophotonic structure to construct frequency and -position dependent interaction Hamiltonians in macroscopic QED that are used to derive and -numerically solve the system of non-Markovian integro-differential equations (IDE) that -describe the dynamics of vibrational and photonic degrees of freedom in strong coupling. -The material and dipole parameters are encoded in the structure of the kernel function of the -IDE. We solve for photonic and vibrational observables for a single non-polar anharmonic -vibration in a resonant infrared nanocavity and compare the results with recent -phenomenological Markovian models developed for vibrational polaritons [4], to better -understand the reach and limitations of reduced Markovian quantum optics models to -describe currently available experiments. - -[1] F. Herrera and J. Owrutsky, J. Chem. Phys. 152, 100902 (2020). - -[2] T. W. Ebbesen, Acc. Chem. Res. 49, 11, 2403–2412, (2016). - -[3] J. Feist, A. I. Fernandez-Dominguez, and Francisco J. Garcia-Vidal. Nanophotonics, 10, 477- 489, (2021). - -[4] J. Triana, M. Arias, J. Nishida, E. Muller, R. Wilcken, S. C. Johnson, A. Delgado, M. B. Raschke, F. -Herrera, Semi-empirical quantum optics for mid-infrared molecular nanophotonics, J. Chem. Phys. 156, -124110, 2022. \ No newline at end of file +[1] T. W. Ebbesen, Acc. Chem. Res. 49, 11, 2403–2412, (2016) +[2] A. Delga, J. Feist, J. Bravo-Abad, and F. J. Garcia-Vidal, Phys. Rev. Lett. 112, 253601, +(2014) +[3] J. Triana, M. Arias, J. Nishida, E. Muller, R. Wilcken, S. C. Johnson, A. Delgado, M. B. +Raschke & F. Herrera, J. Chem. Phys. 156, 124110, (2022). \ No newline at end of file diff --git a/_talks/johantriana.md b/_talks/johantriana.md index ea90cb5..53336d8 100644 --- a/_talks/johantriana.md +++ b/_talks/johantriana.md @@ -1,24 +1,16 @@ --- -name: Controlling the infrared vacuum field via molecular polaritons in the strong coupling regime +name: The electromagnetic vacuum enhances infrared photodissociation under strong light-matter coupling speakers: - Johan Triana categories: - Talk --- -Johan F. Triana (a), Mauricio Arias (b), and Felipe Herrera (a,c) -(a) Departamento de Física, Universidad de Santiago de Chile, Santiago, Chile +Vibrational light-matter coupling is currently one of the most studied research topics due to the unexpected modifications of chemical reaction rates and branching ratios at room temperature. Most heoretical efforts are mainly focused on describing previous experimental measurements in the many-body regime [1], which opens a great opportunity to explore the single-molecule scenario in the full quantum regime [2]. We study the photodissociation dynamics of a single molecular mode coupled to an infrared electromagnetic vacuum in the vibrational strong light-matter coupling for two driven scenarios, i) molecule-driving [] and ii) nanocavity-driving [] (see figure). -(b) Departamento de Física, Universidad de Concepción, Concepción, Chile +We show a significant enhancement of intracavity dissociation probabilities relative to free space scenarios for the same laser intensities. Similar dissociation probabilities are obtained for the cavity-driving scenario with much lower laser intensities than the implemented in the molecule-driving case [3]. Results are based on the modified ladder climbing process in the polariton quasi-continuum below the dissociation threshold, in comparison with the energy levels scheme of a single anharmonic mode [4]. Our work extends the tools to control dissociation yields of small molecules in confined infrared electromagnetic environments. -(c) ANID-Millennium Institute for Research in Optics, Chile - -The generation of non-classical light and optical phase control are two areas of intense research in quantum optics and nanophotonics. Although efforts have primarily focused on the optical regime, novel nanoscale devices offer new possibilities for studying quantum optical effects in the mid-infrared region. - -We propose novel schemes for modifying the photon statistics of an electromagnetic field of an infrared Fabry-Pérot cavity by driving one cavity mirrors with ultrafast UV pulses that adiabatically modulate the cavity resonance frequency. Under strong coupling of the mid-infrared vacuum with molecular vibrations, we demonstrate that large modifications of the Mandel factor and squeezing parameter are possible by initializing the system in the ground and first excited polariton eigenstates [1]. - -For open cavities architectures such as nanoantennas with tip nanoprobes, we show that a new type of infrared blockade effect can be exploited to generate nonlinear coherent phase shift of the infrared near field, with the shift depending on the power of an ultrafast infrared driving pulse [2]. Our work opens new routes for designing infrared quantum devices with possible applications in quantum metrology, quantum information processing and quantum state preparation. - -[1] J.F. Triana and F. Herrera, Ultrafast modulation of vibrational polaritons for controlling the quantum field statistics at mid-infrared frequencies, New J. Phys., 24, 023008 (2022) - -[2] J. F. Triana, M. Arias, F. Herrera, et. al., Semi-empirical quantum optics for mid-infrared molecular nanophotonics, J. Chem. Phys., 156, 124110 (2022) +[1] W. Ahn, J.F. Triana, F. Recabal, F. Herrera and B. Simpkins, Science 380, 1165 (2023). +[2] F. Herrera, J. Owrutsky. The Journal of Chemical Physics, 152, 100902 (2020). +[3] J.F. Triana, F. Herrera, In preparation (2024). +[4] B. Carmeli, A. Nitzan. The Journal of Chemical Physics, 72, 2070 (1980). \ No newline at end of file diff --git a/assets/BoA MQT2024.pdf b/assets/BoA MQT2024.pdf new file mode 100644 index 0000000..1a0a563 Binary files /dev/null and b/assets/BoA MQT2024.pdf differ