Doctorat en Fotònica

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  • Inverse-design of non-Hermitian potentials for light management 

    Botey Cumella, Muriel; Ahmed Waseem, Waqas Waseem; Herrero Simon, Ramon; Wu, Yina; Staliunas, Kestutis (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2022)
    Conference report
    Open Access
    In this paper, we propose a general inverse-design strategy based on genetic algorithm optimization to achieve ‘on demand’ manipulation of light in one-dimensional (1D) and two-dimensional (2D) non-Hermitian systems. The ...

  • Attosecond core-level spectroscopy reveals the flow of excitation in a material between light, carriers and phonons 

    Sidiropoulos, Themistoklis P. H.; Palo, Nicola di; Rivas Barragan, Daniel; Severino, Stefano; Reduzzi, Maurizio; Nandy, Biplob; Bauerhenne, Bernd; Krylow, Sergej; Vasileiadis, Thomas; Biegert, Jens (Institute of Electrical and Electronics Engineers (IEEE), 2022)
    Conference report
    Open Access
    We use attosecond core-level X-ray spectroscopy to disentangle the spectral and dynamical signatures of energy conversion pathways between photons, charge carriers and the lattice in graphite with attosecond precision and ...

  • Magnetic properties and quench dynamics of two interacting ultracold molecules in a trap 

    Dawid Lekowska, Anna Maria; Tomza, Michal (Royal Society of Chemistry (RSC), 2020)
    Article
    Open Access
    We theoretically investigate the magnetic properties and nonequilibrium dynamics of two interacting ultracold polar and paramagnetic molecules in a one-dimensional harmonic trap in external electric and magnetic fields. ...

  • Quantum channel marginal problem 

    Hsieh, Chung Yun; Lostaglio, Matteo; Acín dal Maschio, Antonio (American Physical Society, 2022-03-31)
    Article
    Open Access
    Given a set of local dynamics, are they compatible with a global dynamics? We systematically formulate these questions as quantum channel marginal problems. These problems are strongly connected to the generalization of ...

  • Entanglement preserving local thermalization 

    Hsieh, Chung Yun; Lostaglio, Matteo; Acín dal Maschio, Antonio (American Physical Society, 2020-03-30)
    Article
    Open Access
    We investigate whether entanglement can survive the thermalization of subsystems. We present two equivalent formulations of this problem: (1) Can two isolated agents, accessing only preshared randomness, locally thermalize ...

  • Communication, dynamical resource theory, and thermodynamics 

    Hsieh, Chung Yun (2021-05-12)
    Article
    Open Access
    Recently, new insights have been obtained by jointly studying communication and resource theory. This interplay consequently serves as a potential platform for interdisciplinary studies. To continue this line, we analyze ...

  • Resource preservability 

    Hsieh, Chung Yun (2020-03-19)
    Article
    Open Access
    Resource theory is a general, model-independent approach aiming to understand the qualitative notion of resource quantitatively. In a given resource theory, free operations are physical processes that do not create the ...

  • Single-domain Bose condensate magnetometer achieves energy resolution per bandwidth below h 

    Coop, Simon; Palacios, Silvana; Gómez Kabelka, Pau; Zamora Zamora, Roberto; Mazzinghi, Chiara; Mitchell, Morgan W. (2022-02-08)
    Article
    Open Access
    We present a magnetic sensor with energy resolution per bandwidth ER < h. We show how a 87Rb single-domain spinor Bose– Einstein condensate, detected by nondestructive Faraday rotation probing, achieves single-shot ...

  • Interferometric measurement of interhyperfine scattering lengths in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mmultiscripts><mml:mi>Rb</mml:mi><mml:mprescripts /><mml:none /><mml:mn>87</mml:mn></mml:mmultiscripts></mml:math> 

    Mazzinghi, Chiara; Gómez Kabelka, Pau; Martin, Ferran; Coop, Simon; Palacios, Silvana; Mitchell, Morgan W. (American Physical Society (APS), 2019-09-10)
    Article
    Open Access
    We present interferometeric measurements of the f = 1 to f = 2 interhyperfine scattering lengths in a single-domain spinor Bose-Einstein condensate of 87Rb. The interhyperfine interaction leads to a strong and state-dependent ...

  • Cavity-enhanced polarization rotation measurements for low-disturbance probing of atoms 

    Mazzinghi, Chiara; Benedicto Orenes, Daniel; Gómez Kabelka, Pau; Lucivero, Vito Giovanni; Aybar, Enes; Gugnani, Stuti; Mitchell, Morgan W. (2021-12-06)
    Article
    Open Access
    We propose and demonstrate cavity-enhanced polarization-rotation measurement as a means to detect magnetic effects in transparent media with greater sensitivity at equal optical disturbance to the medium. Using the Jones ...

  • Bose-Einstein condensate comagnetometer 

    Mazzinghi, Chiara; Gómez Kabelka, Pau; Martin, Ferran; Benedicto Orenes, Daniel; Palacios, Silvana; Mitchell, Morgan W. (American Institute of Physics (AIP), 2020-04-29)
    Article
    Open Access
    We describe a comagnetometer employing the f ¼ 1 and f ¼ 2 ground state hyperfine manifolds of a 87Rb spinor Bose-Einstein condensate as colocated magnetometers. The hyperfine manifolds feature nearly opposite gyromagnetic ...

  • Scalable and tunable periodic graphene nanohole arrays for mid-infrared plasmonics 

    Gopalan, Kavitha K.; Paulillo, Bruno; Mackenzie, David M. A.; Rodrigo, Daniel; Bareza, Néstor; Whelan, Patrick R.; Shivayogimath, Abhay; Pruneri, Valerio (2018-09-12)
    Article
    Open Access
    Despite its great potential for a wide variety of devices, especially mid-infrared biosensors and photodetectors, graphene plasmonics is still confined to academic research. A major reason is the fact that, so far, ...

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