133 citations · 317 across the 11 of their papers we have counts for
12 papers
Phonon-mediated dark to bright plasmon conversion
Benjamin Rousseaux, Yanko Todorov, Angela Vasanelli +1
The optical response of a matter excitation embedded in nanophotonic devices is commonly described by the Drude-Lorentz model. Here, we demonstrate that this widely used approach f…
Upper bounds on collective light-matter coupling strength with plasmonic meta-atoms
Evgeny Ryabkov, Ivan Kharichkin, Sophia Guzik +3
Ultrastrong coupling between optical and material excitations is a distinct regime of electromagnetic interaction that enables a variety of intriguing physical phenomena. Tradition…
Propagating single photons from an open cavity: Description from universal quantization
Astghik Saharyan, Benjamin Rousseaux, Zsolt Kis +2
Over the last decades, quantum optics has evolved from high quality factor cavities in the early experiments toward new cavity designs involving leaky modes. Despite very reliable…
Unconventional saturation effects at intermediate drive in a lossy cavity coupled to few emitters
Therese Karmstrand, Benjamin Rousseaux, Anton Frisk Kockum +2
Recent technological advancements have enabled strong light-matter interaction in highly dissipative cavity-emitter systems. However, in these systems, which are well described by…
Transmon in a semi-infinite high-impedance transmission line -- appearance of cavity modes and Rabi oscillations
Emely Wiegand, Benjamin Rousseaux, Göran Johansson
In this letter, we investigate the dynamics of a single superconducting artificial atom capacitively coupled to a transmission line with a characteristic impedance comparable or la…
Ultrastrong coupling between nanoparticle plasmons and cavity photons at ambient conditions
Denis G. Baranov, Battulga Munkhbat, Elena Zhukova +6
Ultrastrong coupling is a distinct regime of electromagnetic interaction that enables a rich variety of intriguing physical phenomena. Traditionally, this regime has been reached b…
A semiclassical analysis of dark state transient dynamics in waveguide circuit QED
E. Wiegand, B. Rousseaux, G. Johansson
The interaction between superconducting qubits and one-dimensional microwave transmission lines has been studied experimentally and theoretically in the past two decades. In this w…
Non-hermitian Hamiltonian description for quantum plasmonics: from dissipative dressed atom picture to Fano states
H. Varguet, B. Rousseaux, D. Dzsotjan +3
We derive effective Hamiltonians for a single dipolar emitter coupled to a metal nanoparticle (MNP) with particular attention devoted to the role of losses. For small particles siz…
Comparative study of plasmonic antennas for strong coupling and quantum nonlinearities with single emitters
Benjamin Rousseaux, Denis G. Baranov, Mikael Käll +2
Realizing strong coupling between a single quantum emitter (QE) and an optical cavity is of crucial importance in the context of various quantum optical applications. While Rabi sp…
Quantum Plasmonics with multi-emitters: Application to adiabatic control
A. Castellini, H. R. Jauslin, B. Rousseaux +4
We construct mode-selective effective models describing the interaction of N quantum emitters (QEs) with the localised surface plasmon polaritons (LSPs) supported by a spherical me…
Mode-selective quantization and multimodal effective models for spherically layered systems
D. Dzsotjan, B. Rousseaux, H. R. Jauslin +3
We propose a geometry-specific, mode-selective quantization scheme in coupled field-emitter systems which makes it easy to include material and geometrical properties, intrinsic lo…
Dressed states of a quantum emitter strongly coupled to a metal nanoparticle
H. Varguet, B. Rousseaux, D. Dzsotjan +3
Hybrid molecular-plasmonic nanostructures have demonstrated their potential for surface enhanced spectroscopies, sensing or quantum control at the nanoscale. In this work, we inves…