250 citations · 514 across the 13 of their papers we have counts for
13 papers
Effective Hamiltonians in Cavity and Waveguide QED from Transition-Operator Diagrammatic Perturbation Theory
Mohamed Meguebel, Maxime Federico, Louis Garbe +2
We propose an adiabatic-elimination formalism in the dispersive regime based on a transition-centric perturbation theory. The perturbative expansion is recast into a diagrammatic f…
Transitions as the Native Objects of Dispersive Light-Matter Dynamics
Mohamed Meguebel, Maxime Federico, Louis Garbe +2
We introduce a framework where light-matter transitions, rather than states, are the primary dynamical objects. Successive compositions of elementary transitions yield multiphoton…
Refrigeration of a 1D gas of microwave photons
Lukas Schamriß, Louis Garbe, Peter Rabl
We discuss a conceptually simple scheme for cooling a one dimensional gas of microwave photons in a superconducting transmission line. By shunting one end of the transmission line…
Excitable quantum systems: the bosonic avalanche laser
Louis Garbe, Peter Rabl
We investigate the dynamics of a lasing system driven by a current of bosonic (quasi-)particles via a dissipative three-mode mixing process. A semi-classical analysis of this syste…
The bosonic skin effect: boundary condensation in asymmetric transport
Louis Garbe, Yuri Minoguchi, Julian Huber +1
We study the incoherent transport of bosonic particles through a one dimensional lattice with different left and right hopping rates, as modelled by the asymmetric simple inclusion…
Non-Gaussian superradiant transition via three-body ultrastrong coupling
Fabrizio Minganti, Louis Garbe, Alexandre Le Boité +1
We introduce a class of quantum optical Hamiltonian characterized by three-body couplings, and propose a circuit-QED scheme based on state-of-the-art technology that implements the…
Exponential precision by reaching a quantum critical point
Louis Garbe, Obinna Abah, Simone Felicetti +1
Quantum metrology shows that by exploiting nonclassical resources it is possible to overcome the fundamental limit of precision found for classical parameter-estimation protocols.…
Critical Quantum Metrology with Fully-Connected Models: From Heisenberg to Kibble-Zurek Scaling
Louis Garbe, Obinna Abah, Simone Felicetti +1
Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg…
Phase Transitions in Light-Matter Systems for Quantum Sensing
Louis Garbe
When light and matter are weakly coupled, they can be described as two distinctive systems exchanging quanta of energy. By contrast, for very large coupling strength, the systems h…
Dissipation-induced bistability in the two-photon Dicke model
Louis Garbe, Peregrine Wade, Fabrizio Minganti +3
The Dicke model is a paradigmatic quantum-optical model describing the interaction of a collection of two-level systems with a single bosonic mode. Effective implementations of thi…
Critical Quantum metrology with a finite-component quantum phase transition
Louis Garbe, Matteo Bina, Arne Keller +2
Physical systems close to a quantum phase transition exhibit a divergent susceptibility, suggesting that an arbitrarily-high precision may be achieved by exploiting quantum critica…
Metrological advantage at finite temperature for Gaussian phase estimation
Louis Garbe, Simone Felicetti, Perola Milman +2
In the context of phase estimation with Gaussian states, we introduce a quantifiable definition of metrological advantage that takes into account thermal noise in the preparation p…
Superradiant phase transition in the ultrastrong coupling regime of the two-photon Dicke model
L. Garbe, I. L. Egusquiza, E. Solano +4
The controllability of current quantum technologies allows to implement spin-boson models where two-photon couplings are the dominating terms of light-matter interaction. In this c…