42 citations · 140 across the 15 of their papers we have counts for
18 papers
Absence of a Superradiant Phase Transition in Dirac Landau Polaritons
Elsa Jöchl, Felix Helmrich, Frieder Lindel +6
One of the most striking predictions in cavity quantum electrodynamics is the condensation of photons into a macroscopically populated ground state, the so-called superradiant phas…
Optimally driving multi-photon transitions in the perturbative single-mode regime
Frieder Lindel, Stefan Yoshi Buhmann, Andreas Buchleitner +1
The rate of -photon transitions in matter, induced by an incident light field, depends on the field's th order coherence function. Consequently, the coherence properties of t…
Casimir Stabilization of Fluctuating Electronic Nematic Order
Ola Carlsson, Sambuddha Chattopadhyay, Jonathan B. Curtis +4
Vacuum cavity control of quantum materials is the engineering of quantum materials systems through electromagnetic zero-point fluctuations. In this work we articulate a generic mec…
Multi-mode Deep Strong Coupling in a Multi Quantum Well Fabry-Perot Cavity
Lucy Hale, Johan Andberger, Ethan Koskas +4
We present multi-mode deep-strong coupling in a multi-quantum well (N=166) heterostructure. The heterostructure itself acts as a Fabry-Perot cavity, for which the even cavity modes…
Close encounters between periodic light and periodic arrays of quantum emitters
Frieder Lindel, Carlos J. Sánchez Martínez, Johannes Feist +1
We introduce crystal polaritons, hybrid excitations formed when the collective excitations of a periodic quantum-emitter array strongly couple to the resonant Bloch modes of a meta…
Experimentally separating vacuum fluctuations from source radiation
Alexa Herter, Frieder Lindel, Laura Gabriel +2
The unique distinction between vacuum-field and source-radiation induced effects in processes such as the Lamb shift, Casimir forces or spontaneous emission, remains unresolved eve…
Spatially resolved photon statistics of general nanophotonic systems
Maksim Lednev, Diego Fernández de la Pradilla, Frieder Lindel +3
While experimental measurements of photon correlations have become routine in laboratories, theoretical access to these quantities for the light generated in complex nanophotonic d…
Quantized Embedding Approaches for Collective Strong Coupling -- Connecting ab initio and macroscopic QED to Simple Models in Polaritonics
Frieder Lindel, Dominik Lentrodt, Stefan Yoshi Buhmann +1
Collective light-matter interactions have been used to control chemistry and energy transfer, yet accessible approaches that combine ab initio methodology with large many-body quan…
General theory of cavity-mediated interactions between low-energy matter excitations
Carlos J. Sánchez Martínez, Frieder Lindel, Francisco J. García-Vidal +1
The manipulation of low-energy matter properties such as superconductivity, ferromagnetism and ferroelectricity via cavity quantum electrodynamics engineering has been suggested as…
Entanglement Harvesting from Electromagnetic Quantum Fields
Frieder Lindel, Alexa Herter, Valentin Gebhart +2
In many states of the quantum electromagnetic field, including the vacuum state, entanglement exists between different space-time regions -- even space-like separated ones. These c…
Probing Vacuum Field Fluctuations and Source Radiation Separately in Space and Time
Frieder Lindel, Alexa Herter, Jérôme Faist +1
Source radiation (radiation reaction) and vacuum-field fluctuations can be seen as two inseparable contributions to processes such as spontaneous emission, the Lamb shift, or the C…
Quantized fields for optimal control in the strong coupling regime
Frieder Lindel, Edoardo G. Carnio, Stefan Yoshi Buhmann +1
We tailor the quantum statistics of a bosonic field to deterministically drive a quantum system into a target state. Experimentally accessible states of the field achieve good cont…
Detection of quantum-vacuum field correlations outside the light cone
Francesca Fabiana Settembrini, Frieder Lindel, Alexa Marina Herter +2
According to quantum field theory, empty space -- the ground state of the theory with all real excitations removed -- is not empty at all, but filled with quantum-vacuum fluctuatio…
Probing the Purcell effect without radiative decay: Lessons in the frequency and time domains
Frieder Lindel, Francesca Fabiana Settembrini, Robert Bennett +1
The microscopic processes underlying electro-optic sampling of quantum-vacuum fluctuations are discussed, leading to the interpretation of these experiments in terms of an exchange…
The Langevin Noise Approach for Lossy Media and the Lossless Limit
George W. Hanson, Frieder Lindel, Stefan Yoshi Buhmann
The Langevin noise approach for quantization of macroscopic electromagnetics for three-dimensional, inhomogeneous environments is compared with normal mode quantization. Recent wor…
Theory of quantum-vacuum detection
Frieder Lindel, Robert Bennett, Stefan Yoshi Buhmann
Recent progress in electro-optic sampling has allowed direct access to the fluctuations of the electromagnetic ground state. Here, we present a theoretical formalism that allows fo…
Inducing and controlling rotation on small objects using photonic topological materials
F. Lindel, G. W. Hanson, M. Antezza +1
Photonic topological insulator plates violate Lorentz reciprocity which leads to a directionality of surface-guided modes. This in-plane directionality can be imprinted via an appl…
Casimir-Lifshitz Force for Nonreciprocal Media and Applications to Photonic Topological Insulators
Sebastian Fuchs, Frieder Lindel, Roman V. Krems +3
Based on the theory of macroscopic quantum electrodynamics, we generalize the expression of the Casimir force for nonreciprocal media. The essential ingredient of this result is th…