Vacuum Bloch–Siegert shift in Landau polaritons with ultra-high cooperativity

Terahertz Light–Matter Interaction beyond Unity Coupling Strength

(2017) Andreas Bayer et al.   NANO LETTERS

Asymmetry in polariton dispersion as function of light and matter frequencies in the ultrastrong coupling regime

(2017) Curdin Maissen et al.   NEW JOURNAL OF PHYSICS

Large, valley-exclusive Bloch-Siegert shift in monolayer WS2

(2017) Edbert J. Sie et al.   SCIENCE

Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime

(2016) P. Forn-Díaz et al.   Nature Physics

Superconducting qubit–oscillator circuit beyond the ultrastrong-coupling regime

(2016) Fumiki Yoshihara et al.   Nature Physics

Collective non-perturbative coupling of 2D electrons with high-quality-factor terahertz cavity photons

(2016) Qi Zhang et al.   Nature Physics

Achromatic prism-type wave plate for broadband terahertz pulses

(2014) Yoichi Kawada et al.   OPTICS LETTERS

Stability of polarizable materials against superradiant phase transition

(2014) Motoaki Bamba et al.   PHYSICAL REVIEW A

Ultrastrong coupling in the near field of complementary split-ring resonators

(2014) Curdin Maissen et al.   PHYSICAL REVIEW B

Superradiant Decay of Cyclotron Resonance of Two-Dimensional Electron Gases

(2014) Qi Zhang et al.   PHYSICAL REVIEW LETTERS

System-environment coupling derived by Maxwell's boundary conditions from the weak to the ultrastrong light-matter-coupling regime

(2013) Motoaki Bamba et al.   PHYSICAL REVIEW A

Drude Weight, Cyclotron Resonance, and the Dicke Model of Graphene Cavity QED

(2012) Luca Chirolli et al.   PHYSICAL REVIEW LETTERS

Cavity QED of the Graphene Cyclotron Transition

(2012) David Hagenmüller et al.   PHYSICAL REVIEW LETTERS

Ultrastrong Coupling of the Cyclotron Transition of a 2D Electron Gas to a THz Metamaterial

(2012) G. Scalari et al.   SCIENCE

Observation of hybrid plasmon-photon modes in microwave transmission of coplanar microresonators

(2011) V. M. Muravev et al.   PHYSICAL REVIEW B

Circuit quantum electrodynamics in the ultrastrong-coupling regime

(2010) T. Niemczyk et al.   Nature Physics

Qubit-oscillator systems in the ultrastrong-coupling regime and their potential for preparing nonclassical states

(2010) S. Ashhab et al.   PHYSICAL REVIEW A

Ultrastrong coupling between a cavity resonator and the cyclotron transition of a two-dimensional electron gas in the case of an integer filling factor

(2010) David Hagenmüller et al.   PHYSICAL REVIEW B

Stark Effect and Generalized Bloch-Siegert Shift in a Strongly Driven Two-Level System

(2010) Jani Tuorila et al.   PHYSICAL REVIEW LETTERS

Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime

(2010) P. Forn-Díaz et al.   PHYSICAL REVIEW LETTERS

No-go theorem for superradiant quantum phase transitions in cavity QED and counter-example in circuit QED

(2010) Pierre Nataf et al.   Nature Communications

Signatures of the ultrastrong light-matter coupling regime

(2009) Aji A. Anappara et al.   PHYSICAL REVIEW B