Analog of superradiant emission in thermal emitters

Zhou, Ming; Yi, Soongyu; Luk, Ting S.; Gan, Qiaoqiang; Fan, Shanhui; Yu, Zongfu

doi:10.1103/physrevb.92.024302

Cited by 24 publications

(52 citation statements)

References 45 publications

(50 reference statements)

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“…Such models can be employed for studying superradiant thermal emitter assemblies [39,40]. Second, with mixed quantum-classical electrodynamics, one will soon be able to simulate exciting phenomena in the field of nanoplasmonics, including thermal excitation of surface plasmon [41,42] and thermalization of plasmon-exciton polaritons [43].…”

Section: Discussionmentioning

confidence: 99%

Understanding detailed balance for an electron-radiation system through mixed quantum-classical electrodynamics

Chen

Nitzan

et al. 2019

Phys. Rev. A

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We investigate detailed balance for a quantum system interacting with thermal radiation within mixed quantum-classical theory. For a two-level system coupled to classical radiation fields, three semiclassical methods are benchmarked: (1) Ehrenfest dynamics over-estimate the excited state population at equilibrium due to the failure of capturing vacuum fluctuations. (2) The coupled Maxwell-Bloch equations, which supplement Ehrenfest dynamics by damping at the full golden rule rate, under-estimate the excited state population due to double-counting of the self-interaction effect.(3) Ehrenfest+R dynamics recover detailed balance and the correct thermal equilibrium by enforcing the correct balance between the optical excitation and spontaneous emission of the quantum system. These results highlight the fact that, when properly designed, mixed quantum-classical electrodynamics can simulate thermal equilibrium in the field of nanoplasmonics.

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Section: Discussionmentioning

confidence: 99%

Understanding detailed balance for an electron-radiation system through mixed quantum-classical electrodynamics

Chen

Nitzan

et al. 2019

Phys. Rev. A

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“…These waves induce the radiative interactions among the TLSs. They are responsible for collective effects, such as the superradiant spontaneous emission [34][35][36][37][38].…”

Section: Winger Time Delaymentioning

confidence: 99%

Quantum scattering theory of a single-photon Fock state in three-dimensional spaces

Liu

Zhou

2016

Opt. Lett.

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“…This peculiar behavior was also noted in a different superradiant system described in Ref. 30, although it was not explicitly identified as a result of the strong coupling.…”

Section: El Imentioning

confidence: 54%

Strong and ultrastrong coupling with free-space radiation

et al. 2016

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Strong and ultra-strong light-matter coupling are remarkable phenomena of quantum electrodynamics occurring when the interaction between a matter excitation and the electromagnetic field cannot be described by usual perturbation theory. This is generally achieved by coupling an excitation with large oscillator strength to the confined electromagnetic mode of an optical microcavity. In this work we demonstrate that strong/ultra-strong coupling can also take place in the absence of optical confinement. We have studied the non-perturbative spontaneous emission of collective excitations in a dense two-dimensional electron gas that supperradiantly decays into free space. By using a quantum model based on the input-output formalism, we have derived the linear optical properties of the coupled system and demonstrated that its eigenstates are mixed light-matter particles, like in any system displaying strong or ultra-strong light-matter interaction. Moreover, we have shown that in the ultra-strong coupling regime, i.e. when the radiative broadening is comparable to the matter excitation energy, the commonly used rotating-wave and Markov approximations yield unphysical results. Finally, the input-output formalism has allowed us to prove that Kirchhoff's law, describing thermal emission properties, applies to our system in all the light-matter coupling regimes considered in this work.

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Analog of superradiant emission in thermal emitters

Cited by 24 publications

References 45 publications

Understanding detailed balance for an electron-radiation system through mixed quantum-classical electrodynamics

Understanding detailed balance for an electron-radiation system through mixed quantum-classical electrodynamics

Quantum scattering theory of a single-photon Fock state in three-dimensional spaces

Strong and ultrastrong coupling with free-space radiation

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