Sisyphus Thermalization of Photons in a Cavity-Coupled Double Quantum Dot

Gullans, Michael; Stehlik, J.; Liu, Y.-Y.; Eichler, Christopher; Petta, J. R.

doi:10.1103/physrevlett.117.056801

Cited by 17 publications

(18 citation statements)

References 54 publications

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“…Looking beyond the intriguing interference patterns that are observed, the statistics of the light generated by the driven DQD is predicted to be a sensitive function of ω g and eV ac [19]. This means that a single system could span the spectrum of incoherent thermal emission, coherent emision (lasing), and even antibunched light by simply changing the drive parameters.…”

Section: Discussionmentioning

confidence: 99%

“…Such tunability is highly desirable and could be used for a detailed study of the transition between classical and nonclassical light. As applied to single photon sources, theory suggests that specific driving parameters will result in n c ∼ 1 and g ð2Þ ð0Þ < 0.5 [19].…”

Section: Discussionmentioning

confidence: 99%

“…However, as noted in Ref. [19], periodic driving may allow for more control over the statistics of the emitted field.…”

Section: Cavity Gainmentioning

confidence: 99%

“…With this understanding, we apply the detailed theory of Ref. [19] to make a direct comparison with the experimental data. Quasistatic charge noise and amplitude variations are included in the model by smoothing the calculated cavity response with a Gaussian of width 50 μeV along the ϵ 0 axis and 10 μeV along the eV ac axis.…”

Section: Charge-cavity Coupling In the Presence Of Phononsmentioning

confidence: 99%

“…In this case, for every positive integer n, we need to account for all phonon emission and absorption processes that absorb n photons from the drive. Each of these processes interacts with phonons at a different frequency, which are characterized by the spectral density [19] …”

Section: Charge-cavity Coupling In the Presence Of Phononsmentioning

confidence: 99%

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Double Quantum Dot Floquet Gain Medium

et al. 2016

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Strongly driving a two-level quantum system with light leads to a ladder of Floquet states separated by the photon energy. Nanoscale quantum devices allow the interplay of confined electrons, phonons, and photons to be studied under strong driving conditions. Here, we show that a single electron in a periodically driven double quantum dot functions as a "Floquet gain medium," where population imbalances in the double quantum dot Floquet quasienergy levels lead to an intricate pattern of gain and loss features in the cavity response. We further measure a large intracavity photon number n c in the absence of a cavity drive field, due to equilibration in the Floquet picture. Our device operates in the absence of a dc current-one and the same electron is repeatedly driven to the excited state to generate population inversion. These results pave the way to future studies of nonclassical light and thermalization of driven quantum systems.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…However, as noted in Ref. [19], periodic driving may allow for more control over the statistics of the emitted field.…”

Section: Cavity Gainmentioning

confidence: 99%

Section: Charge-cavity Coupling In the Presence Of Phononsmentioning

confidence: 99%

Section: Charge-cavity Coupling In the Presence Of Phononsmentioning

confidence: 99%

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Double Quantum Dot Floquet Gain Medium

et al. 2016

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Memristive Sisyphus circuit for clock signal generation

Pershin

Shevchenko

Nori

2016

Sci Rep

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Frequency generators are widely used in electronics. Here, we report the design and experimental realization of a memristive frequency generator employing a unique combination of only digital logic gates, a single-supply voltage and a realistic thresholdtype memristive device. In our circuit, the oscillator frequency and duty cycle are defined by the switching characteristics of the memristive device and external resistors. We demonstrate the circuit operation both experimentally, using a memristor emulator, and theoretically, using a model memristive device with threshold. Importantly, nanoscale realizations of memristive devices offer small-size alternatives to conventional quartz-based oscillators. In addition, the suggested approach can be used for mimicking some cyclic (Sisyphus) processes in nature, such as “dripping ants” or drops from leaky faucets.

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Cavity QED with hybrid nanocircuits: from atomic-like physics to condensed matter phenomena

Cottet¹,

Dartiailh²,

Desjardins³

et al. 2017

J. Phys.: Condens. Matter

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Circuit QED techniques have been instrumental to manipulate and probe with exquisite sensitivity the quantum state of superconducting quantum bits coupled to microwave cavities. Recently, it has become possible to fabricate new devices where the superconducting quantum bits are replaced by hybrid mesoscopic circuits combining nanoconductors and metallic reservoirs. This mesoscopic QED provides a new experimental playground to study the light-matter interaction in electronic circuits. Here, we present the experimental state of the art of Mesoscopic QED and its theoretical description. A first class of experiments focuses on the artificial atom limit, where some quasiparticles are trapped in nanocircuit bound states. In this limit, the Circuit QED techniques can be used to manipulate and probe electronic degrees of freedom such as confined charges, spins, or Andreev pairs. A second class of experiments consists in using cavity photons to reveal the dynamics of electron tunneling between a nanoconductor and fermionic reservoirs. For instance, the Kondo effect, the charge relaxation caused by grounded metallic contacts, and the photo-emission caused by voltage-biased reservoirs have been studied. The tunnel coupling between nanoconductors and fermionic reservoirs also enable one to obtain split Cooper pairs, or Majorana bound states. Cavity photons represent a qualitatively new tool to study these exotic condensed matter states.

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Sisyphus Thermalization of Photons in a Cavity-Coupled Double Quantum Dot

Cited by 17 publications

References 54 publications

Double Quantum Dot Floquet Gain Medium

Double Quantum Dot Floquet Gain Medium

Memristive Sisyphus circuit for clock signal generation

Cavity QED with hybrid nanocircuits: from atomic-like physics to condensed matter phenomena

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