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Within the dipole approximation we describe the interaction of a photodiode with the quantum electric field. The diode is modelled by an electron in a bound state which upon interaction, treated perturbatively in the paper, can get excited…

Quantum Physics · Physics 2009-11-13 P. Marecki

We propose a hybrid quantum architecture for engineering a photonicMott insulator-superfluid phase transition in a two-dimensional (2D) square lattice of a superconducting transmission line resonator (TLR) coupled to a single…

Quantum Physics · Physics 2015-04-22 Jia-Bin You , W. L. Yang , Zhen-Yu Xu , A. H. Chan , C. H. Oh

The quantum chromodynamics (QCD) phase diagram, which reveals the state of strongly interacting matter at different temperatures and densities, is key to answering open questions in physics, ranging from the behavior of particles in neutron…

We present studies of quantum interference in a noise power spectrum in the system of two quantum dots (2QD) in a T-geometry. Performing the spectral decomposition we are able to separate local currents and distinguish between the intra-…

Mesoscale and Nanoscale Physics · Physics 2025-10-27 Bogdan R. Bułka

Future scalable photonic quantum information processing relies on the ability of integrating multiple interacting quantum emitters into a single chip. Quantum dots provide ideal on-chip quantum light sources. However, achieving quantum…

We develop a rigorous theoretical framework for interaction-induced phenomena in the waveguide quantum electrodynamics (QED) driven by mechanical oscillations of the qubits. Specifically, we predict that the simplest set-up of two qubits,…

Mesoscale and Nanoscale Physics · Physics 2020-11-04 Ivan Iorsh , Alexander Poshakinskiy , Alexander Poddubny

The coherent coupling of flying photonic qubits to stationary matter-based qubits is an essential building block for quantum communication networks. We show how such a quantum interface can be realized between a traveling-wave optical field…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Heike Schwager , J. Ignacio Cirac , Géza Giedke

Electrostatic forces are among the most common interactions in nature and omnipresent at the nanoscale. Scanning probe methods represent a formidable approach to study these interactions locally. The lateral resolution of such images is,…

Mesoscale and Nanoscale Physics · Physics 2023-12-22 Christian Wagner , F. Stefan Tautz

We show that fully self-assembled optically-active quantum dots (QDs) embedded in MBE-grown GaAs/AlGaAs core-shell nanowires (NWs) are coupled to the NW mechanical motion. Oscillations of the NW modulate the QD emission energy in a broad…

Mesoscale and Nanoscale Physics · Physics 2014-08-22 M. Montinaro , G. Wüst , M. Munsch , Y. Fontana , E. Russo-Averchi , M. Heiss , A. Fontcuberta i Morral , R. J. Warburton , M. Poggio

Optical interfaces for quantum emitters are a prerequisite for implementing quantum networks. Here, we couple single molecules to the guided modes of an optical nanofiber. The molecules are embedded within a crystal that provides…

Nonlinear interactions between single quantum particles are at the heart of any quantum information system, including analog quantum simulation and fault-tolerant quantum computing. This remains a particularly difficult problem for photonic…

We investigated the possibility of using a layer of quantum dots (QDs) deposited on the microparticle surface for the measurement of the charge the microparticle acquires when immersed into a plasma. To that end, we performed the…

Plasma Physics · Physics 2021-12-08 Mikhail Pustylnik , Zahra Marvi , Job Beckers

Perovskite quantum dots (PQDs) provide a robust solution-based approach to efficient solar cells, bright light-emitting devices, and quantum sources of light. Quantifying heterogeneity and understanding coupling between dots is critical for…

We show that quantum frequency conversion (QFC) can overcome the spectral distinguishability common to inhomogeneously broadened solid-state quantum emitters. QFC is implemented by combining single photons from an InAs quantum dot (QD) at…

We propose an architecture for achieving high-fidelity deterministic quantum logic gates on dual-rail encoded photonic qubits by letting photons interact with a two-level emitter (TLE) inside an optical cavity. The photon wave packets that…

Quantum Physics · Physics 2022-09-12 Stefan Krastanov , Kurt Jacobs , Gerald Gilbert , Dirk R. Englund , Mikkel Heuck

We consider a quantum dot embedded in a three-dimensional nanowire with tunable aspect ratio a. A configuration interaction theory is developed to calculate the energy spectra of the finite 1D quantum dot systems charged with two electrons…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 Y. T. Chen , C. C. Chao , S. Y. Huang , C. S. Tang , S. J. Cheng

The possibility to generate and manipulate non-classical light using the tools of mature semiconductor technology carries great promise for the implementation of quantum communication science. This is indeed one of the main driving forces…

Quantum Physics · Physics 2015-03-03 Rinaldo Trotta , Armando Rastelli

We present the experimental realization of a Quantum Dot (QD) operating as a high-frequency noise detector. Current fluctuations produced in a nearby Quantum Point Contact (QPC) ionize the QD and induce transport through excited states. The…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 E. Onac , F. Balestro , L. H. Willems van Beveren , U. Hartmann , Y. V. Nazarov , L. P. Kouwenhoven

Quantum dot sensitized solar cells are among the new generations of solar cells that have attracted much attention. Theoretical and simulation studies have predicted high efficiency for these cells so that in the future, these cells could…

Applied Physics · Physics 2020-07-17 Hossein Vahid Dastjerdi , Hamidreza Fallah , Morteza Hajimahmoodzadeh

We theoretically study the Fano-Kondo effect in a triple quantum dot (QD) system where two QDs constitute a two-level system and the other QD works in a detector with electrodes. We found that the Fano dip is clearly modulated by strongly…

Strongly Correlated Electrons · Physics 2014-01-08 Tetsufumi Tanamoto , Yoshifumi Nishi
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