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We address the enhancement of electron drift in semiconductor superlattices of nanometre scale that occurs in combined electric and tilted magnetic fields if Bloch oscillations become resonant with cyclotron rotation in the transverse…

Mesoscale and Nanoscale Physics · Physics 2015-05-20 S. M. Soskin , I. A. Khovanov , P. V. E. McClintock

Precise quantum control relies on a deep understanding of the dynamics of quantum systems under external drives. This study investigates the impact of anharmonicity on qubit dynamics under conditions typical for two-qubit entangling gates…

In the framework of the non-secular perturbation theory based on the Bogoliubov averaging method, the coherent dynamics of multiphoton Raman transitions in a two-level spin system driven by an amplitude-modulated microwave field is studied.…

Mesoscale and Nanoscale Physics · Physics 2018-10-10 A. P. Saiko , S. A. Markevich , R. Fedaruk

We propose a superconducting circuit-atom hybrid, where the Rabi oscillation of single excess Cooper pair in the island is stabilized via the common atomic-clock technique. The noise in the superconducting circuit is mapped onto the voltage…

Atomic Physics · Physics 2018-02-13 Deshui Yu , Alessandro Landra , Leong Chuan Kwek , Luigi Amico , Rainer Dumke

We demonstrate that four-wave mixing processes in high-quality non-linear resonators can lead to Rabi-like oscillations in photon occupation numbers and second-order correlation functions, being a characteristic feature of the presence of…

Quantum Physics · Physics 2016-03-01 Y. Sherkunov , David M. Whittaker , Vladimir Falko

We show that the counter-rotating terms of the dispersive qubit-cavity Rabi model can produce relatively large and nonmonotonic Bloch-Siegert shifts in the cavity frequency as the system is driven through a quantum-to-classical transition.…

Mesoscale and Nanoscale Physics · Physics 2017-08-04 I. Pietikäinen , S. Danilin , K. S. Kumar , A. Vepsäläinen , D. S. Golubev , J. Tuorila , G. S. Paraoanu

The coupling of a two-level system with an electromagnetic field, whose fully quantized version is the quantum Rabi model, is among the central topics of quantum physics. When the coupling strength becomes large enough that the field mode…

Quantum Physics · Physics 2023-02-24 Johannes Koch , Geram R. Hunanyan , Till Ockenfels , Enrique Rico , Enrique Solano , Martin Weitz

Semiconductor quantum dots in photonic cavities are strongly coupled light-matter systems with prospective applications in optoelectronic devices and quantum information processing. Here we present a theoretical study of the coupled…

Mesoscale and Nanoscale Physics · Physics 2020-06-16 K. Jürgens , F. Lengers , T. Kuhn , D. E. Reiter

Artificial crystals such as moir\'e superlattices can have a real-space periodicity much larger than the underlying atomic scale. This facilitates the presence of Bloch oscillations in the presence of a static electric field. We demonstrate…

Mesoscale and Nanoscale Physics · Physics 2023-11-23 Christophe De Beule , E. J. Mele

The effect of two- and three-body interactions on the modulation instability (MI) domain formation of a spin-orbit (SO) and Rabi-coupled Bose-Einstein condensate is studied within a quasi-one-dimensional model. To this aim, we perform…

Quantum Gases · Physics 2023-06-30 R. Sasireka , S. Sabari , A. Uthayakumar , Lauro Tomio

The Rabi oscillations of a coupled spin-photon system are experimentally studied using time domain microwave transmission measurements. An external magnetic bias field is applied to control the amplitude and frequency of Rabi oscillations,…

Mesoscale and Nanoscale Physics · Physics 2019-05-22 Christophe Match , Michael Harder , Lihui Bai , Paul Hyde , Can-Ming Hu

The equations-of-motion for the density matrix are derived in a multiband model to describe the response of semiconductors (bulk or quantum well structures) under optical excitation with arbitrary polarization. The multiband model used,…

Condensed Matter · Physics 2016-08-16 U. Rössler

Increasing the number of electrons in electrostatically confined quantum dots can enable faster qubit gates. Although this has been experimentally demonstrated, a detailed quantitative understanding has been missing. Here we study one- and…

Mesoscale and Nanoscale Physics · Physics 2023-03-07 H. Ekmel Ercan , Christopher R. Anderson , S. N. Coppersmith , Mark Friesen , Mark F. Gyure

We demonstrate theoretically the noise-stimulated enhancement of quantum coherence in a superconducting flux qubit. First, an external classical noise can increase the off-diagonal components of the qubit density matrix. Second, in the…

Quantum Physics · Physics 2014-08-05 A. N. Omelyanchouk , S. Savel'ev , A. M. Zagoskin , E. Il'ichev , Franco Nori

We investigate a granular aluminium quantum circuit with an anharmonicity of the order of its decoherence rate in a 3-dimensional microwave cavity. We perform single qubit-like manipulations such as Rabi oscillations and Ramsey fringes. Our…

Mesoscale and Nanoscale Physics · Physics 2024-01-10 A. Théry , B. Neukelmance , B. Hue , W. Legrand , L. Jarjat , J. Craquelin , M. Villiers , A. Cottet , M. R. Delbecq , T. Kontos

We experimentally investigate the mixing/demixing dynamics of Bose-Einstein condensates in the presence of a linear coupling between two internal states. The observed amplitude reduction of the Rabi oscillations can be understood as a…

Quantum Gases · Physics 2015-05-30 E. Nicklas , H. Strobel , T. Zibold , C. Gross , B. A. Malomed , P. G. Kevrekidis , M. K. Oberthaler

Hole qubits in germanium quantum dots are promising candidates for coherent control and manipulation of the spin degree of freedom through electric dipole spin resonance. We theoretically study the time dynamics of a single heavy-hole qubit…

Mesoscale and Nanoscale Physics · Physics 2024-04-17 Bashab Dey , John Schliemann

We report on coherent resonant emission of the fundamental exciton state in a single semiconductor GaAs quantum dot. Resonant regime with picoseconde laser excitation is realized by embedding the quantum dots in a waveguiding structure. As…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 R. Melet , V. Voliotis , A. Enderlin , D. Roditchev , X. L. Wang , T. Guillet , R. Grousson

Rabi oscillations are coherent transitions in a quantum two-level system under the influence of a resonant perturbation, with a much lower frequency dependent on the perturbation amplitude. These serve as one of the signatures of quantum…

Superconductivity · Physics 2008-07-14 S. N. Shevchenko , A. N. Omelyanchouk , A. M. Zagoskin , S. Savel'ev , F. Nori

A charge carrier confined in a quasi-one-dimensional semiconductor helical nanostructure in the presence of an electric field normal to the axis of the helix is subjected to a periodic potential proportional to the strength of the field and…

Other Condensed Matter · Physics 2008-09-24 O. V. Kibis , M. E. Portnoi
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