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We experimentally investigate the phase winding dynamics of a harmonically trapped two-component BEC subject to microwave induced Rabi oscillations between two pseudospin components. While the single particle dynamics can be explained by…

Quantum Gases · Physics 2013-12-31 C. Hamner , Yongping Zhang , J. J. Chang , Chuanwei Zhang , P. Engels

We consider joint effects of tunneling and spin-orbit coupling on driven by electric field spin dynamics in a double quantum dot with a multi-level resonance scenario. We demonstrate that tunneling plays the crucial role in the formation of…

Mesoscale and Nanoscale Physics · Physics 2012-03-26 D. V. Khomitsky , L. V. Gulyaev , E. Ya. Sherman

We consider an atomic Bose-Einstein condensate trapped in a symmetric one-dimensional double well potential in the four-mode approximation and show that the semiclassical dynamics of the two ground state modes can be strongly influenced by…

Quantum Physics · Physics 2014-02-20 J. Gillet , M. A. Garcia-March , Th. Busch , F. Sols

We investigate the possibility of using a Rabi drive to tune the interactions in an atomic Fermi gas. Specifically, we consider the scenario where two fermion species (spins) are Rabi coupled and interacting with a third uncoupled species.…

The sensitivity of the Rabi oscillations of a resonantly driven spin-1/2 system to a weak and slow modulation of the static longitudinal magnetic field, B_0, is studied theoretically. We establish the mapping of a weakly driven two-level…

Mesoscale and Nanoscale Physics · Physics 2013-04-24 R. Glenn , M. E. Limes , B. Pankovich , B. Saam , M. E. Raikh

We show that resonant driving between the spin up and spin down states of an electron spin-qubit in a quantum dot reduces the occupancy of the dot through leakage to an appropriately tuned lead. A nearby charge sensor measuring the…

Mesoscale and Nanoscale Physics · Physics 2025-03-25 Emily Townsend , Joshua Pomeroy , Garnett W. Bryant

We theoretically investigate the ground state and dynamics of a Rabi-coupled pseudospin-1/2 Bose-Einstein condensate, where only one spin component is subjected to an external potential. We show that in the quasiperiodic potential the Rabi…

Quantum Gases · Physics 2025-10-10 Swarup K. Sarkar , Sh. Mardonov , E. Ya. Sherman , Pankaj K. Mishra

We explore the paired superfluid phases of a Fermi gas in the presence of a continuous Rabi drive. We focus on the case where two components are strongly coupled by the drive, forming hybrid superpositions, and interacting with an uncoupled…

The system leading to phase segregation in two-component Bose-Einstein condensates can be generalized to hyperfine spin states with a Rabi term coupling. This leads to domain wall solutions having a monotone structure for a non-cooperative…

Analysis of PDEs · Mathematics 2019-07-24 Amandine Aftalion , Alberto Farina , Luc Nguyen

We show that a linear term coupling the atoms of an ultracold binary mixture provides a simple method to induce an effective and tunable population imbalance between them. This term is easily realized by a Rabi coupling between different…

Quantum Gases · Physics 2018-04-18 Luca Lepori , Anna Maraga , Alessio Celi , Luca Dell'Anna , Andrea Trombettoni

Using a time-dependent linear (Rabi) coupling between the components of a weakly interacting multicomponent Bose-Einstein condensate (BEC), we propose a protocol for transferring the wavefunction of one component to the other. This "Rabi…

Other Condensed Matter · Physics 2008-11-21 H. E. Nistazakis , Z. Rapti , D. J. Frantzeskakis , P. G. Kevrekidis , P. Sodano , A. Trombettoni

Superstripe phases in Bose-Einstein condensates (BECs), possessing both crystalline structure and superfluidity, opens a new avenue for exploring exotic quantum matters---supersolids. However, conclusive detection and further exploration of…

Quantum Gases · Physics 2019-12-11 Xi-Wang Luo , Chuanwei Zhang

We propose a mechanism to explain the nature of the damping of Rabi oscillations with increasing driving-pulse area in localized semiconductor systems, and have suggested a general approach which describes a coherently driven two-level…

Quantum Physics · Physics 2009-11-13 D. Mogilevtsev , A. P. Nisovtsev , S. Kilin , S. B. Cavalcanti , H. S. Brandi , L. E. Oliveira

Numerically we investigate the ground state of effective one-dimensional spin-orbit (SO) and Rabi coupled two pseudo-spinor Bose-Einstein condensates (BECs) under the effect of harmonic traps. For both signs of the interaction, density…

Quantum Gases · Physics 2018-01-17 Emerson Chiquillo

The time evolution equations for average values of population and relative phase of a strongly coupled two component BEC is derived analytically. The two components are two hyper-fine states coupled by an external laser that drives fast…

Condensed Matter · Physics 2009-10-31 Andal Narayanan , Hema Ramachandran

We use Rabi spectroscopy to explore the low-energy excitation spectrum of a finite-temperature Bose gas of rubidium atoms across the phase transition to a Bose-Einstein condensate (BEC). To record this spectrum, we coherently drive the…

Quantum Physics · Physics 2016-05-02 Baptiste Allard , Matteo Fadel , Roman Schmied , Philipp Treutlein

We study the miscibility properties and ground state phases of two-component spin-orbit (SO) coupled Bose-Einstein condensates (BECs) in a harmonic trap with strong axial confinement. By numerically solving the coupled Gross-Pitaevskii…

In the study of trapped two-component Bose gases, a widely used dynamical protocol is to start from the ground state of a one-component condensate and then switch half the atoms into another hyperfine state. The slightly different…

Quantum Gases · Physics 2013-06-21 Ivana Vidanovic , N. J. van Druten , Masudul Haque

We have studied the coherent evolution of ultracold atomic rubidium clouds subjected to a microwave field driving Rabi oscillations between the stretched states of the F=1 and F=2 hyperfine levels. A phase winding of the two-level system…

Quantum Gases · Physics 2013-12-05 Amita B. Deb , Bianca J. Sawyer , Niels Kjærgaard

The decay of Rabi oscillations provides direct information about coherence of electron spins. When observed in EPR experiments, it is often shortened by spatial inhomogeneity of the microwave field amplitude in a bulk sample. In order to…

Mesoscale and Nanoscale Physics · Physics 2018-09-03 A. P. Saiko , R. Fedaruk , S. A. Markevich
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