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Related papers: Isolating Pure Quadratic Zeeman Splitting

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A mechanism is advanced suggesting the resolution of the dichotomy of long-lived spin polarization storage versus fast spin reversal at the required time. A system of atoms or molecules is considered interacting through magnetic dipolar…

Mesoscale and Nanoscale Physics · Physics 2018-11-14 V. I. Yukalov , E. P. Yukalova

A lattice system of spinor atoms or molecules experiencing quadratic Zeeman effect is considered. This can be an optical lattice with sufficiently deep wells at lattice sites, so that the system is in an isolating state, where atoms are…

Quantum Gases · Physics 2018-11-21 V. I. Yukalov , E. P. Yukalova

Despite its potential for device application, the non-magnetic Zeeman effect has only been predicted and observed in two-dimensional compounds. We demonstrate that non-centrosymmetric three-dimensional compounds can also exhibit a…

Materials Science · Physics 2022-02-11 Carlos Mera Acosta , Adalberto Fazzio , Gustavo M. Dalpian

A lattice of particles with dipolar magnetic moments is considered under the presence of quadratic Zeeman effect. Two types of this effect are taken into account, the effect due to an external nonresonant magnetic field and the effect…

Other Condensed Matter · Physics 2018-08-01 V. I. Yukalov , E. P. Yukalova

Non-linear Zeeman splitting of neutral excitons is observed in composition engineered In(x)Ga(1-x)As self-assembled quantum dots and its microscopic origin is explained. Eight-band k.p simulations, performed using realistic dot parameters…

Mesoscale and Nanoscale Physics · Physics 2012-06-01 V. Jovanov , T. Eissfeller , S. Kapfinger , E. C. Clark , F. Klotz , M. Bichler , J. G. Keizer , P. M. Koenraad , M. S. Brandt , G. Abstreiter , J. J. Finley

We present a theoretical study of low temperature nonequilibrium transport through an interacting quantum dot in the presence of Zeeman magnetic field and current injection into one of its leads. By using a self-consistent renormalized…

Mesoscale and Nanoscale Physics · Physics 2017-01-27 Shaon Sahoo , Adeline Crépieux , Mireille Lavagna

Electron spin filter induced by Zeeman splitting in a few-electron quantum dot coupled to two normal electrodes is studied considering Coulomb blockade effect. Based on the Anderson model and Liouville-von Neumann equation, equation of…

Mesoscale and Nanoscale Physics · Physics 2020-03-24 Wenxi Lai , Mengmeng Zhang

Electrostatic control of the magnetization of a normal mesoscopic conductor is analyzed in a hybrid superconductor-normal-superconductor system. This effect stems from the interplay between the non-equilibrium condition in the normal region…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 F. Giazotto , F. Taddei , R. Fazio , F. Beltram

This paper describes a very general approach to the calculation of the Zeeman splitting effect produced by an external magnetic field on the rotational levels of diatomic molecules. The method is valid for arbitrary values of the total…

Astrophysics · Physics 2009-11-13 A. Asensio Ramos , J. Trujillo Bueno

Anomalously large linear and quadratic Zeeman shifts are measured for weakly bound ultracold $^{88}$Sr$_2$ molecules near the intercombination-line asymptote. Nonadiabatic Coriolis coupling and the nature of long-range molecular potentials…

The effect of a Zeeman magnetic field coupled to the spin of the electrons on the conducting properties of the disordered Hubbard model is studied. Using the Determinant Quantum Monte Carlo method, the temperature- and magnetic-field-…

Strongly Correlated Electrons · Physics 2009-11-10 P. J. H. Denteneer , R. T. Scalettar

We propose the realization of linear crystals of cold ions which contain different atomic species for investigating quantum phase transitions and frustration effects in spin system beyond the commonly discussed case of $s=1/2$. Mutual…

Quantum Physics · Physics 2015-05-28 Peter A. Ivanov , Ferdinand Schmidt-Kaler

Recent experiments are reviewed that explore the spin states of a ring-shaped many-electron quantum dot. Coulomb-blockade spectroscopy is used to access the spin degree of freedom. The Zeeman effect observed for states with successive…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 T. Ihn , A. Fuhrer , K. Ensslin , M. Bichler , W. Wegscheider

We consider a single electron in a 1D quantum dot with a static slanting Zeeman field. By combining the spin and orbital degrees of freedom of the electron, an effective quantum two-level (qubit) system is defined. This pseudo-spin can be…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Yasuhiro Tokura , Wilfred G. van der Wiel , Toshiaki Obata , Seigo Tarucha

We show that an effective quadratic Zeeman effect can be generated in $^{52}$Cr by proper laser configurations, and in particular by the dipole trap itself. The induced quadratic Zeeman effect leads to a rich ground-state phase diagram, can…

Other Condensed Matter · Physics 2009-11-11 L. Santos , M. Fattori , J. Stuhler , T. Pfau

We investigate how the strain-induced nuclear quadrupole interaction influences the degree of nuclear spin polarization in self-assembled quantum dots. Our calculation shows that the achievable nuclear spin polarization in In_{x}Ga_{1-x}As…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Chia-Wei Huang , Xuedong Hu

The Zeeman interaction is a quantum mechanical effect that underpins spin-based quantum devices such as spin qubits. Typically, identification of the Zeeman interaction needs a large out-of-plane magnetic field coupled with ultralow…

Mesoscale and Nanoscale Physics · Physics 2020-03-11 E. Marcellina , Pankaj Bhalla , A. R. Hamilton , Dimitrie Culcer

The coherence of the electron spin in a semiconductor quantum dot is strongly enhanced by mode locking through nuclear focusing, where the synchronization of the electron spin to periodic pulsing is slowly transferred to the nuclear spins…

Mesoscale and Nanoscale Physics · Physics 2017-09-11 Wouter Beugeling , Götz S. Uhrig , Frithjof B. Anders

We study a thermally induced spin flip of an electron spin located in a semiconductor quantum dot. This interesting effect arises from an intriguing interplay between the Zeeman coupling to an external magnetic field and the hyperfine…

Mesoscale and Nanoscale Physics · Physics 2015-08-05 Moritz Fuchs , Felix Krauß , Daniel Hetterich , Björn Trauzettel

We implement a microscopic spin filter for cold fermionic atoms in a quantum point contact (QPC) and create fully spin-polarized currents while retaining conductance quantization. Key to our scheme is a near-resonant optical tweezer…

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