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In this theoretical study we qualitatively and quantitatively investigate the electric dipole spin resonance (EDSR) in a single Si/SiGe quantum dot in the presence of a magnetic field gradient, e.g., produced by a ferromagnet. We model a…

Mesoscale and Nanoscale Physics · Physics 2016-06-01 Marko J. Rančić , Guido Burkard

Electric dipole spin resonance is studied theoretically at a shallow donor formed in a nanowire with spin-orbit coupling in a magnetic field. Such system may represent a donor-based qubit. The single discrete energy level of the donor is…

Mesoscale and Nanoscale Physics · Physics 2019-02-06 D. V. Khomitsky , E. A. Lavrukhina , E. Ya. Sherman

Electron Spin Resonance (ESR) can microscopically probe both conduction electrons (ce) and local moment (LM) spin systems in different materials. A ce spin resonance (CESR) is observed in metallic systems based on light elements or with…

Strongly Correlated Electrons · Physics 2009-08-04 L. M. Holanda , J. M. Vargas , C. Rettori , S. Nakatsuji , K. Kuga , Z. Fisk , S. B. Oseroff , P. G. Pagliuso

We propose to use optical detection of magnetic resonance (ODMR) to measure the decoherence time T_{2} of a single electron spin in a semiconductor quantum dot. The electron is in one of the spin 1/2 states and a circularly polarized laser…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Oliver Gywat , Hans-Andreas Engel , Daniel Loss

Micromagnet-enabled electric-dipole spin resonance (EDSR) is an established method of high-fidelity single-spin control in silicon. However, the resulting architectural limitations have restrained silicon quantum processors to…

A theory of Electric Dipole Spin Resonance (EDSR), that is caused by various mechanisms of spin-orbit coupling, is developed as applied to free electrons in a parabolic quantum well. Choosing a parabolic shape of the well has allowed us to…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 Al. L. Efros , E. I. Rashba

Resonant manipulation of carbon nanotube valley-spin qubits by an electric field is investigated theoretically. We develop a new analysis of electrically driven spin resonance exploiting fixed physical characteristics of the nanotube: a…

Mesoscale and Nanoscale Physics · Physics 2015-03-24 Ying Li , Simon C. Benjamin , G. Andrew D. Briggs , Edward A. Laird

We compute the electron spin resonance (ESR) intensity for one-dimensional quantum wires in semiconductor heterostructures, taking into account electron-electron interactions and spin-orbit coupling. The ESR spectrum is shown to be very…

Strongly Correlated Electrons · Physics 2012-09-27 A. De Martino , R. Egger

The spin-orbit coupling (SOC) can mediate electric-dipole spin resonance (EDSR) in an a.c. electric field. In this letter, the EDSR is essentially understood as an spin precession under an effective a.c. magnetic field induced by the SOC in…

Mesoscale and Nanoscale Physics · Physics 2015-02-03 Li-Ping Yang , C. P. Sun

We present experiments to systematically study the time constants of spin-dependent recombination processes in semiconductors using pulsed electrically detected magnetic resonance (EDMR). The combination of time-programmed optical…

Electron spin resonance (ESR) pulsed dipolar spectroscopy (PDS) is used in protein 3D structure determination. However, the accuracy of the signal analysis depends heavily on the background correction process. In this work, we derive the…

Quantitative Methods · Quantitative Biology 2021-07-01 Aritro Sinha Roy

Electron Spin Resonance (ESR) describes a suite of techniques for characterising electronic systems, with applications in physics, materials science, chemistry, and biology. However, the requirement for large electron spin ensembles in…

Quantum Physics · Physics 2015-03-04 L. T. Hall , P. Kehayias , D. A. Simpson , A. Jarmola , A. Stacey , D. Budker , L. C. L. Hollenberg

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 consider a quantum dot attached to leads in the Coulomb blockade regime which has a spin 1/2 ground state. We show that by applying an ESR field to the dot-spin the stationary current in the sequential tunneling regime exhibits a…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 Hans-Andreas Engel , Daniel Loss

Silicon hole quantum dots have been the subject of considerable attention thanks to their strong spin-orbit coupling enabling electrical control. The physics of silicon holes is qualitatively different from germanium holes and requires a…

Mesoscale and Nanoscale Physics · Physics 2024-04-24 Zhanning Wang , Abhikbrata Sarkar , S. D. Liles , Andre Saraiva , A. S. Dzurak , A. R. Hamilton , Dimitrie Culcer

Electron spin qubit in a quantum dot has been studied extensively for scalable quantum information processing over the past two decades. Recently, high-fidelity and fast single-spin control and strong spin-photon coupling have been…

Mesoscale and Nanoscale Physics · Physics 2021-03-11 Peihao Huang , Xuedong Hu

Using an optical tweezers apparatus, we demonstrate three-dimensional control of nanodiamonds in solution with simultaneous readout of ground-state electron-spin resonance (ESR) transitions in an ensemble of diamond nitrogen-vacancy (NV)…

The $g$-tensor formalism is a powerful method for describing the electrical driving of semiconductor spin qubits. However, up to now, this technique has only been applied to the simplest qubit dynamics, resonant monochromatic driving by a…

Mesoscale and Nanoscale Physics · Physics 2025-04-09 Zoltán György , András Pályi , Gábor Széchenyi

Electron spin resonance (ESR) is a useful tool to investigate properties of materials in magnetic fields where high spin polarization of target electron spins is required in order to obtain high sensitivity. However, the smaller magnetic…

Quantum Physics · Physics 2022-02-09 Shingo Kukita , Hideaki Ookane , Yuichiro Matsuzaki , Yasushi Kondo

Coherent spin resonance methods such as nuclear magnetic resonance (NMR) and electron spin resonance (ESR) spectroscopy have led to spectrally highly sensitive, non-invasive quantum imaging techniques with groundbreaking applications in…