10 EPR Spectroscopy
... Formally forbidden transitions can be excited by a single pulse or even by continuous irradiation. This allows for detection of nuclear frequencies in electron spin echo envelope modulation (ESEEM) experiments (Section 10.4.4). The pulse sequences consist of only mw pulses that are far off-resonant ...
... Formally forbidden transitions can be excited by a single pulse or even by continuous irradiation. This allows for detection of nuclear frequencies in electron spin echo envelope modulation (ESEEM) experiments (Section 10.4.4). The pulse sequences consist of only mw pulses that are far off-resonant ...
Spin Hamiltonians and Exchange interactions
... Sz labels ±1/2 as “↑” and “↓”. Any Hamiltonian Hspin ({Si }) in terms of spins (in a finite system) can always be written as a polynomial in the 3N spin components. The same spin Hamiltonian could come from diverse origins. Once we have it, it is irrelevant what the internal degrees of freedom were ...
... Sz labels ±1/2 as “↑” and “↓”. Any Hamiltonian Hspin ({Si }) in terms of spins (in a finite system) can always be written as a polynomial in the 3N spin components. The same spin Hamiltonian could come from diverse origins. Once we have it, it is irrelevant what the internal degrees of freedom were ...
Neutron scattering from quantum condensed matter
... cross-section by means of simple analytical expressions. Because neutrons produced by high-flux sources have wavelengths comparable to interatomic distances and energies comparable to typical collective excitations in condensed matter, both static and dynamic correlations are probed precisely in the ...
... cross-section by means of simple analytical expressions. Because neutrons produced by high-flux sources have wavelengths comparable to interatomic distances and energies comparable to typical collective excitations in condensed matter, both static and dynamic correlations are probed precisely in the ...
A Study of Hyperfine Splitting in Ground State of H
... The electron and the proton in atomic hydrogen constitute tiny magnetic dipoles, whose interaction energy varies according to the relative orientation of their dipole moment. If the spins are parallel (or, more precisely,if they are in the triplet state), the energy is somewhat higher than it is whe ...
... The electron and the proton in atomic hydrogen constitute tiny magnetic dipoles, whose interaction energy varies according to the relative orientation of their dipole moment. If the spins are parallel (or, more precisely,if they are in the triplet state), the energy is somewhat higher than it is whe ...
CT-Invariant Quantum Spin Hall Effect in Ferromagnetic Graphene
... which case the Fermi energy EF (EF ¼ 0) is located between the spin-up Dirac point 0 M and the spin-down Dirac point 0 þ M, Ie is zero and a net quantum spin current emerges in the transversal terminals. In addition, if in the open circuit case, the spin accumulation emerges at the sample bounda ...
... which case the Fermi energy EF (EF ¼ 0) is located between the spin-up Dirac point 0 M and the spin-down Dirac point 0 þ M, Ie is zero and a net quantum spin current emerges in the transversal terminals. In addition, if in the open circuit case, the spin accumulation emerges at the sample bounda ...
Kinetics of decay of metastable gas phase of polarized atomic
... Besides depolarization, exchange interaction makes possible in pair collisions of polarized atoms the resonant process of recombination with transition of the quasimolecule into bound singlet states whose energy is located a t a distance smaller than 2p,H from the end point of the continuous spectru ...
... Besides depolarization, exchange interaction makes possible in pair collisions of polarized atoms the resonant process of recombination with transition of the quasimolecule into bound singlet states whose energy is located a t a distance smaller than 2p,H from the end point of the continuous spectru ...
III. Spin and orbital angular momentum
... The deflection of the atom from the initial trajectory is therefore proportional to Mz . By measuring where the atom lands on the screen Mz and, by proportionality, Lz , can be determined. When a beam of hydrogen atoms is used in this experiment two well defined subbeams of hydrogen are detected on ...
... The deflection of the atom from the initial trajectory is therefore proportional to Mz . By measuring where the atom lands on the screen Mz and, by proportionality, Lz , can be determined. When a beam of hydrogen atoms is used in this experiment two well defined subbeams of hydrogen are detected on ...
Triple to quintuple quantum dots for making multiple qubits
... including spin-1/2, singlet-triplet and exchange-only qubits. We have used a micro-magnet technique to make two spin-1/2 qubits and an entangling gate with a double quantum dot. The necessary step for further scaling up the qubit system is to increase the number of quantum dots having a suitable cha ...
... including spin-1/2, singlet-triplet and exchange-only qubits. We have used a micro-magnet technique to make two spin-1/2 qubits and an entangling gate with a double quantum dot. The necessary step for further scaling up the qubit system is to increase the number of quantum dots having a suitable cha ...
Electrically controllable g tensors in quantum dot
... individual spin qubits by their own electric gate5 which allows fast changes of the spin splitting, quantum gate operations, and a tuning of the spin storage time.3 In any case, progress in this field requires a detailed understanding of the mechanisms that allow one to modify the spin-related elect ...
... individual spin qubits by their own electric gate5 which allows fast changes of the spin splitting, quantum gate operations, and a tuning of the spin storage time.3 In any case, progress in this field requires a detailed understanding of the mechanisms that allow one to modify the spin-related elect ...
Spin-current-induced charge accumulation and electric
... differences between the average distributions along the transverse of the strip resulted from spin currents which are polarized in different directions. In particular, Figs. 1共c兲 and 1共d兲 show that the charges of carriers tend to accumulate, depending on the sign of ␣, either at both of the two late ...
... differences between the average distributions along the transverse of the strip resulted from spin currents which are polarized in different directions. In particular, Figs. 1共c兲 and 1共d兲 show that the charges of carriers tend to accumulate, depending on the sign of ␣, either at both of the two late ...
SU(3) symmetry and Baryon wave functions
... • one corresponds to multiplying by a phase factor (no flavour transformation) • Remaining three form an SU(2) group (special unitary) with det U=1 Tr(G)=0 • A linearly independent choice for G are the Pauli spin matrices ...
... • one corresponds to multiplying by a phase factor (no flavour transformation) • Remaining three form an SU(2) group (special unitary) with det U=1 Tr(G)=0 • A linearly independent choice for G are the Pauli spin matrices ...
Nitrogen-vacancy center
The nitrogen-vacancy center (N-V center) is one of numerous point defects in diamond. Its most explored and useful property is photoluminescence, which can be easily detected from an individual N-V center, especially those in the negative charge state (N-V−). Electron spins at N-V centers, localized at atomic scales, can be manipulated at room temperature by applying a magnetic field, electric field, microwave radiation or light, or a combination, resulting in sharp resonances in the intensity and wavelength of the photoluminescence. These resonances can be explained in terms of electron spin related phenomena such as quantum entanglement, spin-orbit interaction and Rabi oscillations, and analysed using advanced quantum optics theory. An individual N-V center can be viewed as a basic unit of a quantum computer, and it has potential applications in novel, more efficient fields of electronics and computational science including quantum cryptography and spintronics.