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Paper
Paper

Spinons and triplons in spatially anisotropic frustrated antiferromagnets ARTICLES MASANORI KOHNO
Spinons and triplons in spatially anisotropic frustrated antiferromagnets ARTICLES MASANORI KOHNO

a presentation of Michel from 2009
a presentation of Michel from 2009

... However, according to Theorem 1 this is impossible. You will never have zeros everywhere. In simple words, you can never completely isolate all the other qubits from the action of the applied field ...
Can Molecules Have Permanent Electric Dipole Moments?
Can Molecules Have Permanent Electric Dipole Moments?

Hole spin dynamics and valenceband spin excitations in
Hole spin dynamics and valenceband spin excitations in

Rotational Spectroscopy of Diatomic Molecules - Assets
Rotational Spectroscopy of Diatomic Molecules - Assets

... Molecular spectroscopy involves the study of the absorption or emission of electromagnetic radiation by matter; the radiation may be detected directly, or indirectly through its effects on other molecular properties. The primary purpose of spectroscopic studies is to understand the nature of the nuc ...
Chapter 2. Electronic, Vibrational and Spin
Chapter 2. Electronic, Vibrational and Spin

... on the wavefunction Ψ (e.g., operation of the Hamiltonian operator, H, on Ψ produces the allowed energies). The operator is related to some measurable property of a system (energy, dipole moment, bond angle, angular momentum, transition probability, etc.) and generally has a form similar to the math ...
Pauli`s Principle in Probe Microscopy
Pauli`s Principle in Probe Microscopy

Magnetic order of intermetallic FeGa $ _ {3
Magnetic order of intermetallic FeGa $ _ {3

... Temperature dependent magnetization, muon spin rotation and 57 Fe Mössbauer spectroscopy experiments performed on crystals of intermetallic FeGa3−y Gey (y = 0.11, 0.14, 0.17, 0.22, 0.27, 0.29, 0.32) are reported. Whereas at y = 0.11 even a sensitive magnetic microprobe such as µSR does not detect m ...
Barish Communications 07-06
Barish Communications 07-06

An edge index for the Quantum Spin-Hall effect
An edge index for the Quantum Spin-Hall effect

... In conclusion, we found that the current of the observable X = 21 [yΣi + Σi y] is quantized and that the quantization is given by the index of a Fredholm operator. This index was shown to take same value as the Spin-Chern number introduced in Ref. [5]. Our result provides a non-trivial topological i ...
Charge and spin quantum fluids generated by many
Charge and spin quantum fluids generated by many

... is the cν rapidity-momentum functional and the function Θν,ν (x) is defined in Eq. (B.5) of Appendix B. Eqs. (13)–(15) apply to all regular energy eigenstates. The ground state and the low-energy eigenstates involve occupancy configurations of the c and s1 pseudoparticle branches only [19]. The ps ...
Efficient Magnetization Reversal with Noisy Currents
Efficient Magnetization Reversal with Noisy Currents

Quantum Criticality and Black Holes
Quantum Criticality and Black Holes

kinetics of a particle: impulse and momentum
kinetics of a particle: impulse and momentum

Lecture Notes for Ph219/CS219: Quantum Information and Computation Chapter 2 John Preskill
Lecture Notes for Ph219/CS219: Quantum Information and Computation Chapter 2 John Preskill

sp0103_32-36 Gaughan
sp0103_32-36 Gaughan

... big place and has been around for a very long time. There is time and space enough for extremely tiny violations of the symmetry laws that we believe to govern its behavior to have produced very large effects, like the observed matter–antimatter imbalance.” To detect differences between protons and ...
On the computational complexity of Ising spin glass models
On the computational complexity of Ising spin glass models

Optical control of the spin of a magnetic atom in a semiconductor
Optical control of the spin of a magnetic atom in a semiconductor

--Fundamental Problems and Application to Material Science-
--Fundamental Problems and Application to Material Science-

Chapter 2. Mind and the Quantum
Chapter 2. Mind and the Quantum

Angular Momentum in Quantum Mechanics
Angular Momentum in Quantum Mechanics

... In many problems in physics, the potential is central, namely, V = V (r); this means that the potential is spherically symmetric, and is not a function of θ or φ. In this type of systems - the best representative may be the hydrogen atom to be discussed shortly, it is best to work in spherical coord ...
2009
2009

... The origin of the anomalous Hall effect (AHE) in ferromagnets has been a subject of long-standing debate. Dilute magnetic semiconductors (DMS) provide an excellent test ground for clarifying the issues. In our study, we engineered a series of GaMnAs thin films with different doping levels and with p ...
Limitations on the superposition principle: superselection
Limitations on the superposition principle: superselection

Optical spectroscopy of InGaAs quantum dots  Arvid Larsson
Optical spectroscopy of InGaAs quantum dots Arvid Larsson

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Spin (physics)

In quantum mechanics and particle physics, spin is an intrinsic form of angular momentum carried by elementary particles, composite particles (hadrons), and atomic nuclei.Spin is one of two types of angular momentum in quantum mechanics, the other being orbital angular momentum. The orbital angular momentum operator is the quantum-mechanical counterpart to the classical notion of angular momentum: it arises when a particle executes a rotating or twisting trajectory (such as when an electron orbits a nucleus). The existence of spin angular momentum is inferred from experiments, such as the Stern–Gerlach experiment, in which particles are observed to possess angular momentum that cannot be accounted for by orbital angular momentum alone.In some ways, spin is like a vector quantity; it has a definite magnitude, and it has a ""direction"" (but quantization makes this ""direction"" different from the direction of an ordinary vector). All elementary particles of a given kind have the same magnitude of spin angular momentum, which is indicated by assigning the particle a spin quantum number.The SI unit of spin is the joule-second, just as with classical angular momentum. In practice, however, it is written as a multiple of the reduced Planck constant ħ, usually in natural units, where the ħ is omitted, resulting in a unitless number. Spin quantum numbers are unitless numbers by definition.When combined with the spin-statistics theorem, the spin of electrons results in the Pauli exclusion principle, which in turn underlies the periodic table of chemical elements.Wolfgang Pauli was the first to propose the concept of spin, but he did not name it. In 1925, Ralph Kronig, George Uhlenbeck and Samuel Goudsmit at Leiden University suggested a physical interpretation of particles spinning around their own axis. The mathematical theory was worked out in depth by Pauli in 1927. When Paul Dirac derived his relativistic quantum mechanics in 1928, electron spin was an essential part of it.
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