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Quantum walk as a generalized measuring device
Quantum walk as a generalized measuring device

Chapter 12: Symmetries in Physics: Isospin and the Eightfold Way
Chapter 12: Symmetries in Physics: Isospin and the Eightfold Way

... beta decay). The mass difference between the neutron and the proton could then be attributed to the charge content of the latter. If the mass difference (or the energy difference) were to be to be purely electrostatic in nature, the proton had to be heavier. However, the proton is the lighter of the tw ...
University of Groningen Metastable D-state spectroscopy and
University of Groningen Metastable D-state spectroscopy and

Chapter 20 Parity, Charge Conjugation and CP
Chapter 20 Parity, Charge Conjugation and CP

Magnetoelectric coupling in the multiferroic compound LiCu O * Chen Fang,
Magnetoelectric coupling in the multiferroic compound LiCu O * Chen Fang,

The quantum system - Università degli Studi dell`Insubria
The quantum system - Università degli Studi dell`Insubria

Kazakov - From Sigma Models to Four-dimensional QFT
Kazakov - From Sigma Models to Four-dimensional QFT

... with Nikolay Gromov Sebastien Leurent ...
Valley splitting in the transition-metal dichalcogenides monolayer
Valley splitting in the transition-metal dichalcogenides monolayer

Halperin Presentation - National Academy of Sciences
Halperin Presentation - National Academy of Sciences

... B-phase is time reversal symmetric with a broken rotational symmetry that preserves relative spin - orbit symmetry (like the predicted color flavor locking symmetry predicted by Wilczek in the quark – gluon plasma). First direct observations of this characteristic symmetry by Lee et al. Nature 400, ...
University of Groningen Electrical spin injection in metallic
University of Groningen Electrical spin injection in metallic

Page 12 - at www.arxiv.org.
Page 12 - at www.arxiv.org.

Angular Momentum Coupling and Rabi Frequencies for Simple
Angular Momentum Coupling and Rabi Frequencies for Simple

... 2π×107 Hz.48 We may neglect spontaneous emission (recovering the Rabi-flopping behaviour described by Eqs. (1)) if Ωe←g  A. However, this requires very high laser intensities. Although spontaneous emission is driven by only a “half photon” in each vacuum mode, there are an immense number of such mo ...
Document
Document

triplet states theory and electronic state figure
triplet states theory and electronic state figure

Quantum Process on 1 quabit system Au Tung Kin 2009264740 1
Quantum Process on 1 quabit system Au Tung Kin 2009264740 1

Novel Results for Condensed Matter Systems with Time Reversal Symmetry
Novel Results for Condensed Matter Systems with Time Reversal Symmetry

... regime of Coulomb Blockade [10]. The fact that superconductivity is associated with breaking of particle number conservation hints at the idea that in mesoscopic systems superconductivity can quite different from that of bulk systems. In this work we focus on extreme case of the so-called zerodimens ...
relativistic stern-gerlach deflection
relativistic stern-gerlach deflection

... a “longitudinal” axis. Lorentz boosts occur only along this axis, and fields that are transverse in any frame are transverse in every frame. The vector operator ∇ can therefore, if one wishes, be everywhere replaced by ∇⊥ . (This would not be valid at entrances and exits of magnets or electric eleme ...
Spherical Tensors
Spherical Tensors

Theory of Magnetism
Theory of Magnetism

Opening up three quantum boxes causes classically undetectable
Opening up three quantum boxes causes classically undetectable

Effective Quantum Spin Systems with Trapped Ions
Effective Quantum Spin Systems with Trapped Ions

... the distance between ions is not constant. We can, however, define an averaged lattice constant d0 , to understand the qualitative properties of the vibrational modes. We have two cases, depending on the orientation of the pushing forces: (a) Axial force. The equilibrium position of the ions are suc ...
Quantum Phase Transitions - Subir Sachdev
Quantum Phase Transitions - Subir Sachdev

... Normally, we do this by raising temperature. The resulting phase transition between phases characterized by (1) and (2) is well understood, and described by the well-developed theory of classical phase transitions. This shall not be our interest here. Rather, we are interested in moving from magneti ...
Quantum Computation with Molecular Nanomagnets
Quantum Computation with Molecular Nanomagnets

Coherent and incoherent evolution of qubits in
Coherent and incoherent evolution of qubits in

Generating entangled spin states for quantum metrology by single-photon detection
Generating entangled spin states for quantum metrology by single-photon detection

... q  1 is the photon detection efficiency. The probability of the incident photon being scattered into free space by the atomic ensemble is psc = 2Sη(/2)2 = 2Sφ 2 /η [35]. Therefore the success probability is simply related to the free-space scattering probability via p = qηpsc /4. A cavity increas ...
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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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