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Monogamy and ground-state entanglement in highly
Monogamy and ground-state entanglement in highly

... of the nonzero tij will be chosen randomly, in order to have averaged properties and avoid the dependence of our results on the details of the interaction. Interactions of the type 共1兲 may model highly connected physical systems, such as quantum spin glasses 关11兴. The entanglement between two parts ...
Full-Text PDF
Full-Text PDF

quantum mechanical methods for enzyme kinetics
quantum mechanical methods for enzyme kinetics

Statistical Physics of Spin Glasses and Information
Statistical Physics of Spin Glasses and Information

Applying elementary principles from quantum physics
Applying elementary principles from quantum physics

... What are we NOT after? From the outset: looking at the title of this talk... It seems we want to make social science or …nance to become quantum mechanical.... This is NOT what we are after In our book (E. Haven and A. Khrennikov (2013). Quantum Social Science. Cambridge University Press), we try t ...
agostino pr´astaro
agostino pr´astaro

Two Qubits Tavis-Cummings Model Beyond the Rotating Wave
Two Qubits Tavis-Cummings Model Beyond the Rotating Wave

... of initial states are studied in section IV. In section V, it is shown that the dynamics of the qubits is qualitatively different for the quantum mechanical and the classical descriptions of the oscillator and we conclude in section VI. II. ...
Spin Squeezing, Macrorealism and the Heisenberg uncertainty
Spin Squeezing, Macrorealism and the Heisenberg uncertainty

... etc.) and classical principles, such as the fact that outcomes of measurements just reveal preexisting properties of a system and can be in principle obtained with an arbitrarily small perturbation of the input state [21, 175]. Even more strikingly, as noted first by Einstein, Podolsky and Rosen in ...
The Mathematical Universe
The Mathematical Universe

... however, that it is we humans who introduce these concepts and the words for them: in principle, everything could have been derived from the fundamental theory at the top of the tree, although such an extreme reductionist approach appears useless in practice. Crudely speaking, the ratio of equations ...
Resolving the Structure of Black Holes: Philosophizing with a Hammer
Resolving the Structure of Black Holes: Philosophizing with a Hammer

Universit`a degli studi di Roma “La Sapienza”
Universit`a degli studi di Roma “La Sapienza”

... Independently on their application, squeezers need a squeezing detector, which allows to characterize the squeezing factor and angle of the produced squeezed state. A detector for squeezed light has to be sensitive to arbitrary quadrature of the electric field of the squeezed state. Thus, a phase de ...
Controlling electron quantum dot qubits by spin
Controlling electron quantum dot qubits by spin

... Especially the spin degree of freedom in quantum dots has attracted attention for two reasons. First, the electron spin provides a natural quantum two level system, suitable for encoding the information bit. Second, the spin is less coupled to the environment than are electron orbital degrees of fre ...
Chapter 3: Quantum Computing
Chapter 3: Quantum Computing

... demonstrations of quantum gates. [77] defined a quantum computing model known as a quantum gate array which allows execution of a (possibly cyclic) sequence of quantum gates, where each input is a qubit, and each gate computes a unitary transformation. • Quantum Circuits. Yao [78] restricted the co ...
Chapter 12
Chapter 12

... by multiplying each denomination by how many you have of that denomination and add them up. This is the Lebesgue integral. • The methods are different, but you obtain the same result by either method. Similarly, when both the Riemann integral and the Lebesgue integral are defined, they give the same ...
In Search of Quantum Reality
In Search of Quantum Reality

Dirac Operators on Noncommutative Spacetimes ?
Dirac Operators on Noncommutative Spacetimes ?

Quantum Information Processing: Algorithms, Technologies and
Quantum Information Processing: Algorithms, Technologies and

Theoretical studies of frustrated magnets with dipolar interactions
Theoretical studies of frustrated magnets with dipolar interactions

... phenomena. But often, to account for complex behavior of magnetic matter, such models have to be refined by including more terms in Hamiltonian. The compound LiHox Y1−x F4 , by increasing concentration of nonmagnetic yttrium can be tuned from a diluted ferromagnet to a spin glass. LiHoF4 is a good r ...
PDF - at www.arxiv.org.
PDF - at www.arxiv.org.

Daniel Adam Roberts - School of Natural Sciences
Daniel Adam Roberts - School of Natural Sciences

The complexity of the Separable Hamiltonian
The complexity of the Separable Hamiltonian

Electron-electron scattering in linear transport in two
Electron-electron scattering in linear transport in two

... the scale over which t («) varies, there can be significant differences in the calculated mobility using the two different methods. For example, we show below that in particular cases in GaAs quantum wells, m 0 / m ` '2. Thus, for accurate theoretical determination of the mobility at the semiclassic ...
Wigner function formalism in Quantum mechanics
Wigner function formalism in Quantum mechanics

A search for the Higgs boson in the decay to b-quarks
A search for the Higgs boson in the decay to b-quarks

Martin Raith - Publikationsserver der Universität Regensburg
Martin Raith - Publikationsserver der Universität Regensburg

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Scalar field theory

In theoretical physics, scalar field theory can refer to a classical or quantum theory of scalar fields. A scalar field is invariant under any Lorentz transformation.The only fundamental scalar quantum field that has been observed in nature is the Higgs field. However, scalar quantum fields feature in the effective field theory descriptions of many physical phenomena. An example is the pion, which is actually a pseudoscalar.Since they do not involve polarization complications, scalar fields are often the easiest to appreciate second quantization through. For this reason, scalar field theories are often used for purposes of introduction of novel concepts and techniques.The signature of the metric employed below is (+, −, −, −).
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