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Quantum computing  Markus Kiili Opinnäytetyö
Quantum computing Markus Kiili Opinnäytetyö

Shannon Information Entropy in Position Space for Two
Shannon Information Entropy in Position Space for Two

... turns into a shape resonance [38 - 41]. As a shape resonance lies in the scattering continuum, the usual Rayleigh-Ritz bound principle to its energy is no longer valid, so care must be taken to choose the wave functions for calculations of Shannon entropy. Here, we take the character of shape resona ...
Optimal Algorithms and Inapproximability Results for Every CSP?
Optimal Algorithms and Inapproximability Results for Every CSP?

Frontiers in Quantum Methods and Applications in Chemistry and
Frontiers in Quantum Methods and Applications in Chemistry and

... recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, register ...
Quantum Physics II, Lecture Notes 6
Quantum Physics II, Lecture Notes 6

... time t0 –it does not depend on the chosen state at time t0 . A physical system has a single operator U that generates the time evolution of all possible states. The above equation is valid for all times t, so t can be greater than, equal to, or less than t0 . As defined, the operator U is unique: if ...
Entanglement in the anisotropic Heisenberg XYZ model with
Entanglement in the anisotropic Heisenberg XYZ model with

... Heisenberg model is an ideal candidate for the generation and the manipulation of entangled states. This model has been used to simulate many physical systems, such as nuclear spins [2], quantum dots [3], superconductor [4] and optical lattices [5], and the Heisenberg interaction alone can be used f ...
NorwayWN.5
NorwayWN.5

... Scattering continuum essential see also Nucl. Phys. A 794, 29 (2007) ...
MOMENTUM! - Bibb County Public School District
MOMENTUM! - Bibb County Public School District

... because, as the proof on the last slide shows, there would be another force (friction) in addition to the contact forces. Friction wouldn’t cancel out, and it would be a net force on the system. The only way to conserve momentum with an external force like friction is to make it internal by includin ...
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Exploring the fundamental properties of matter with

Broad Feshbach Resonance in the 6Li-40K Mixture
Broad Feshbach Resonance in the 6Li-40K Mixture

... E1 from Ref. [17]. The mixture is prepared in one of the two-body hyperfine eigenstates of H int at magnetic field B, referred to as the P channel or open channel, denoted via the B ¼ 0 hyperfine quantum numbers as jf; mf i  jf; mf i . The corresponding energy of two free atoms at rest defines a ...
6th Grade - Northern Highlands
6th Grade - Northern Highlands

... When two billiard balls collide, it looks like they bounce without a loss of kinetic energy. But the sound of the collision tells you a small amount of kinetic energy is being changed into sound energy. Perfectly elastic collisions do occur on a smaller scale. The collision between two individual at ...
Bose-Einstein condensates with balanced gain and loss
Bose-Einstein condensates with balanced gain and loss

... The coherent dynamics of bosonic atoms in the lowestenergy Bloch band of an optical lattice are described by the Bose-Hubbard Hamiltonian [32] in Eq. (1b). The first term of Eq. (1b) describes tunneling between the two lattice sites and the second term describes an on-site interaction between the pa ...
Elements of Quantum Gases: Thermodynamic and Collisional
Elements of Quantum Gases: Thermodynamic and Collisional

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Dyson Equation and Self-Consistent Green`s

$doc.title

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... of momentum, something alternative quantum formulations (below) cannot. In any event, we show below that in DQM either PEP or energy conservation must be incorrect. We choose to believe it is the former. DQM also can explain phenomena such as XPS data from multi-electron atoms in which it is clear ...
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... mass of the car is 1,300 kg. A motorcycle passes the car at a speed of 30 m/sec (67 mph). The motorcycle (with rider) has a mass of 350 kg. Calculate and compare the momentum of the car and motorcycle. ...
Quantum Symmetric States - UCLA Department of Mathematics
Quantum Symmetric States - UCLA Department of Mathematics

... Thus, the expectation E can be seen as an integral (w.r.t. a probability measure on the tail algebra) — that is, as a sort of convex combination — of expectations with respect to which the random variables x1 , x2 , . . . are independent and identically distributed (i.i.d.). Dykema (TAMU) ...
Probability in Everettian quantum mechanics - Philsci
Probability in Everettian quantum mechanics - Philsci

... results will occur, there may still be a subjective sense in which the observer is uncertain about which result she will see, and the Born rule probabilities are a reflection of this uncertainty (Saunders 1998; Vaidman 1998, Ismael 2003). Wallace calls this the subjective uncertainty (SU) account. ...
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arXiv:1312.4758v2 [quant-ph] 10 Apr 2014

Probing a scattering resonance in Rydberg molecules with a Bose
Probing a scattering resonance in Rydberg molecules with a Bose

Chapter 4 from the Virtual Book of Quantum Mechanics
Chapter 4 from the Virtual Book of Quantum Mechanics

Electromagnetic vacuum fluctuations, Casimir and Van der Waals
Electromagnetic vacuum fluctuations, Casimir and Van der Waals

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Renormalization group



In theoretical physics, the renormalization group (RG) refers to a mathematical apparatus that allows systematic investigation of the changes of a physical system as viewed at different distance scales. In particle physics, it reflects the changes in the underlying force laws (codified in a quantum field theory) as the energy scale at which physical processes occur varies, energy/momentum and resolution distance scales being effectively conjugate under the uncertainty principle (cf. Compton wavelength).A change in scale is called a ""scale transformation"". The renormalization group is intimately related to ""scale invariance"" and ""conformal invariance"", symmetries in which a system appears the same at all scales (so-called self-similarity). (However, note that scale transformations are included in conformal transformations, in general: the latter including additional symmetry generators associated with special conformal transformations.)As the scale varies, it is as if one is changing the magnifying power of a notional microscope viewing the system. In so-called renormalizable theories, the system at one scale will generally be seen to consist of self-similar copies of itself when viewed at a smaller scale, with different parameters describing the components of the system. The components, or fundamental variables, may relate to atoms, elementary particles, atomic spins, etc. The parameters of the theory typically describe the interactions of the components. These may be variable ""couplings"" which measure the strength of various forces, or mass parameters themselves. The components themselves may appear to be composed of more of the self-same components as one goes to shorter distances.For example, in quantum electrodynamics (QED), an electron appears to be composed of electrons, positrons (anti-electrons) and photons, as one views it at higher resolution, at very short distances. The electron at such short distances has a slightly different electric charge than does the ""dressed electron"" seen at large distances, and this change, or ""running,"" in the value of the electric charge is determined by the renormalization group equation.
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