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Quantum Information and Randomness - Max-Planck
Quantum Information and Randomness - Max-Planck

Adiabatic.Quantum.Slow.Altshuler
Adiabatic.Quantum.Slow.Altshuler

... When N   the gaps decrease even quicker than exponentially ...
Lecture 20. Perturbation Theory: Examples
Lecture 20. Perturbation Theory: Examples

...  The EVEN energy levels are UNAFFECTED by the perturbation to first order however since their wavefunctions all VANISH at the position where the deltafunction perturbation is located ...
Loop Quantum Gravity and Its Consistency
Loop Quantum Gravity and Its Consistency

Integer Quantum Hall Effect for Bosons
Integer Quantum Hall Effect for Bosons

... gapped phase that is qualitatively different from a conventional Mott insulator, but has no ‘‘intrinsic’’ topological order—i.e., no fractional excitations and a unique ground state on topologically nontrivial manifolds? Recent work shows that the answer is yes. In fact, according to the powerful co ...
The qubits and the equations of physics
The qubits and the equations of physics

... 5. Reversibility is restored only if one extends the parameters to the field of complex numbers 6. Time emerges as a uniform parameter that tracks the sequence of actions and we derive a dynamical equation for the qubit. 7. A qubit needs a carrier, a particle of mass m, its presence in the qubit dyn ...
Document
Document

On Water, Steam and String Theory
On Water, Steam and String Theory

... group. Its basic ideas are explained with images from computer simulations of the lattice gas model. It is then briefly reviewed how the renormalization group is used to compute critical coefficients for the water-steam phase transition, in good agreement with experiment. Finally, some applications ...
The CPT Theorem
The CPT Theorem

Quantum parallelism
Quantum parallelism

E-Infinity theory and the Higgs field - SelectedWorks
E-Infinity theory and the Higgs field - SelectedWorks

... (1) If we regard the Higgs field, we see that it has eight degrees of freedom. They could be all or some of them particles. At present we think five may be particles of the Higgs type and the other three do not appear directly as any kinds of particles. (2) The Higgs field is a substitute for gravity, ...
On Top Spaces
On Top Spaces

Qunatum extractors and the quantum entropy difference problem
Qunatum extractors and the quantum entropy difference problem

The Kitaev chain: theoretical model and experiments
The Kitaev chain: theoretical model and experiments

... the semiconductor / s-wave-SC heterostructure, four ingredients, namely 1) 1 D semiconductor wire, 2) Spin-orbit interaction, 3) Zeemann-coupling and 4) Superconductivity (proximity effect by s-wave SC), are basic to mimic the theoretical model of the Kitaev chain and further the chemical potential µ ...
An Introduction to Quantum Field Theory, Mrinal Dasgupta
An Introduction to Quantum Field Theory, Mrinal Dasgupta

... of scalar fields. Furthermore, I shall use the Lagrangian formalism and canonical quantisation, thus leaving aside the quantisation approach via path integrals. Since the main motivation for these lectures is the discussion of the underlying formalism leading to the derivation of Feynman rules, the c ...
Ohio_06
Ohio_06

... Van Vleck perturbation theory remains an important tool for treating molecular vibrations as well as vibrations coupled to many other DOF. ...
Second Order Refinements for the Classical Capacity of Quantum
Second Order Refinements for the Classical Capacity of Quantum

... the hypothesis testing divergence. To do so, we need an appropriate choice of output state σB n to further upper bound log M ∗ (ε; W n , S∗n ) above. We require the following auxiliary result whose proof we omit (it is based on a construction from [9, Lm. II.4] and uses continuity results for the re ...
Review by Robert Charman in Journal of the Society for Psychical
Review by Robert Charman in Journal of the Society for Psychical

AH Physics QuantumTheoryTeachersNotes Mary
AH Physics QuantumTheoryTeachersNotes Mary

Multinucleon Transfer Reactions and Quasifission Processes in
Multinucleon Transfer Reactions and Quasifission Processes in

... calculated by the TDHF theory combined with the PNP and those of the measurements, we again find reasonable agreements. In particular, the TDHF theory describes not only proton-stripping but also proton-pickup processes. This fact indicates that a reasonable description is possible for a transitional ...
URL - StealthSkater
URL - StealthSkater

... that the flow parameters for flow lines integrate to global coordinates. So-called "Beltrami flows" are in question and mean that preferred extremals have an interpretation as perfect fluid flows for which dissipation is minimal. This property also implies the almost topological QFT property of TGD ...
pdf - ISI Foundation
pdf - ISI Foundation

Spontaneous Symmetry Breaking in Non Abelian Gauge Theories
Spontaneous Symmetry Breaking in Non Abelian Gauge Theories

... We can take a similar Lagrangian for the scalar field as above L = |∂φ|2 − V (|φ|2 ) (where Lorentz and SU (N ) index sums are implied) which has the required invariance. To promote the symmetry to a local symmetry, we must replace the derivatives with covariant derivatives Dµ = ∂µ − igAµ . The gaug ...
Field Theory on Curved Noncommutative Spacetimes
Field Theory on Curved Noncommutative Spacetimes

Explorations in Universality
Explorations in Universality

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Topological quantum field theory

A topological quantum field theory (or topological field theory or TQFT) is a quantum field theory which computes topological invariants.Although TQFTs were invented by physicists, they are also of mathematical interest, being related to, among other things, knot theory and the theory of four-manifolds in algebraic topology, and to the theory of moduli spaces in algebraic geometry. Donaldson, Jones, Witten, and Kontsevich have all won Fields Medals for work related to topological field theory.In condensed matter physics, topological quantum field theories are the low energy effective theories of topologically ordered states, such as fractional quantum Hall states, string-net condensed states, and other strongly correlated quantum liquid states.
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