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Quantum Phase Transitions - Subir Sachdev
Quantum Phase Transitions - Subir Sachdev

Study Guide and Review - Chapter 1 p50 1
Study Guide and Review - Chapter 1 p50 1

... 53. MONEY Cara is making a beaded necklace for a gift. She wants to spend between $20 and $30 on the necklace. The bead store charges $2.50 for large beads and $1.25 for small beads. If she buys 3 large beads, how many small beads can she buy to stay within her budget? Write and solve a compound ine ...
Plenty of Nothing: Black Hole Entropy in Induced Gravity
Plenty of Nothing: Black Hole Entropy in Induced Gravity

... gravitational field. This conclusion leaves us practically no other choice but to try to relate the entropy of the black hole to properties of the physical vacuum in the strong gravitational field. The black hole entropy is of the same order of magnitude as the logarithm of the number of different w ...
Pair Production and the Light-front Vacuum
Pair Production and the Light-front Vacuum

... ince the invention of quantum electrodynamics (QED) as an effort to unify the special theory of relativity and quantum mechanics in the late 1920s (Dirac, 1927), quantum vacuum has emerged as an extremely interesting medium with remarkable properties to investigate. QED has been extremely successful ...
Pdf
Pdf

... problems, and their accuracy is examined. The models involve one light and one heavy degree of freedom, and exhibit substantial nonadiabatic behavior. In all of the models the coupling between the light and heavy particles is linear ~harmonic!. In addition, different external potentials are applied ...
Lecture 6: QUANTUM CIRCUITS 1. Simple Quantum Circuits We`ve
Lecture 6: QUANTUM CIRCUITS 1. Simple Quantum Circuits We`ve

... Next we will apply the quantum circuit technique to clarify something very surprising and a lot of fun - quantum teleportation! Commonly, teleportation is understood as a fictional method for transferring an object between two places by a process of dissociation, information transmission and reconst ...
Particle Physics 1
Particle Physics 1

... Cross sections are expressed in barn, which is equal to 10−24 cm2 . Energy is expressed in GeV, or 109 eV, where 1 eV is the kinetic energy an electron obtains when it is accelerated over a voltage of 1V. Exercise -1: Derive the conversion factors for mass, length and time in the table above. Exerci ...
Dynamics of a classical Hall system driven by a time-dependent
Dynamics of a classical Hall system driven by a time-dependent

... Remark that the electromotive force induced by the flux line has circulation e⳵t⌽, constant torque e⳵t⌽ / 2␲, vanishing rotation, and is long range with a 1 / r singularity at the origin, we call it the circular part. V is smooth on the entire plane so the circulation of the corresponding field is z ...
Topological Insulators
Topological Insulators

... it’s original state; this is the content of the adiabatic theorem. Moreover it’s internal clocks will register the passage of time; this can be regarded as the dynamical phase factor. The remarkable and rather mysterious result of this paper is in addition the system records its history in a deeply ...
The two-dimensional hydrogen atom revisited
The two-dimensional hydrogen atom revisited

... A semiconductor quantum well under illumination is a quasi-two-dimensional system, in which photoexcited electrons and holes are essentially confined to a plane. The mutual Coulomb interaction leads to electron–hole bound states known as excitons, which are extremely important for the optical proper ...
Strong shock waves in a dense gas: Burnett theory versus Monte
Strong shock waves in a dense gas: Burnett theory versus Monte

... model, for which the Enskog theory provides a reliable description over a wide range of length and time scales @15#. In this framework, the Navier-Stokes coefficients @16# and the linear Burnett coefficients derived from the standard Enskog theory ~SET! @17# and from the revised Enskog theory ~RET! ...
Stochastic simulations of conditional states of partially observed
Stochastic simulations of conditional states of partially observed

... a general rule we will push this point of view throughout the rest of this paper. However, it is important to point out the key differences between these theories. In the quantum case we can always write thepmeasurement operator (or Kraus operator) as M̂r = Ûr F̂r where Ur is a unitary operator. Th ...
The renormalization of the energy-momentum tensor for an effective initial... Hael Collins R. Holman *
The renormalization of the energy-momentum tensor for an effective initial... Hael Collins R. Holman *

... infinities in the process of extracting its classical predictions. The most familiar example of this property is the set of divergences that appear in the perturbative evaluation of a matrix element in an interacting field theory. Yet divergences also occur in a perfectly free field theory, when we ...
Halperin Presentation - National Academy of Sciences
Halperin Presentation - National Academy of Sciences

... "Discoveries of superfluid phases in 3He, high Tc superconductors, graphene and topological insulators have brought into focus materials where quasiparticles are described by the same Dirac equation that governs behavior of relativistic particles. This class of materials, called Dirac materials, exh ...
Effective Field Theory, Past and Future
Effective Field Theory, Past and Future

... without derivatives that transforms as the fourth component of a chiral fourvector. None of this relies on the methods of current algebra, though one can use the Lagrangian (5) to calculate the Noether current corresponding to chiral transformations, and recover the Goldberger-Treiman relation in th ...
QUANTUM FIELD THEORY
QUANTUM FIELD THEORY

Word Problems Involving Systems of Linear Equations
Word Problems Involving Systems of Linear Equations

... things. But notice that these examples tell me what the general equation should be: The number of items times the cost (or value) per item gives the total cost (or value). This is where I get the headings on the tables below. You’ll see that the same idea is used to set up the tables for all of thes ...
Sect. 18: The Strong Force
Sect. 18: The Strong Force

Log-rolling and kayaking: periodic dynamics of a nematic liquid
Log-rolling and kayaking: periodic dynamics of a nematic liquid

functions and (so-called px- and py-orbitals) are linear combinations
functions and (so-called px- and py-orbitals) are linear combinations

Quantum Field Theory I, Lecture Notes
Quantum Field Theory I, Lecture Notes

Quantum Field Theory in a Non-Commutative Space: Sphere ?
Quantum Field Theory in a Non-Commutative Space: Sphere ?

... the one-loop effective action, as it induces a weakly non-local, l-dependent, deformation of the dispersion relation on the fuzzy sphere. This effect has no analogue in the commutative setting, and is therefore called the “non-commutative anomaly”. In order to recover the correct model in the commut ...
Quantization as a Kan extension
Quantization as a Kan extension

... Schreiber has since collected many toy examples supporting this thesis. In this note we add the following substantial fact: It is indeed true that the quantum propagator arises as a pushforward (pushforward being Kan extension), at least in a suitably discretized setup. Or rather, we prove a very ge ...
Can Mind Affect Matter Via Active Information?
Can Mind Affect Matter Via Active Information?

Shock waves, rarefaction waves and non
Shock waves, rarefaction waves and non

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Instanton

An instanton (or pseudoparticle) is a notion appearing in theoretical and mathematical physics. An instanton is a classical solution to equations of motion with a finite, non-zero action, either in quantum mechanics or in quantum field theory. More precisely, it is a solution to the equations of motion of the classical field theory on a Euclidean spacetime.
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