
Lecture 1 - Particle Physics Research Centre
... If particle has a single definite momentum it is represented by a single sine wave with fixed λ But - wave is spread out in space - cannot be localised to a single point Particle with less well defined energy: i.e. a very very narrow range of momentum Δp ⇒ several sine waves are used to describe it ...
... If particle has a single definite momentum it is represented by a single sine wave with fixed λ But - wave is spread out in space - cannot be localised to a single point Particle with less well defined energy: i.e. a very very narrow range of momentum Δp ⇒ several sine waves are used to describe it ...
Quantum Rotations: A Case Study in Static and Dynamic Machine
... is used for path-finding algorithms[17]. In a quantum random walk, the direction and length of each step in the walk are determined by the state of a qubit. When implemented without rotations, quantum walks are very similar to classical walks. At each step, all moves have equal probability and equal ...
... is used for path-finding algorithms[17]. In a quantum random walk, the direction and length of each step in the walk are determined by the state of a qubit. When implemented without rotations, quantum walks are very similar to classical walks. At each step, all moves have equal probability and equal ...
Chapter 42
... These are the orbits in which the atom does not emit energy in the form of electromagnetic radiation, even though it is accelerating. Therefore, the energy of the atom remains constant and classical mechanics can be used to describe the electron’s motion. This representation claims the centrip ...
... These are the orbits in which the atom does not emit energy in the form of electromagnetic radiation, even though it is accelerating. Therefore, the energy of the atom remains constant and classical mechanics can be used to describe the electron’s motion. This representation claims the centrip ...
Quantum computing: An IBM perspective
... implementation of a three-qubit quantum search algorithm [32], a five-qubit order-finding algorithm [33], the realization of an adiabatic quantum optimization algorithm [34], and a demonstration of Shor’s factoring algorithm [35] (factoring the number 15 using a seven-spin molecule). These demonstrati ...
... implementation of a three-qubit quantum search algorithm [32], a five-qubit order-finding algorithm [33], the realization of an adiabatic quantum optimization algorithm [34], and a demonstration of Shor’s factoring algorithm [35] (factoring the number 15 using a seven-spin molecule). These demonstrati ...
Sections 3 - Columbia Physics
... 1. Consider the idealized experimental setup shown at the right. A beam of neutral, spin-1/2 atoms enters from the left (region A) moving with velocity v. This beam is separated into two parallel beams according to the atom’s value of Sz by a region of inhomogeneous magnet field. These two separate ...
... 1. Consider the idealized experimental setup shown at the right. A beam of neutral, spin-1/2 atoms enters from the left (region A) moving with velocity v. This beam is separated into two parallel beams according to the atom’s value of Sz by a region of inhomogeneous magnet field. These two separate ...
Derivation of new quantum hydrodynamic equations using entropy
... where λ is the scaled Debye length and C = C(x) the doping concentration characterizing the semiconductor device. Notice that the collision-less Wigner equation is formally equivalent to the Heisenberg equation for the density matrix. The above approach allows for an abstract formulation of the coll ...
... where λ is the scaled Debye length and C = C(x) the doping concentration characterizing the semiconductor device. Notice that the collision-less Wigner equation is formally equivalent to the Heisenberg equation for the density matrix. The above approach allows for an abstract formulation of the coll ...
The Emergence and Interpretation of Probability
... that the distribution postulate has roughly the same justification as the microcanonical probability posit—so long as no one asks what that justification is! If one asks this question, foundational bedlam arises again, this time at the sub-quantum level. Before delving into the topic further, let’s ...
... that the distribution postulate has roughly the same justification as the microcanonical probability posit—so long as no one asks what that justification is! If one asks this question, foundational bedlam arises again, this time at the sub-quantum level. Before delving into the topic further, let’s ...
slides - Vanderbilt HEP
... Let’s try to observe through which slit the electron will go Shine light near the slits: photons scattered from the electron will come to our eyes – bingo ! We know which way the electron went! Hmm… it looks like we are disturbing the electrons with the light! Of course – we know that light has E an ...
... Let’s try to observe through which slit the electron will go Shine light near the slits: photons scattered from the electron will come to our eyes – bingo ! We know which way the electron went! Hmm… it looks like we are disturbing the electrons with the light! Of course – we know that light has E an ...
Kazakov - From Sigma Models to Four-dimensional QFT
... • Hirota dynamics: attempt of a unified approach to integrability of spin chains and sigma models • New approach to quantum gl(K|N) spin chains based on explicit construction of Baxter’s Q-operators and Backlund flow (nesting) ...
... • Hirota dynamics: attempt of a unified approach to integrability of spin chains and sigma models • New approach to quantum gl(K|N) spin chains based on explicit construction of Baxter’s Q-operators and Backlund flow (nesting) ...
EXPERIMENT 17 To Determine Avogadro`s Number by
... viscosity of the fluid in which it was suspended and the temperature of the fluid. Many observers noted that these particles appeared to behave in the same way as the molecules of an ideal gas should behave according to the Kinetic Theory. The explanation of Brownian Motion was first given by Einste ...
... viscosity of the fluid in which it was suspended and the temperature of the fluid. Many observers noted that these particles appeared to behave in the same way as the molecules of an ideal gas should behave according to the Kinetic Theory. The explanation of Brownian Motion was first given by Einste ...
Quantum monodromy in the two-centre problem Waalkens
... Published 7 May 2003 Online at stacks.iop.org/JPhysA/36/L307 Abstract Using modern tools from the geometric theory of Hamiltonian systems it is shown that electronic excitations in diatoms which can be modelled by the two-centre problem exhibit a complicated case of classical and quantum monodromy. ...
... Published 7 May 2003 Online at stacks.iop.org/JPhysA/36/L307 Abstract Using modern tools from the geometric theory of Hamiltonian systems it is shown that electronic excitations in diatoms which can be modelled by the two-centre problem exhibit a complicated case of classical and quantum monodromy. ...
Communications: Entanglement switch for dipole arrays
... All other dipole-dipole coupling constants ⍀i,j⫽i⫾1 can be expressed in terms of ⍀. Thus, we have two parameters to vary, the ratio / ⍀ and temperature kT. At kT ⬃ 0 one has a constant entanglement over a long ratio / ⍀ and sharp transitions or jumps to lower values at other values of / ⍀. It ...
... All other dipole-dipole coupling constants ⍀i,j⫽i⫾1 can be expressed in terms of ⍀. Thus, we have two parameters to vary, the ratio / ⍀ and temperature kT. At kT ⬃ 0 one has a constant entanglement over a long ratio / ⍀ and sharp transitions or jumps to lower values at other values of / ⍀. It ...
Supplement on Lagrangian, Hamiltonian Mechanics
... • Sometimes the situation ∂L/∂t = 0 is described as one in which the Lagrangian has no explicit time dependence. This terminology is fine if one knows what it means. E.g., because of the cos bt term the Lagrangian in (9) has an explicit time dependence. ⋆ By contrast, when using the symbol dL/dt we ...
... • Sometimes the situation ∂L/∂t = 0 is described as one in which the Lagrangian has no explicit time dependence. This terminology is fine if one knows what it means. E.g., because of the cos bt term the Lagrangian in (9) has an explicit time dependence. ⋆ By contrast, when using the symbol dL/dt we ...
I II III
... “An order of magnitude calculation means we accept errors of up to a factor of 10. What kind of a theory is that?” A great theory, if that’s the best you can do! Or if you just want to develop a feel for the physics. Obviously, in “real life” we would use the full expression, with no approximations ...
... “An order of magnitude calculation means we accept errors of up to a factor of 10. What kind of a theory is that?” A great theory, if that’s the best you can do! Or if you just want to develop a feel for the physics. Obviously, in “real life” we would use the full expression, with no approximations ...