Dissipative decoherence in the Grover algorithm
... found in [13,14] for other quantum algorithms with dissipative decoherence. This means that the decay rate relation (6) gives a universal description of dissipative decoherence in various quantum algorithms. Therefore it is possible to compare the three classes of quantum errors described at the beg ...
... found in [13,14] for other quantum algorithms with dissipative decoherence. This means that the decay rate relation (6) gives a universal description of dissipative decoherence in various quantum algorithms. Therefore it is possible to compare the three classes of quantum errors described at the beg ...
MS-word - Table of Contents
... centuries. The natural philosophers believed that there is a physical reality of nature which when we find it will tell us the origin of the natural laws and the connections between microphysics and cosmology. Richard Feynman wrote of this, in connection with the Conservation of Energy. He said, "Na ...
... centuries. The natural philosophers believed that there is a physical reality of nature which when we find it will tell us the origin of the natural laws and the connections between microphysics and cosmology. Richard Feynman wrote of this, in connection with the Conservation of Energy. He said, "Na ...
Chapter4 Nuclear atom - UCF College of Sciences
... sphere of radius 10-10 m, containing electrons as in the Thomson model, only a very small scattering deflection angle could be observed. Such model could not possibly account for the large angles scattering. The unexpected large angles α-particles scattering was described by Rutherford with these wo ...
... sphere of radius 10-10 m, containing electrons as in the Thomson model, only a very small scattering deflection angle could be observed. Such model could not possibly account for the large angles scattering. The unexpected large angles α-particles scattering was described by Rutherford with these wo ...
Commun. Math. Phys. 227, 605 (2002).
... deal with the usual errors arising from decoherence as well as a novel “qubit smearing error” resulting from imbedding the computational qubits within a modular functor super-space. To explain our approach we initially ignore all errors; in particular formula (1) below is a simplification valid only ...
... deal with the usual errors arising from decoherence as well as a novel “qubit smearing error” resulting from imbedding the computational qubits within a modular functor super-space. To explain our approach we initially ignore all errors; in particular formula (1) below is a simplification valid only ...
Quantum Discord: A Measure of the Quantumness of Correlations
... Classical information is locally accessible, and can be obtained without perturbing the state of the system: One can interrogate just one part of a composite system and discover its state while leaving the overall density matrix (as perceived by observers that do not have access to the measurement o ...
... Classical information is locally accessible, and can be obtained without perturbing the state of the system: One can interrogate just one part of a composite system and discover its state while leaving the overall density matrix (as perceived by observers that do not have access to the measurement o ...
Physical Composition
... on the imagination of scientists and philosophers long before they were taken to be practicing separate disciplines. Among rival conceptions of this structure upheld by various pre-Socratic thinkers, it is the atomic hypothesis of Democritus and Leucippus that has had the most lasting influence on t ...
... on the imagination of scientists and philosophers long before they were taken to be practicing separate disciplines. Among rival conceptions of this structure upheld by various pre-Socratic thinkers, it is the atomic hypothesis of Democritus and Leucippus that has had the most lasting influence on t ...
2011 STEP 1 - Mathshelper
... Suppose that the rate at which water leaks out of the tank is proportional to h (instead of h), and that when the height reaches α2 H, where α is a constant greater than 1, the height remains constant. Show that the time T 0 taken for the water to reach height αH is given by ...
... Suppose that the rate at which water leaks out of the tank is proportional to h (instead of h), and that when the height reaches α2 H, where α is a constant greater than 1, the height remains constant. Show that the time T 0 taken for the water to reach height αH is given by ...
1 = A
... It was noticed (W. Pauli, 1927, V.A. Fock, 1935) that the Schroedinger equation with this potential is in fact 4-dimensional (in {p,ε}-space) . As a result three more generators may be introduced which form a Runge-Lenz vector (L=iħI) ...
... It was noticed (W. Pauli, 1927, V.A. Fock, 1935) that the Schroedinger equation with this potential is in fact 4-dimensional (in {p,ε}-space) . As a result three more generators may be introduced which form a Runge-Lenz vector (L=iħI) ...
Quantum Wires and Quantum Point Contacts
... non-Ohmic system: the series resistance is much smaller than the sum of the individual QPC resistances One needs quantum mechanics to understand such behavior – after the first QPC the electron beam gets collimated, and then it is prepared to pass through the second QPC without backscattering. ...
... non-Ohmic system: the series resistance is much smaller than the sum of the individual QPC resistances One needs quantum mechanics to understand such behavior – after the first QPC the electron beam gets collimated, and then it is prepared to pass through the second QPC without backscattering. ...
Time-dependent perturbation
... Therefore, the “energy conservation” is now changed to Ef = Ei ± ~ω. It was expected that the energy is strictly not conserved in the presence of a harmonic perturbation, because there is no time-translation invariance. However, there is a discrete time translational invariance by t → t + 2π/ω. Simi ...
... Therefore, the “energy conservation” is now changed to Ef = Ei ± ~ω. It was expected that the energy is strictly not conserved in the presence of a harmonic perturbation, because there is no time-translation invariance. However, there is a discrete time translational invariance by t → t + 2π/ω. Simi ...
Hidden symmetries in the energy levels of excitonic `artificial atoms`
... recombination. These configurations are almost degenerate and the mean energy of the p-shell emission does not depend on its population. Therefore it also gives no clear signatures for the exciton number in the dot. In contrast, the s-shell recombination does give such signatures, which for dot occu ...
... recombination. These configurations are almost degenerate and the mean energy of the p-shell emission does not depend on its population. Therefore it also gives no clear signatures for the exciton number in the dot. In contrast, the s-shell recombination does give such signatures, which for dot occu ...
F1 In the Bohr model, the quantum number n gives the orbital
... (a) In the Bohr model, there is one state with orbital angular momentum of magnitude 3˙. It is the state with quantum number n = 3. Its energy is E = −13.6 eV 32 = −1.5 eV (b) In the Schrödinger model, the magnitude of the orbital angular momentum is l(l + 1) ˙ with l an integer. The magnitude is th ...
... (a) In the Bohr model, there is one state with orbital angular momentum of magnitude 3˙. It is the state with quantum number n = 3. Its energy is E = −13.6 eV 32 = −1.5 eV (b) In the Schrödinger model, the magnitude of the orbital angular momentum is l(l + 1) ˙ with l an integer. The magnitude is th ...
Details
... has a significant drawback as it decreases the coupling between the two systems. Therefore, a new approach to improve the lifetime of the diamond memory without such drawbacks was looked for. Next, an unknown long-lived state was observed in a superconductor diamond quantum hybrid system (Fig. 2). ...
... has a significant drawback as it decreases the coupling between the two systems. Therefore, a new approach to improve the lifetime of the diamond memory without such drawbacks was looked for. Next, an unknown long-lived state was observed in a superconductor diamond quantum hybrid system (Fig. 2). ...
SOLID STATE PHYSICS (SSP) – PHY-550
... states are physically realistic and specify the ways in which a particle moves from one state to another. Quantum state: characterised by a unique set of quantum numbers that ‘index’ the state. NB We can describe a quantum state even when there is nothing in it! The quantum state may have a velocity ...
... states are physically realistic and specify the ways in which a particle moves from one state to another. Quantum state: characterised by a unique set of quantum numbers that ‘index’ the state. NB We can describe a quantum state even when there is nothing in it! The quantum state may have a velocity ...
Chance in the Everett Interpretation
... is common ground to every theory of probability. Distinctive, in EQM, is that given an account of what probabilities actually are (branching structures), and given that in EQM we can model any measurement process as comprehensively as we please (including ‘the observer’ if need be) it becomes a pure ...
... is common ground to every theory of probability. Distinctive, in EQM, is that given an account of what probabilities actually are (branching structures), and given that in EQM we can model any measurement process as comprehensively as we please (including ‘the observer’ if need be) it becomes a pure ...
Quantum electrodynamics
In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. QED mathematically describes all phenomena involving electrically charged particles interacting by means of exchange of photons and represents the quantum counterpart of classical electromagnetism giving a complete account of matter and light interaction.In technical terms, QED can be described as a perturbation theory of the electromagnetic quantum vacuum. Richard Feynman called it ""the jewel of physics"" for its extremely accurate predictions of quantities like the anomalous magnetic moment of the electron and the Lamb shift of the energy levels of hydrogen.