1987 onward
... Elisabetta Pallante (RUG): Effective field theories In modern field theoretical language, a field theory can a priori be thought as an effective field theory, meaning that it provides a good description of a class of phenomena for a certain range of energies, distances or number of dimensions. In th ...
... Elisabetta Pallante (RUG): Effective field theories In modern field theoretical language, a field theory can a priori be thought as an effective field theory, meaning that it provides a good description of a class of phenomena for a certain range of energies, distances or number of dimensions. In th ...
The Photoelectric Effect
... stopping potential also increased, and that the frequency is proportional to the stopping potential, as stated in equation 5. The errors acquired showed that Planck’s quantum model can be used to predict the behavior of photon energy and their effects on photoelectrons. The possible explanation for ...
... stopping potential also increased, and that the frequency is proportional to the stopping potential, as stated in equation 5. The errors acquired showed that Planck’s quantum model can be used to predict the behavior of photon energy and their effects on photoelectrons. The possible explanation for ...
A short history of fractal-Cantorian space-time
... equations of quantum mechanics. Quantization is just a very convenient way to reach the same result fast, but understanding suffers in the process of a formal analytical continuation. Similar work, but not identical, was carried out by the French cosmologist Laurent Nottale, fifteen years ago. Nottal ...
... equations of quantum mechanics. Quantization is just a very convenient way to reach the same result fast, but understanding suffers in the process of a formal analytical continuation. Similar work, but not identical, was carried out by the French cosmologist Laurent Nottale, fifteen years ago. Nottal ...
Effect of quantum fluctuations on structural phase transitions in
... degrees of freedom per simulation supercell. We use a single-flip algorithm, making trial moves of the vectors at each site in turn and testing acceptance after each move. We say that one Monte Carlo sweep ~MCS! has been completed when all vectors on all sites have been tried once. Because of the 1% ...
... degrees of freedom per simulation supercell. We use a single-flip algorithm, making trial moves of the vectors at each site in turn and testing acceptance after each move. We say that one Monte Carlo sweep ~MCS! has been completed when all vectors on all sites have been tried once. Because of the 1% ...
A Quantum Algorithm for Finding a Hamilton Circuit
... corresponding function f on the inputs, and then we get a superposed state of all possible output because of the quantum parallelism, which is the well-known advantage of quantum computation. Having obtained all the possible outputs, Ohya and Masuda algorithm assumes the distinguishability of 0 and ...
... corresponding function f on the inputs, and then we get a superposed state of all possible output because of the quantum parallelism, which is the well-known advantage of quantum computation. Having obtained all the possible outputs, Ohya and Masuda algorithm assumes the distinguishability of 0 and ...
The length of photon
... The problems of today challenge us to develop more accurate methods of manufacturing and measurements. This trend requires precise determination of fundamental physical quantities. Many manufacturing methods, such as laser processing or photolithography, are based on precisely controlled beam of lig ...
... The problems of today challenge us to develop more accurate methods of manufacturing and measurements. This trend requires precise determination of fundamental physical quantities. Many manufacturing methods, such as laser processing or photolithography, are based on precisely controlled beam of lig ...
Entanglement, Decoherence and the Quantum/Classical
... Nonlocality in quantum systems consisting of spaExplanations for this “decoherence” phenomenon can tially separated parts is even more puzzling, as Albert be traced back to discussions by the founding fathers of Einstein and collaborators Boris Podolsky and Nathan quantum mechanics, and to 50-year-o ...
... Nonlocality in quantum systems consisting of spaExplanations for this “decoherence” phenomenon can tially separated parts is even more puzzling, as Albert be traced back to discussions by the founding fathers of Einstein and collaborators Boris Podolsky and Nathan quantum mechanics, and to 50-year-o ...
PPT File
... It should be noted that the quantity G(t) can not be placed across the time-ordering symbol because of its time integral up to t . ...
... It should be noted that the quantity G(t) can not be placed across the time-ordering symbol because of its time integral up to t . ...
1 QED: Its state and its problems (Version 160815) The aim of this
... Only then, the n-th sum and of the above expression makes sense. Even after all these manipulations, convergence of the sequence is unknown. • Not every Taylor series has a sufficiently large convergence radius • A simple example that caricatures the problem is the following: ...
... Only then, the n-th sum and of the above expression makes sense. Even after all these manipulations, convergence of the sequence is unknown. • Not every Taylor series has a sufficiently large convergence radius • A simple example that caricatures the problem is the following: ...
review of Quantum Fields and Strings
... all matter and force. A classical field is a function defined on space-time whose values are scalars or vectors or some other geometrical objects. A quantum field, then, should be a field described by quantum mechanics rather than by classical mechanics. If the world is described by quantum fields, ...
... all matter and force. A classical field is a function defined on space-time whose values are scalars or vectors or some other geometrical objects. A quantum field, then, should be a field described by quantum mechanics rather than by classical mechanics. If the world is described by quantum fields, ...
Is the quantum mechanical description of physical reality complete
... Schrödinger equation, deterministic, as a complete description of physical reality,…? The answer at which we arrive is the wave-function should not be regarded as a complete description of the physical state of the system. We consider a composite system, consisting of the partial systems A and B whi ...
... Schrödinger equation, deterministic, as a complete description of physical reality,…? The answer at which we arrive is the wave-function should not be regarded as a complete description of the physical state of the system. We consider a composite system, consisting of the partial systems A and B whi ...
Quantum Computing Lecture 1 Bits and Qubits What is Quantum
... Postulate 1: A closed system is described by a unit vector in a complex inner product space. Postulate 2: The evolution of a closed system in a fixed time interval is described by a unitary transform. Postulate 3: If we measure the state |ψi of a system in an orthonormal basis |0i · · · |n − 1i, we ...
... Postulate 1: A closed system is described by a unit vector in a complex inner product space. Postulate 2: The evolution of a closed system in a fixed time interval is described by a unitary transform. Postulate 3: If we measure the state |ψi of a system in an orthonormal basis |0i · · · |n − 1i, we ...
Optical Response in Infinite Dimensions
... • DMFT (IPT) captures both sides: Insulating and Metallic • DMFT clarifies the nature of MIT transition ...
... • DMFT (IPT) captures both sides: Insulating and Metallic • DMFT clarifies the nature of MIT transition ...
Beating the Standard Quantum Limit
... imposes an intrinsic uncertainty in the values of measurement results of complementary observables such as position and momentum, or the different components of the angular momentum of a rotating object (Fig. 1). Second, every measurement apparatus is itself a quantum system: as a result, the uncert ...
... imposes an intrinsic uncertainty in the values of measurement results of complementary observables such as position and momentum, or the different components of the angular momentum of a rotating object (Fig. 1). Second, every measurement apparatus is itself a quantum system: as a result, the uncert ...
Quantum-enhanced measurements: beating the standard quantum
... fluctuations (the so-called shot noise) that affects the measurement of the electromagnetic field amplitude, and the dynamically-induced noise in the position measurement of a free mass (the so-called standard quantum limit [11]). These sources of imprecision are not as fundamental as the unavoidabl ...
... fluctuations (the so-called shot noise) that affects the measurement of the electromagnetic field amplitude, and the dynamically-induced noise in the position measurement of a free mass (the so-called standard quantum limit [11]). These sources of imprecision are not as fundamental as the unavoidabl ...
C. 11
... where S[x(t)] is the classical action associated with the path x(t) • I am being deliberately vague because we won’t ever actually use this version • It is identical with the previous one ...
... where S[x(t)] is the classical action associated with the path x(t) • I am being deliberately vague because we won’t ever actually use this version • It is identical with the previous one ...
Qubit Quantum Mechanics with Correlated-photon Experiments,
... course. The particle-labeling format gives the correct answers provided that when describing identical photon pairs, we use wave functions with the proper symmetry. To describe heralded-photon experiments where one photon goes directly to a detector and the other goes through a quantumprocessing app ...
... course. The particle-labeling format gives the correct answers provided that when describing identical photon pairs, we use wave functions with the proper symmetry. To describe heralded-photon experiments where one photon goes directly to a detector and the other goes through a quantumprocessing app ...
Lecture 13: The classical limit
... • Assuming that: – The wavepacket is very narrow – spreading is negligible on the relevant timescale ...
... • Assuming that: – The wavepacket is very narrow – spreading is negligible on the relevant timescale ...
Unit 5 The Quantum World
... - Albert Einstein Our everyday experience with both light and matter turns out to be woefully inadequate for describing how light and matter behave at the scale of atoms. Quantum mechanics told us that light is not simply the stream of electromagnetic waves described by Maxwell, but made of small pa ...
... - Albert Einstein Our everyday experience with both light and matter turns out to be woefully inadequate for describing how light and matter behave at the scale of atoms. Quantum mechanics told us that light is not simply the stream of electromagnetic waves described by Maxwell, but made of small pa ...
Physics - University of Calcutta
... 2. Basic quantum mechanics de Broglie hypothesis. Electron double-slit experiment. Compton effect, Davisson-Germer experiment, Heisenberg’s uncertainty principle (statement) with illustrations. Concept of wave function as describing the dynamical state of a single particle. Group and phase velocitie ...
... 2. Basic quantum mechanics de Broglie hypothesis. Electron double-slit experiment. Compton effect, Davisson-Germer experiment, Heisenberg’s uncertainty principle (statement) with illustrations. Concept of wave function as describing the dynamical state of a single particle. Group and phase velocitie ...
Communicating quantum processes
... c. This is similar to Jorrand and Lalire’s [8] model with added type information, but now we can go further by introducing what is known in the physics literature as an EPR source (computer scientists might regard it as an entanglement server). This process constructs the entangled pair (by using th ...
... c. This is similar to Jorrand and Lalire’s [8] model with added type information, but now we can go further by introducing what is known in the physics literature as an EPR source (computer scientists might regard it as an entanglement server). This process constructs the entangled pair (by using th ...