Macroscopicity of Mechanical Quantum Superposition States
... translation s negligible for heavy objects, m ≫ me . In the following we will use the electron as reference particle fixing both τe and ge . Moreover, we take ge to be a Gaussian distribution in s and q, fully specified by the standard deviations σs and σq . The latter determine the main behavior of ...
... translation s negligible for heavy objects, m ≫ me . In the following we will use the electron as reference particle fixing both τe and ge . Moreover, we take ge to be a Gaussian distribution in s and q, fully specified by the standard deviations σs and σq . The latter determine the main behavior of ...
Quantum Information and Quantum Computation
... Chapter 52. Quantum Information and Quantum Computation Quantum computers store and process information at the level of individual quanta--atoms, photons, and electrons. Even if Moore's law persists, commercial quantum computers are not yet due on the shelves for another few decades; nonetheless, p ...
... Chapter 52. Quantum Information and Quantum Computation Quantum computers store and process information at the level of individual quanta--atoms, photons, and electrons. Even if Moore's law persists, commercial quantum computers are not yet due on the shelves for another few decades; nonetheless, p ...
In the early 1930s, the relativistic electron
... conservation laws, relativistic invariance, unitarity, and others, and to make the Smatrix the central element of a new theory (Pais, 1986, p. 498). This was not done because in practise it was not possible to define an S-matrix without a specific use of the theory it was intended to avoid (Cushing, ...
... conservation laws, relativistic invariance, unitarity, and others, and to make the Smatrix the central element of a new theory (Pais, 1986, p. 498). This was not done because in practise it was not possible to define an S-matrix without a specific use of the theory it was intended to avoid (Cushing, ...
Road to the Quantum Computer Now Found!
... hurdle to be cleared is quite high in order for us to comprehend a real image of it. As outsiders, we may even be frustrated by the fact that the basic concept of “superposition” (the state in which a single bit can be both 0 and 1) is hard to be understood intuitively. This concept is quite unlike ...
... hurdle to be cleared is quite high in order for us to comprehend a real image of it. As outsiders, we may even be frustrated by the fact that the basic concept of “superposition” (the state in which a single bit can be both 0 and 1) is hard to be understood intuitively. This concept is quite unlike ...
Problems with Light Emitting Devices and Their Solutions
... in nanometric space, the long-wavelength approximation, which is valid for conventional light–matter interactions, is not valid for DP-mediated interactions. As a result, an electric dipole-forbidden transition turns out to be allowed in the case of the DP-mediated interactions. In actual materials, ...
... in nanometric space, the long-wavelength approximation, which is valid for conventional light–matter interactions, is not valid for DP-mediated interactions. As a result, an electric dipole-forbidden transition turns out to be allowed in the case of the DP-mediated interactions. In actual materials, ...
Quantum Notes - MIT OpenCourseWare
... Well, according to quantum mechanics, there exist things in the world (like electrons, baseballs, and the President of the United States), and each of these things is in its own state at a given moment in time. (Note: I’ll generally use the word “particles” instead of “things” in the remainder of th ...
... Well, according to quantum mechanics, there exist things in the world (like electrons, baseballs, and the President of the United States), and each of these things is in its own state at a given moment in time. (Note: I’ll generally use the word “particles” instead of “things” in the remainder of th ...
Temperature characteristics of hot electron electroluminescence in silicon Monuko du Plessis, Hanqing Wen,
... From the measured emission spectra of silicon hot electron electroluminescent devices, it is not that easy to identify the photon generating mechanisms taking place, and thus several models have been proposed over the years to fit the experimental and simulated data. The dominant intraband c-c phot ...
... From the measured emission spectra of silicon hot electron electroluminescent devices, it is not that easy to identify the photon generating mechanisms taking place, and thus several models have been proposed over the years to fit the experimental and simulated data. The dominant intraband c-c phot ...
Syllabus: Quantum computing - University of Hawaii Physics and
... in learning a symbolic mathematics language (such as Mathematica, Maple, or Sage). The class meets twice per week, Thursdays (1:30-2:45pm) and Fridays (10:00-11:15am). ...
... in learning a symbolic mathematics language (such as Mathematica, Maple, or Sage). The class meets twice per week, Thursdays (1:30-2:45pm) and Fridays (10:00-11:15am). ...
Moksha – a Critique Raja Ramanna. Lecture delivered at the
... in India on Utopia over the centuries. The dictionary meaning of Utopia is that it is an “imaginary place with perfect social and political order, an ideally perfect place or state of things”. Moksha in Sanskrit means “deliverance, emancipation or salvation”. It has now evolved to mean “attainment o ...
... in India on Utopia over the centuries. The dictionary meaning of Utopia is that it is an “imaginary place with perfect social and political order, an ideally perfect place or state of things”. Moksha in Sanskrit means “deliverance, emancipation or salvation”. It has now evolved to mean “attainment o ...
pure
... A VD is used in its process The coincidence of adjacencies of Euclidean distance and the divergence guarantees its effectiveness. Remind: the source points are plotted so that they are uniform in the meaning of Euclidean distance, while the SEB is taken in the meaning of the divergence. ...
... A VD is used in its process The coincidence of adjacencies of Euclidean distance and the divergence guarantees its effectiveness. Remind: the source points are plotted so that they are uniform in the meaning of Euclidean distance, while the SEB is taken in the meaning of the divergence. ...
Quantum Computing Devices Quantum Bits
... If M1 and M2 are 2 x 2 matrices that describe unitary quantum gates, then it is easy to verify that the joint actions of M1 of the first qubis and M2 on the second are described by M1 ⊗ M2 This generalize to quantum systems of any size If matrices M1 and M2 define unitary mappings on Hilbert soace ...
... If M1 and M2 are 2 x 2 matrices that describe unitary quantum gates, then it is easy to verify that the joint actions of M1 of the first qubis and M2 on the second are described by M1 ⊗ M2 This generalize to quantum systems of any size If matrices M1 and M2 define unitary mappings on Hilbert soace ...
Quantum Information Science and Technology
... and Technology • Some history: -1920’s…scientists invent the quantum formalism to provide a mathematical framework for “predicting” (retroactively) certain puzzling observations…e.g., why don’t electrons spiral into the nucleus of an atom? -this quantum formalism predicts all sorts of weird and non- ...
... and Technology • Some history: -1920’s…scientists invent the quantum formalism to provide a mathematical framework for “predicting” (retroactively) certain puzzling observations…e.g., why don’t electrons spiral into the nucleus of an atom? -this quantum formalism predicts all sorts of weird and non- ...
Quantum Communication: A real Enigma
... The resulting set of transformations on density operators are known as trace-preserving, completely positive maps ...
... The resulting set of transformations on density operators are known as trace-preserving, completely positive maps ...
Macroscopicity of Mechanical Quantum Superposition States
... effect a translation s and a velocity boost v of the elementary particle, while gðs; qÞ is a positive, isotropic, and normalized phase-space distribution, whose standard deviations for the position and the momentum variable will be denoted by s and q . The von Neumann equation is reobtained for s ...
... effect a translation s and a velocity boost v of the elementary particle, while gðs; qÞ is a positive, isotropic, and normalized phase-space distribution, whose standard deviations for the position and the momentum variable will be denoted by s and q . The von Neumann equation is reobtained for s ...
Quantum Information and Randomness - Max-Planck
... outcome is possible at each measurement – is therefore given up. Quantum randomness is connected with the superposition principle, i.e. the possibility that a system can be in a combination of a variety of different states. For example, the particle may be in a superposition of different places and ...
... outcome is possible at each measurement – is therefore given up. Quantum randomness is connected with the superposition principle, i.e. the possibility that a system can be in a combination of a variety of different states. For example, the particle may be in a superposition of different places and ...
The Consistent Histories Interpretation of Quantum Mechanics
... Measurement is a catchall term for a grab bag of problems. For present purposes we consider three aspects. The first is the traditional theory of measurement stemming from von Neumann (1955, chap. 6) and Wigner3 . The object to be measured and the measuring apparatus together can be represented by a ...
... Measurement is a catchall term for a grab bag of problems. For present purposes we consider three aspects. The first is the traditional theory of measurement stemming from von Neumann (1955, chap. 6) and Wigner3 . The object to be measured and the measuring apparatus together can be represented by a ...