1 The quantum-classical boundary and the moments of inertia of
... Furthermore, there is evidence that certain additional effects may be involved in quantum to classical transitions (Kofler and Brukner; Leggett, 2005; Adler and Bassi; Bhattacharya et al., 2004; Herzenberg, 2006(a) – 2007(c)). These include, for example, size limitations in measurement processes, co ...
... Furthermore, there is evidence that certain additional effects may be involved in quantum to classical transitions (Kofler and Brukner; Leggett, 2005; Adler and Bassi; Bhattacharya et al., 2004; Herzenberg, 2006(a) – 2007(c)). These include, for example, size limitations in measurement processes, co ...
Quantum Gaussian Noise - Research Laboratory of Electronics
... states: the noise squeezed out of one phase angle must appear in the π/2-rad-shifted quadrature. In Fig. 6 we show an amplitude-squeezed state; its low-noise quadrature is in phase with its mean value, hence its noisy-sinusoid time waveform has greatest accuracy near peaks and troughs of the wave. I ...
... states: the noise squeezed out of one phase angle must appear in the π/2-rad-shifted quadrature. In Fig. 6 we show an amplitude-squeezed state; its low-noise quadrature is in phase with its mean value, hence its noisy-sinusoid time waveform has greatest accuracy near peaks and troughs of the wave. I ...
Shamsul Kaonain
... quantum effects to send signals faster than light, a big no-no according to Einstein's theory of relativity. The resolution of this problem turns out to hinge on whether it is possible to clone an unknown quantum state, that is, construct a copy of a quantum state. Cloning turns out not to be possib ...
... quantum effects to send signals faster than light, a big no-no according to Einstein's theory of relativity. The resolution of this problem turns out to hinge on whether it is possible to clone an unknown quantum state, that is, construct a copy of a quantum state. Cloning turns out not to be possib ...
First-order strong-field QED processes in a tightly focused laser beam
... the mentioned experimentally achieved laser intensities we can conclude that present technology allows in principle entering the strong-field QED regime. For the sake of completeness, we have to remind readers that another requirement for entering the strong-field regime is the importance of nonline ...
... the mentioned experimentally achieved laser intensities we can conclude that present technology allows in principle entering the strong-field QED regime. For the sake of completeness, we have to remind readers that another requirement for entering the strong-field regime is the importance of nonline ...
![Probability in Bohmian Mechanics[1]](http://s1.studyres.com/store/data/001567507_1-29d8fd2fe0d2e1e754834ae0307e0c62-300x300.png)
Fermion-Fermion and Boson-Boson Interactions at low
... At the Feshbach-Resonance, a diverges as with November 12, 2009 | Christian Stahl | 21 ...
... At the Feshbach-Resonance, a diverges as with November 12, 2009 | Christian Stahl | 21 ...
Kinetics of decay of metastable gas phase of polarized atomic
... In the final spin s t a t e , the total nuclear spin of the system i s equal to unity [if we disregard the s m a l l addition to the wave function, proportional to the parame t e r x(1.2)], i . e . , we a r e dealing with an orthohydrogen quasimolecule, f o r which, a s i s well known, the rotationa ...
... In the final spin s t a t e , the total nuclear spin of the system i s equal to unity [if we disregard the s m a l l addition to the wave function, proportional to the parame t e r x(1.2)], i . e . , we a r e dealing with an orthohydrogen quasimolecule, f o r which, a s i s well known, the rotationa ...
Introduction to quantum computation
... continuous variables with arbitrary large precision, which would not be practically feasible, and it was shown that whenever errors would occur during the computation, the analog computer could not beat the Universal Turing Machine anymore. While the analog computation model did therefore not contr ...
... continuous variables with arbitrary large precision, which would not be practically feasible, and it was shown that whenever errors would occur during the computation, the analog computer could not beat the Universal Turing Machine anymore. While the analog computation model did therefore not contr ...
"Liquid-State NMR Quantum Computing" in
... y axis” is in the state (|0 + i|1)/ 2, etc. A spin-1/2 particle is thus more than just an ordinary bit. Any two-level quantum system, such as a spin-1/2 particle, can serve as a quantum bit (qubit). The difference between the quantum and classical descriptions becomes clear as soon as more than on ...
... y axis” is in the state (|0 + i|1)/ 2, etc. A spin-1/2 particle is thus more than just an ordinary bit. Any two-level quantum system, such as a spin-1/2 particle, can serve as a quantum bit (qubit). The difference between the quantum and classical descriptions becomes clear as soon as more than on ...
On the Physical Origin of the Lamb Shift
... which produce a difference in mass between bound and free particle and even between bound states with different angular momenta has been criticised before. It is quite well-known that Jaynes even placed a bet claiming that he could find a semi-classical description of the Lamb shift, coining the exp ...
... which produce a difference in mass between bound and free particle and even between bound states with different angular momenta has been criticised before. It is quite well-known that Jaynes even placed a bet claiming that he could find a semi-classical description of the Lamb shift, coining the exp ...
Existential Contextuality and the Models of Meyer, Kent and Clifton
... quantum mechanics. The question consequently arises, whether the phenomenon of existential contextuality, discussed in the last section, also occurs in models of this more general kind. It is easily seen that the answer to this question is in the affirmative. Let P be the set of all projection opera ...
... quantum mechanics. The question consequently arises, whether the phenomenon of existential contextuality, discussed in the last section, also occurs in models of this more general kind. It is easily seen that the answer to this question is in the affirmative. Let P be the set of all projection opera ...
Entropy, Its Language, and Interpretation
... same entities. These statements entail space and time and although they do not refer specifically to energy, they can easily be interpreted in terms of it. Earlier, Denbigh wrote [18], “As soon as it is accepted that matter consists of small particles which are in motion it becomes evident that ever ...
... same entities. These statements entail space and time and although they do not refer specifically to energy, they can easily be interpreted in terms of it. Earlier, Denbigh wrote [18], “As soon as it is accepted that matter consists of small particles which are in motion it becomes evident that ever ...
Particle in a box
In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers. The model is mainly used as a hypothetical example to illustrate the differences between classical and quantum systems. In classical systems, for example a ball trapped inside a large box, the particle can move at any speed within the box and it is no more likely to be found at one position than another. However, when the well becomes very narrow (on the scale of a few nanometers), quantum effects become important. The particle may only occupy certain positive energy levels. Likewise, it can never have zero energy, meaning that the particle can never ""sit still"". Additionally, it is more likely to be found at certain positions than at others, depending on its energy level. The particle may never be detected at certain positions, known as spatial nodes.The particle in a box model provides one of the very few problems in quantum mechanics which can be solved analytically, without approximations. This means that the observable properties of the particle (such as its energy and position) are related to the mass of the particle and the width of the well by simple mathematical expressions. Due to its simplicity, the model allows insight into quantum effects without the need for complicated mathematics. It is one of the first quantum mechanics problems taught in undergraduate physics courses, and it is commonly used as an approximation for more complicated quantum systems.