Quantum Complexity and Fundamental Physics
... “A quantum computer is obviously just a souped-up analog computer: continuous voltages, continuous amplitudes, what’s the difference?” “A quantum computer with 400 qubits would have ~2400 classical bits, so it would violate a cosmological entropy bound” “My classical cellular automaton model can exp ...
... “A quantum computer is obviously just a souped-up analog computer: continuous voltages, continuous amplitudes, what’s the difference?” “A quantum computer with 400 qubits would have ~2400 classical bits, so it would violate a cosmological entropy bound” “My classical cellular automaton model can exp ...
Quantum Fusion Hypothesis Abstract
... energy are driven by what Profusion Energy calls Q or quantum compression energy. This is used to stimulate super confinement waves in the lattice. The primary Q pulse delivers the bulk of its power in ~100ns achieving a peak current density of over 7 thousand amps per square mm. The polarity of the ...
... energy are driven by what Profusion Energy calls Q or quantum compression energy. This is used to stimulate super confinement waves in the lattice. The primary Q pulse delivers the bulk of its power in ~100ns achieving a peak current density of over 7 thousand amps per square mm. The polarity of the ...
Atomic Structure MC Review_ corrected
... B. explains the emission spectra of hydrogen atoms. C. predicts the energy levels of multi-electron atoms. D. Both a and b 5. The quantum-mechanical model of the atom A. describes an electron probability distribution that determines the most likely location of an electron. B. is the currently accept ...
... B. explains the emission spectra of hydrogen atoms. C. predicts the energy levels of multi-electron atoms. D. Both a and b 5. The quantum-mechanical model of the atom A. describes an electron probability distribution that determines the most likely location of an electron. B. is the currently accept ...
Computational Complexity and Physics
... Given an n-qubit pure state |BHR produced by a known, poly-size quantum circuit. Promised that, by acting only on R (the “Hawking radiation”), it’s possible to distill an EPR pair (|00+|11)/√2 between R and B (the “black hole interior”). Distill such a pair, by applying a unitary transformation ...
... Given an n-qubit pure state |BHR produced by a known, poly-size quantum circuit. Promised that, by acting only on R (the “Hawking radiation”), it’s possible to distill an EPR pair (|00+|11)/√2 between R and B (the “black hole interior”). Distill such a pair, by applying a unitary transformation ...
Chapter
... mathematical expressions called WAVE FUNCTIONS ψ (psi) wave function ψ has an amplitude（振幅） at each position in space (just as for a water wave or a classical electromagnetic wave). ...
... mathematical expressions called WAVE FUNCTIONS ψ (psi) wave function ψ has an amplitude（振幅） at each position in space (just as for a water wave or a classical electromagnetic wave). ...
Science
... In the wonderful world of quantum mechanics, electrons can, for example, have a left and a right spin at the same time. The possible combinations are unlimited, for example some right spin and a lot of left spin, or vice versa. Theoretically, this means that certain types of calculations can be perf ...
... In the wonderful world of quantum mechanics, electrons can, for example, have a left and a right spin at the same time. The possible combinations are unlimited, for example some right spin and a lot of left spin, or vice versa. Theoretically, this means that certain types of calculations can be perf ...
They survive monitoring by the environment to leave `descendants
... perturbed," says Zurek. These special states are called 'pointer states', and although they are still quantum states, they turn out to look like classical ones. For example, objects in pointer states seem to occupy a well-defined position, rather than being smeared out in space. The traditional appr ...
... perturbed," says Zurek. These special states are called 'pointer states', and although they are still quantum states, they turn out to look like classical ones. For example, objects in pointer states seem to occupy a well-defined position, rather than being smeared out in space. The traditional appr ...
Foundations of Quantum Mechanics - damtp
... mechanics is based on operators acting on vectors in some vector space. A wavefunction ψ corresponds to some abstract vector |ψi, a ket vector. |ψi represents the state of some physical system described by the vector space. If |ψ1 i and |ψ2 i are ket vectors then |ψi = a1 |ψ1 i + a2 |ψ2 i is a possi ...
... mechanics is based on operators acting on vectors in some vector space. A wavefunction ψ corresponds to some abstract vector |ψi, a ket vector. |ψi represents the state of some physical system described by the vector space. If |ψ1 i and |ψ2 i are ket vectors then |ψi = a1 |ψ1 i + a2 |ψ2 i is a possi ...
Epistemology_and_QM_v1
... like waves. The problems raised by that “particle/wave duality” have remained at the core of philosophical discussions of quantum mechanics, and interpretations have been extended as our knowledge has expanded. Because of the difficulties pointed out by Heisenberg, the behavior in the wave-like regi ...
... like waves. The problems raised by that “particle/wave duality” have remained at the core of philosophical discussions of quantum mechanics, and interpretations have been extended as our knowledge has expanded. Because of the difficulties pointed out by Heisenberg, the behavior in the wave-like regi ...
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.