slides
... the right thing to get quantum mechanics as it is used by physicists. Quantum mechanics is a probabilistic theory that makes claims about the probabilities of events; e.g. that the probability that a certain particle will hit a screen in a particular region is such an such, that a spin measurement w ...
... the right thing to get quantum mechanics as it is used by physicists. Quantum mechanics is a probabilistic theory that makes claims about the probabilities of events; e.g. that the probability that a certain particle will hit a screen in a particular region is such an such, that a spin measurement w ...
WHAT IS A PHOTON? Spontaneous emission
... theory of the photon. The treatment I give is in the spirit of a treatment you can find in Dirac’s quantum mechanics monograph, The Principles of Quantum Mechanics. I believe that Dirac was one of the first (if not the first) person to work out these ideas. Along the way, we will be generalizing the ...
... theory of the photon. The treatment I give is in the spirit of a treatment you can find in Dirac’s quantum mechanics monograph, The Principles of Quantum Mechanics. I believe that Dirac was one of the first (if not the first) person to work out these ideas. Along the way, we will be generalizing the ...
Poincaré, Heisenberg, Gödel. Some limits of scientific knowledge.
... Quantum measurement. “Wave-packet collapse” ...
... Quantum measurement. “Wave-packet collapse” ...
Categorifying Fundamental Physics John Baez Despite the
... Categorifying Fundamental Physics John Baez Despite the incredible progress over most of the 20th century, and a continuing flow of new observational discoveries — neutrino oscillations, dark matter, dark energy, and evidence for inflation — theoretical research in fundamental physics seems to be in ...
... Categorifying Fundamental Physics John Baez Despite the incredible progress over most of the 20th century, and a continuing flow of new observational discoveries — neutrino oscillations, dark matter, dark energy, and evidence for inflation — theoretical research in fundamental physics seems to be in ...
Third lecture, 21.10.03 (von Neumann measurements, quantum
... The interaction entangles the two, and as we have seen, this entanglement is the source of decoherence. It is often also described as "back-action" of the measuring device on the measured system. Unless Px, the momentum of the pointer, is perfectly well-defined, then the interaction Hamiltonian Hint ...
... The interaction entangles the two, and as we have seen, this entanglement is the source of decoherence. It is often also described as "back-action" of the measuring device on the measured system. Unless Px, the momentum of the pointer, is perfectly well-defined, then the interaction Hamiltonian Hint ...
The presentation template
... Space-borne clocks, with much longer interaction times than possible on earth, will benefit from colder atoms. A BEC can provide the really cold temperatures needed. ...
... Space-borne clocks, with much longer interaction times than possible on earth, will benefit from colder atoms. A BEC can provide the really cold temperatures needed. ...
5.2 The Wave Equation
... (remember, in Newtonian mechanics momentum is related to velocity, which is the first derivative of position) and E represents the operator /t. Our simple “conservation of energy” equation was really a linear differential equation. We have “justified” Schrödinger's equation, but not derived it. Th ...
... (remember, in Newtonian mechanics momentum is related to velocity, which is the first derivative of position) and E represents the operator /t. Our simple “conservation of energy” equation was really a linear differential equation. We have “justified” Schrödinger's equation, but not derived it. Th ...
Quantum Information Science
... Using quantum mechanics, a device can be built that can handle information in a way no classical machine will be able to reproduce, such as the determination of the prime factors of very large numbers in an amount of time not much more than what is needed to do multiplications and other basic arithm ...
... Using quantum mechanics, a device can be built that can handle information in a way no classical machine will be able to reproduce, such as the determination of the prime factors of very large numbers in an amount of time not much more than what is needed to do multiplications and other basic arithm ...
The Computer Science Picture of Reality
... • Suppose we had a very efficient classical cryptosystem that we believed was quantum resistant. What kind of evidence could we present to “prove” it? (Don’t have a working quantum computer to run heuristics) • The answer relies crucially on our understanding of the power and limitations of quantum ...
... • Suppose we had a very efficient classical cryptosystem that we believed was quantum resistant. What kind of evidence could we present to “prove” it? (Don’t have a working quantum computer to run heuristics) • The answer relies crucially on our understanding of the power and limitations of quantum ...
Paper
... total energies and the experiment is remarkably good. As regard quantum pressures, they are much better than the classical LJ estimates and close to the experimental values (sp1). At sp2, the FH pressures are, however, far from the experimental values. It turns out that the higher the density the la ...
... total energies and the experiment is remarkably good. As regard quantum pressures, they are much better than the classical LJ estimates and close to the experimental values (sp1). At sp2, the FH pressures are, however, far from the experimental values. It turns out that the higher the density the la ...
10 Wave Functions of Lonely Electrons - KSU Physics
... This wave function has a probability different from zero only in a small region. It moves as the electron moves. So, it fits the need for our purposes. All measurements indicate that the electron is a very small object. It is essentially a point in space. So, the “bumps” on the wave functions in Fi ...
... This wave function has a probability different from zero only in a small region. It moves as the electron moves. So, it fits the need for our purposes. All measurements indicate that the electron is a very small object. It is essentially a point in space. So, the “bumps” on the wave functions in Fi ...
First-Person Plural Quantum Mechanics
... sense of quantum mechanics itself, is the distinction between two concepts of reality: (I) a transcendental reality undisclosed in experience, which for Kant was the intrinsically unknowable cause of experience, and (II) the product of a mental synthesis—a synthesis based on the spatiotemporal struc ...
... sense of quantum mechanics itself, is the distinction between two concepts of reality: (I) a transcendental reality undisclosed in experience, which for Kant was the intrinsically unknowable cause of experience, and (II) the product of a mental synthesis—a synthesis based on the spatiotemporal struc ...
Limitations of Quantum Advice and One-Way
... (Won’t say any more about this one) Ambainis: Suppose Alice has x,yFp and Bob has a,bFp. They want to know whether yax+b. 1-way quantum communication complexity? ...
... (Won’t say any more about this one) Ambainis: Suppose Alice has x,yFp and Bob has a,bFp. They want to know whether yax+b. 1-way quantum communication complexity? ...