In the early 1930s, the relativistic electron
... The S-matrix program was originally developed by W. Heisenberg as an alternative to quantum field theory. His idea was to sidestep the problem of divergences in quantum field theory – in his view due to the point-like interaction between fields – by considering only what he saw as measurable quantit ...
... The S-matrix program was originally developed by W. Heisenberg as an alternative to quantum field theory. His idea was to sidestep the problem of divergences in quantum field theory – in his view due to the point-like interaction between fields – by considering only what he saw as measurable quantit ...
Topological Quantum Computing
... 2.1 What is Quantum Computing? . . . . . . . . . . . . . . . . . . . . . . . 2.2 Quantum Error Correction . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... 2.1 What is Quantum Computing? . . . . . . . . . . . . . . . . . . . . . . . 2.2 Quantum Error Correction . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Quantum information theory: Results and open
... The last entry in each row gives the parity of the number of ’s if the three qubits are measured in the bases given by the first three entries of the row. Suppose there is a definite outcome assigned to each qubit for each of the two possible measurement bases. Since each basis appears for each qubi ...
... The last entry in each row gives the parity of the number of ’s if the three qubits are measured in the bases given by the first three entries of the row. Suppose there is a definite outcome assigned to each qubit for each of the two possible measurement bases. Since each basis appears for each qubi ...
Turing Machine
... Turing in 1936 in order to address Hilbert's Entscheidungsproblem. It is sufficiently simple so that various mathematical theorems can be proven about it. In particular by using this model Turing was able to show that the Entscheidungsproblem must be answered in negative, i.e., there is no mechanica ...
... Turing in 1936 in order to address Hilbert's Entscheidungsproblem. It is sufficiently simple so that various mathematical theorems can be proven about it. In particular by using this model Turing was able to show that the Entscheidungsproblem must be answered in negative, i.e., there is no mechanica ...
- Philsci
... problem. Then I clarify the nature of selective interactions, and more generally selections, and I go on to offer three arguments in their favour. First, selections provide the only known solution to the measurement problem that does not relinquish any of the explicit premises of the insolubility pr ...
... problem. Then I clarify the nature of selective interactions, and more generally selections, and I go on to offer three arguments in their favour. First, selections provide the only known solution to the measurement problem that does not relinquish any of the explicit premises of the insolubility pr ...
Review. Geometry and physics
... However, by this time, it had already been realized that atomic physics required an entirely new mathematical framework in the form of quantum mechanics, using radically new concepts, such as the linear superposition of states and the uncertainty principle, that no longer allowed the determination o ...
... However, by this time, it had already been realized that atomic physics required an entirely new mathematical framework in the form of quantum mechanics, using radically new concepts, such as the linear superposition of states and the uncertainty principle, that no longer allowed the determination o ...
Quantum Computation with Neutral Atoms
... Back to the real world: What do we need to build a quantum computer? ...
... Back to the real world: What do we need to build a quantum computer? ...
Fault-Tolerant Quantum Computation
... we need to store data in a quantum memory. A fault is a location in a circuit where a gate or storage error occurs and an error is a qubit in a block that deviates from the ideal state. ...
... we need to store data in a quantum memory. A fault is a location in a circuit where a gate or storage error occurs and an error is a qubit in a block that deviates from the ideal state. ...
Regular Structures
... • Generalizing this to a set of k spin- 1/2 particles we find that there are now 2 k basis states (quantum mechanical vectors that span a Hilbert space) corresponding say to the 2 k possible bitstrings of length k. • For example, |25> = |11001> = | | is one such state for k=5. • The dimensional ...
... • Generalizing this to a set of k spin- 1/2 particles we find that there are now 2 k basis states (quantum mechanical vectors that span a Hilbert space) corresponding say to the 2 k possible bitstrings of length k. • For example, |25> = |11001> = | | is one such state for k=5. • The dimensional ...
aps13-bohr - Caltech Particle Theory
... Bohr’s discussions with Schrödinger began at the railway station and continued daily from early morning until late at night. Schrödinger stayed at Bohr’s house so that nothing would interrupt the conversations … After a few days, Schrödinger fell ill, perhaps as a result of his enormous effort; in a ...
... Bohr’s discussions with Schrödinger began at the railway station and continued daily from early morning until late at night. Schrödinger stayed at Bohr’s house so that nothing would interrupt the conversations … After a few days, Schrödinger fell ill, perhaps as a result of his enormous effort; in a ...
The Spin Quantum Number
... Electrons only change orbits if specific amounts (quanta) of extra energy from the outside world are involved. Electrons that receive enough extra energy from the outside world can leave the atom they are in. Electrons that return to orbits they used to reside in give up the extra energy they acquir ...
... Electrons only change orbits if specific amounts (quanta) of extra energy from the outside world are involved. Electrons that receive enough extra energy from the outside world can leave the atom they are in. Electrons that return to orbits they used to reside in give up the extra energy they acquir ...
wave
... Schrödinger's famous tought experiment poses the question: when does a quantum system stop existing as a mixture of states and become one or the other? (More technically, when does the actual quantum state stop being a linear combination of states, each of which resemble different classical states, ...
... Schrödinger's famous tought experiment poses the question: when does a quantum system stop existing as a mixture of states and become one or the other? (More technically, when does the actual quantum state stop being a linear combination of states, each of which resemble different classical states, ...
Walter Eduard Thirring 1927-2014
... Walter Eduard Thirring quantum field theory, known as the Thirring model. That 1958 work, not Sinitiro Tomonaga’s paper as occasionally alleged, was the source for Joaquin Luttinger’s important model in condensedmatter physics and for ”bosonization.” Walter’s 1955 monograph on quantum electrodynamics ...
... Walter Eduard Thirring quantum field theory, known as the Thirring model. That 1958 work, not Sinitiro Tomonaga’s paper as occasionally alleged, was the source for Joaquin Luttinger’s important model in condensedmatter physics and for ”bosonization.” Walter’s 1955 monograph on quantum electrodynamics ...
Quantum Numbers and Orbitals
... • Recall: There are three p – orbitals and they are the px , py , and pz . • From the slide above we see that the magnetic quantum numbers for the p – orbitals are as ...
... • Recall: There are three p – orbitals and they are the px , py , and pz . • From the slide above we see that the magnetic quantum numbers for the p – orbitals are as ...
Yes, but. .. Some Skeptical Remarks on Realism and Anti
... How, then, is one to understand the position that theories are "mere instruments" - that they are "nothing but" instruments? First of all, instruments for what? One not infrequently receives, from physics students who have been indoctrinated with a crude version of positivism, the formulation - inte ...
... How, then, is one to understand the position that theories are "mere instruments" - that they are "nothing but" instruments? First of all, instruments for what? One not infrequently receives, from physics students who have been indoctrinated with a crude version of positivism, the formulation - inte ...