Periodic boundary physics etc
... In physics, specifically quantum mechanics, the Schrödinger equation is an equation that describes how the quantum state of a physical system changes in time. It is as central to quantum mechanics as Newton's laws are to classical mechanics. In the standard interpretation of quantum mechanics, the q ...
... In physics, specifically quantum mechanics, the Schrödinger equation is an equation that describes how the quantum state of a physical system changes in time. It is as central to quantum mechanics as Newton's laws are to classical mechanics. In the standard interpretation of quantum mechanics, the q ...
Toiling in Feynman`s Shadow: Quantum
... a solution to a problem, then is there also a fast computer program to FIND a solution?” –One of seven Clay Millennium Problems ...
... a solution to a problem, then is there also a fast computer program to FIND a solution?” –One of seven Clay Millennium Problems ...
SCHRÖDINGER EQUATION FOR A PARTICLE ON A CURVED SPACE AND SUPERINTEGRABILITY
... First of all, the canonical momenta do not in general coincide with the Noether momenta. Secondly, the Noether momenta do not Poisson commute classically, so the corresponding self-adjoint quantum operators do not commute. A planewave is more of a Euclidean concept, and its meaning needs to be clari ...
... First of all, the canonical momenta do not in general coincide with the Noether momenta. Secondly, the Noether momenta do not Poisson commute classically, so the corresponding self-adjoint quantum operators do not commute. A planewave is more of a Euclidean concept, and its meaning needs to be clari ...
A quantum point contact for ultra cold Fermions
... constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degenerate fermionic lithium atoms. By tuning either a gate potential or the transverse confinements of the constrictions, we observe distinct plateaus in the conductance for matt ...
... constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degenerate fermionic lithium atoms. By tuning either a gate potential or the transverse confinements of the constrictions, we observe distinct plateaus in the conductance for matt ...
Winterschool Obergurgl 2017
... theoretical models and in emerging experimental settings. The goal of this interdisciplinary school is to foster interaction between these communities. The school is aimed at PhD students and Postdocs who work in classical networks, quantum physics, quantum communication and quantum information; ...
... theoretical models and in emerging experimental settings. The goal of this interdisciplinary school is to foster interaction between these communities. The school is aimed at PhD students and Postdocs who work in classical networks, quantum physics, quantum communication and quantum information; ...
The Future of Computer Science
... Factoring is in BQP, but not believed to be NP-complete! Today, we don’t believe quantum computers can solve NP-complete problems in polynomial time in general (though not surprisingly, we can’t prove it) Bennett et al. 1997: “Quantum magic” won’t be enough If you throw away the problem structure, ...
... Factoring is in BQP, but not believed to be NP-complete! Today, we don’t believe quantum computers can solve NP-complete problems in polynomial time in general (though not surprisingly, we can’t prove it) Bennett et al. 1997: “Quantum magic” won’t be enough If you throw away the problem structure, ...
There are 4 quantum numbers. - 12S7F-note
... The principle quantum number [n] refers to the electron shell that the electron exists in. The angular momentum number [l] is the orbital of the electron i.e. the s-orbital is represented by 0, the p-orbital by 1, the d-orbital by 2 and so on. The magnetic quantum number [ml] is the sub-orbital or c ...
... The principle quantum number [n] refers to the electron shell that the electron exists in. The angular momentum number [l] is the orbital of the electron i.e. the s-orbital is represented by 0, the p-orbital by 1, the d-orbital by 2 and so on. The magnetic quantum number [ml] is the sub-orbital or c ...
Quantum Computing
... Even a quantum computers couldn’t solve all problems in an instant (though they’d provide amazing speedups for a few problems, like factoring and quantum simulation, and maybe broader speedups) ...
... Even a quantum computers couldn’t solve all problems in an instant (though they’d provide amazing speedups for a few problems, like factoring and quantum simulation, and maybe broader speedups) ...
Abstracts
... thermal component as the driving mechanism for condensation [1]. We show that under usual experimental conditions ultracold atomic gases actually show strong deviation from Einstein's saturation picture, but saturation is recovered in the limit of vanishing interactions. Second, we experimentally ob ...
... thermal component as the driving mechanism for condensation [1]. We show that under usual experimental conditions ultracold atomic gases actually show strong deviation from Einstein's saturation picture, but saturation is recovered in the limit of vanishing interactions. Second, we experimentally ob ...
Slide 1 - s3.amazonaws.com
... theory. They questioned why the energies of hydrogen electron are quantized, or, why is the electron in a Bohr atom restricted or orbiting the nucleus at certain fixed distance? For a decade there is no logical explanation. In 1924, Louis de Broglie provided the solution for this puzzle. If light wa ...
... theory. They questioned why the energies of hydrogen electron are quantized, or, why is the electron in a Bohr atom restricted or orbiting the nucleus at certain fixed distance? For a decade there is no logical explanation. In 1924, Louis de Broglie provided the solution for this puzzle. If light wa ...
David Williams (University of Cambridge)
... David Williams (University of Cambridge) Semiconductor Structures for Quantum Information Processing A number of new ways of manipulating information, generically known as quantum information processing, have been postulated in the last 15-20 years. Several have been demonstrated experimentally, but ...
... David Williams (University of Cambridge) Semiconductor Structures for Quantum Information Processing A number of new ways of manipulating information, generically known as quantum information processing, have been postulated in the last 15-20 years. Several have been demonstrated experimentally, but ...
Quantum computing
Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.