Simulating Charge Stability Diagrams for Double and Triple
... electron’s spin state–where down and up, or horizontal and vertical correspond to 0 and 1 in terms of binary. The difference, between a qubit and a classical bit is the qubit’s ability to be in both 0 and 1 simultaneously–a superposition of up and down for the example of the electron’s spin. It is t ...
... electron’s spin state–where down and up, or horizontal and vertical correspond to 0 and 1 in terms of binary. The difference, between a qubit and a classical bit is the qubit’s ability to be in both 0 and 1 simultaneously–a superposition of up and down for the example of the electron’s spin. It is t ...
Towards a Tight Finite Key Analysis for BB84
... Uncertainty as Shannon Entropy The Shannon entropy of a random variable X , H(X ), is a functional of the probability distribution over outcomes, Pr[X = x], and not the outcomes themselves. H(X ) := ...
... Uncertainty as Shannon Entropy The Shannon entropy of a random variable X , H(X ), is a functional of the probability distribution over outcomes, Pr[X = x], and not the outcomes themselves. H(X ) := ...
Phase diffusion pattern in quantum nondemolition systems
... As stated above, in the context of energy-preserving QND systems, the only effect of the environment on the system is dephasing and it is a natural question to ask about the pattern of diffusion of ‘phases’ in such a situation. Such a question is particularly relevant in the context of a number of p ...
... As stated above, in the context of energy-preserving QND systems, the only effect of the environment on the system is dephasing and it is a natural question to ask about the pattern of diffusion of ‘phases’ in such a situation. Such a question is particularly relevant in the context of a number of p ...
Interface between path and orbital angular momentum
... the pair passing the three slits, hence the pair is entangled in the path. (b) A lens transforms the path entanglement to a transverse momentum entanglement, which is then transformed by the reversed mode sorter (black tube) to the OAM degree of freedom. (c) The OAM-entangled pair of photons is spli ...
... the pair passing the three slits, hence the pair is entangled in the path. (b) A lens transforms the path entanglement to a transverse momentum entanglement, which is then transformed by the reversed mode sorter (black tube) to the OAM degree of freedom. (c) The OAM-entangled pair of photons is spli ...
M00.pdf
... and for very large kick strength strong chaos reigns throughout phase space. This brings us to another motivation of this paper: in this yet one-dimensional problem lies a wealth of very interesting classical and quantum phenomena, which, moreover, occur in many-dimensional 共continuous-time兲 molecul ...
... and for very large kick strength strong chaos reigns throughout phase space. This brings us to another motivation of this paper: in this yet one-dimensional problem lies a wealth of very interesting classical and quantum phenomena, which, moreover, occur in many-dimensional 共continuous-time兲 molecul ...
Quantum Mechanics as Quantum Information
... from the chaff. If the quantum state represents subjective information, then how much of its mathematical support structure might be of that same character? Some of it, maybe most of it, but surely not all of it. Our foremost task should be to go to each and every axiom of quantum theory and give i ...
... from the chaff. If the quantum state represents subjective information, then how much of its mathematical support structure might be of that same character? Some of it, maybe most of it, but surely not all of it. Our foremost task should be to go to each and every axiom of quantum theory and give i ...
The Parallel Development of Matrix and Wave Mechanics
... mechanics, avoiding later discussions and additions in the further development of a formalization of quantum theory. In the development of matrix mechanics Heisenbergs first article, Über der quantentheoretische Umdeuting kinematischer und mechanischer Beziehungen (1925), is the only one which is s ...
... mechanics, avoiding later discussions and additions in the further development of a formalization of quantum theory. In the development of matrix mechanics Heisenbergs first article, Über der quantentheoretische Umdeuting kinematischer und mechanischer Beziehungen (1925), is the only one which is s ...
Consequences of postselection - Conference in honor of John
... 2. For approx green CTCs, if enough are used together, they’re not green at all. If few are allowed, they can be well approximated by regular QM. NB: very easy to show the above since we can use the Kraus decomposition and linearity. ...
... 2. For approx green CTCs, if enough are used together, they’re not green at all. If few are allowed, they can be well approximated by regular QM. NB: very easy to show the above since we can use the Kraus decomposition and linearity. ...
Dynamical Aspects of Information Storage in Quantum
... In this respect, the assumption of finite precision of all physically realizable state preparation, manipulation, and registration procedures is particularly important, and can even be treated as an empirical given. This premise is general enough to subsume (a) fundamental limitations imposed by the ...
... In this respect, the assumption of finite precision of all physically realizable state preparation, manipulation, and registration procedures is particularly important, and can even be treated as an empirical given. This premise is general enough to subsume (a) fundamental limitations imposed by the ...
Imaging electrostatically confined Dirac fermions in graphene
... but reflects them at larger angles of incidence1,4,5 . In a potential well with circular symmetry, electrons with high angular momenta are obliquely incident on the barrier and are internally reflected, thus leading to particle confinement and the formation of quasibound quantum dot states7–12 . As ...
... but reflects them at larger angles of incidence1,4,5 . In a potential well with circular symmetry, electrons with high angular momenta are obliquely incident on the barrier and are internally reflected, thus leading to particle confinement and the formation of quasibound quantum dot states7–12 . As ...
Department of Physics, Chemistry and Biology Master’s Thesis
... In our efforts to solve this quantum problem, we develop a Mathematica routine that implements the Number State Method and solves the corresponding Schrödinger equation. We calculate analytically and numerically the energy spectrum of the Dimer and Trimer systems. Those eigenenergies depend on the p ...
... In our efforts to solve this quantum problem, we develop a Mathematica routine that implements the Number State Method and solves the corresponding Schrödinger equation. We calculate analytically and numerically the energy spectrum of the Dimer and Trimer systems. Those eigenenergies depend on the p ...
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.