
Physical justification for using the tensor product to describe two
... Let us consider a system S, described by the complete, orthocomplemented, weakly modular lattice L of its yes-no experiments. The next step in the study of the system is to investigate which yes-no experiments are true at a certain moment. These are indeed the properties which are elements of realit ...
... Let us consider a system S, described by the complete, orthocomplemented, weakly modular lattice L of its yes-no experiments. The next step in the study of the system is to investigate which yes-no experiments are true at a certain moment. These are indeed the properties which are elements of realit ...
Highly doubly excited S states of the helium atom
... number of the HeC ion to which the Rydberg series converges). By solving (8) we get a large number of converged complex eigenvalues that represent the doubly excited resonances. 2.2. Numerical computation of resonances The actual computation of the eigenvalues of (8) is performed in two steps. In a ...
... number of the HeC ion to which the Rydberg series converges). By solving (8) we get a large number of converged complex eigenvalues that represent the doubly excited resonances. 2.2. Numerical computation of resonances The actual computation of the eigenvalues of (8) is performed in two steps. In a ...
Quantum measurements of coupled systems * L. Fedichkin, M. Shapiro,
... The problem of measuring coupled qubits is related to the problem of localization. Localization of single-excitation stationary states is well understood since Anderson’s work 关4兴 on disordered systems where qubit excitation energies 共site energies兲 n are random. Anderson localization requires that ...
... The problem of measuring coupled qubits is related to the problem of localization. Localization of single-excitation stationary states is well understood since Anderson’s work 关4兴 on disordered systems where qubit excitation energies 共site energies兲 n are random. Anderson localization requires that ...
Direct and Indirect Couplings in Coherent
... exchanges quantum information with the quantum plant in the feedback loop. Such quantum information may flow directionally as a (possibly non-commutative) signal like a quantized electromagnetic field or an injected laser [51], [54], or directly via a bidirectional physical coupling [45], [24]. Full ...
... exchanges quantum information with the quantum plant in the feedback loop. Such quantum information may flow directionally as a (possibly non-commutative) signal like a quantized electromagnetic field or an injected laser [51], [54], or directly via a bidirectional physical coupling [45], [24]. Full ...
A purification postulate for quantum mechanics with indefinite causal
... These processes have been shown to enable the realization of tasks that are otherwise impossible: they allow for the violation of causal inequalities [1, 3–8], can be detected by causal witnesses [9], provide an advantage in quantum computation [10–12], and enable a reduction in communication comple ...
... These processes have been shown to enable the realization of tasks that are otherwise impossible: they allow for the violation of causal inequalities [1, 3–8], can be detected by causal witnesses [9], provide an advantage in quantum computation [10–12], and enable a reduction in communication comple ...
Two Qubits for CG Jung`s Theory of Personality
... about themselves. Socionics rejects the use of such questionnaires and is based on interviews and direct observation of certain aspects of human behavior instead. However, if personality tests are well constructed and their questions are answered properly, we will expect results that often make sens ...
... about themselves. Socionics rejects the use of such questionnaires and is based on interviews and direct observation of certain aspects of human behavior instead. However, if personality tests are well constructed and their questions are answered properly, we will expect results that often make sens ...
An Introduction to Quantum Spin Systems Notes for MA5020 (John
... and the AKLT chain [58]. The latter is easily understood since the exact ground state of the AKLT chain is a fixed point of the DMRG iteration [48]. By now we also understand why the DMRG method works well for one-dimensional problems more generally, especially for models with a non-vanishing gap, a ...
... and the AKLT chain [58]. The latter is easily understood since the exact ground state of the AKLT chain is a fixed point of the DMRG iteration [48]. By now we also understand why the DMRG method works well for one-dimensional problems more generally, especially for models with a non-vanishing gap, a ...
`universal` phase for electron transmission in quantum dots
... CB conditions. The measured phase in different occupation regimes was then patched together in order to obtain a continuous phase evolution over a wide range of electron occupation. We present in Figs 4–6 examples of phase and amplitude of the coherent part of the transmission coefficient for an inc ...
... CB conditions. The measured phase in different occupation regimes was then patched together in order to obtain a continuous phase evolution over a wide range of electron occupation. We present in Figs 4–6 examples of phase and amplitude of the coherent part of the transmission coefficient for an inc ...
PDF (Author Accepted Manuscript) - CLoK
... Newtonian theory. All the considerations made in Refs. [13–15], in fact, are characterized by the fact that the classical theory for which quantum corrections are computed is the Newtonian theory, instead of Einstein’s one. But, if general relativity is the most successful classical theory of gravit ...
... Newtonian theory. All the considerations made in Refs. [13–15], in fact, are characterized by the fact that the classical theory for which quantum corrections are computed is the Newtonian theory, instead of Einstein’s one. But, if general relativity is the most successful classical theory of gravit ...
The classical and quantum Fourier transform
... will be an n-qubit unitary. Notice carefully that this quantum operation does something different from the classical Fourier transform: in the classical case we are given a vector v, written on a piece of paper so to say, and we compute the vector vb = FN v, and also write the result on a piece of p ...
... will be an n-qubit unitary. Notice carefully that this quantum operation does something different from the classical Fourier transform: in the classical case we are given a vector v, written on a piece of paper so to say, and we compute the vector vb = FN v, and also write the result on a piece of p ...
Causal Sets: Discrete Gravity (Notes for the Valdivia Summer School)
... y is timelike or lightlike and future-pointing). Later, Reichenbach [10] from the side of philosophy and Zeeman [11] from the side of mathematics emphasized the same fact, the latter in particular by proving the theorem, implicit in [9], that any order-isomorphism of M4 onto itself must — up to an o ...
... y is timelike or lightlike and future-pointing). Later, Reichenbach [10] from the side of philosophy and Zeeman [11] from the side of mathematics emphasized the same fact, the latter in particular by proving the theorem, implicit in [9], that any order-isomorphism of M4 onto itself must — up to an o ...
quantum computation of the jones polynomial - Unicam
... change under isotopes. Such invariants are important tools for the classification of knots, since they allow to distinguish knots that are not isotopic. The Jones polynomial is one of the most important knot invariants. The definition of it, given by Vaughan Jones in 1984, is based on the realizatio ...
... change under isotopes. Such invariants are important tools for the classification of knots, since they allow to distinguish knots that are not isotopic. The Jones polynomial is one of the most important knot invariants. The definition of it, given by Vaughan Jones in 1984, is based on the realizatio ...
Quantum stress in chaotic billiards Linköping University Postprint
... for T␣共x , y兲 is quite satisfactory for small net currents. However, a distinct difference between experiments and theory is observed at higher net flow, which could be explained using a Gaussian random field, where the net current was taken into account by an additional plane wave with a preferent ...
... for T␣共x , y兲 is quite satisfactory for small net currents. However, a distinct difference between experiments and theory is observed at higher net flow, which could be explained using a Gaussian random field, where the net current was taken into account by an additional plane wave with a preferent ...
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.