Circuit QED: Superconducting Qubits Coupled to Microwave Photons
... A quantum machine is a device whose degrees of freedom are intrinsically quantum mechanical. Of course, every machine is made of atoms and its microscopic degrees of freedom (the electrons and nuclei) are intrinsically quantum. Atomic physicists have developed remarkable optical techniques to contro ...
... A quantum machine is a device whose degrees of freedom are intrinsically quantum mechanical. Of course, every machine is made of atoms and its microscopic degrees of freedom (the electrons and nuclei) are intrinsically quantum. Atomic physicists have developed remarkable optical techniques to contro ...
Cosmological constant and vacuum energy
... average. In particular, this means that λ = 0 if matter in the Universe is so inhomogeneously distributed that its average over big volumes V tends to zero. In this treatment, λ resembles a Lagrange multiplier or an integration constant, rather than the fundamental constant (see general discussion i ...
... average. In particular, this means that λ = 0 if matter in the Universe is so inhomogeneously distributed that its average over big volumes V tends to zero. In this treatment, λ resembles a Lagrange multiplier or an integration constant, rather than the fundamental constant (see general discussion i ...
Quantum Computing
... He also pioneered the use of operator theory, including the influential bra-ket notation. John von Neumann formulated the mathematical basis for quantum mechanics as the theory of linear operators on Hilbert spaces John von Neumann ...
... He also pioneered the use of operator theory, including the influential bra-ket notation. John von Neumann formulated the mathematical basis for quantum mechanics as the theory of linear operators on Hilbert spaces John von Neumann ...
Projective Measurements
... • Remark: Orthogonal states can always be distinguished via constructing appropriate measurement operators (projectors). This is another explanation why orthogonal (classical) states can be copied as was stated in Section 2.7 because in possession of the exact information about such states we can bu ...
... • Remark: Orthogonal states can always be distinguished via constructing appropriate measurement operators (projectors). This is another explanation why orthogonal (classical) states can be copied as was stated in Section 2.7 because in possession of the exact information about such states we can bu ...
Machine invention of quantum computing circuits by means
... The genetic programming system used in the work reported here is PushGP (Spector, 2001, 2004; Spector & Robinson, 2002; Spector et al., 2005). PushGP differs from most other genetic programming systems in that it uses the Push programming language as the formalism within which evolving programs are ...
... The genetic programming system used in the work reported here is PushGP (Spector, 2001, 2004; Spector & Robinson, 2002; Spector et al., 2005). PushGP differs from most other genetic programming systems in that it uses the Push programming language as the formalism within which evolving programs are ...
Unconditionally Secure Quantum Signatures
... Non-orthogonal quantum states cannot be perfectly distinguished from each other, nor perfectly copied, and the precision of both preparation and measurement of quantum states is limited by uncertainty relations. Such counter-intuitive properties might at first seem to pose limits on practical ...
... Non-orthogonal quantum states cannot be perfectly distinguished from each other, nor perfectly copied, and the precision of both preparation and measurement of quantum states is limited by uncertainty relations. Such counter-intuitive properties might at first seem to pose limits on practical ...
talk
... (1) Niels Bohr: quantum mechanics is a „complete theory“. An entangled wave function may be infinitely long (2) Albert Einstein: the „spukhafte Fernwirkung“ is absurd. Quantum mechanics is an incomplete theory. There must exist a more fundamental local theory Theoretical arguments alone cannot settl ...
... (1) Niels Bohr: quantum mechanics is a „complete theory“. An entangled wave function may be infinitely long (2) Albert Einstein: the „spukhafte Fernwirkung“ is absurd. Quantum mechanics is an incomplete theory. There must exist a more fundamental local theory Theoretical arguments alone cannot settl ...
An introduction to Quantum Complexity
... • In this model, input is not a bit-string but a ''black box'' computing some function f : {0, 1}n → {0, 1} which returns f ( x) when x is passed in. • put it in quantum words: we have access to a unitary oracle U f : | x ⟩|y⟩ → | x ⟩|y ⊕ f ( x )⟩ where f ( x ) ∈ {0, 1} y is the target bit • one cal ...
... • In this model, input is not a bit-string but a ''black box'' computing some function f : {0, 1}n → {0, 1} which returns f ( x) when x is passed in. • put it in quantum words: we have access to a unitary oracle U f : | x ⟩|y⟩ → | x ⟩|y ⊕ f ( x )⟩ where f ( x ) ∈ {0, 1} y is the target bit • one cal ...
Baryons in O (4) and Vibron Model
... M 12 = MN + m1 , respectively. The ∆ spectrum (I = 23 ) is best fitted by the smaller m2 value of m2 = 40 MeV and M 32 = M∆ + m1 (right Fig. 2 ). It is the goal of this paper to develop a constituent model for baryons that explains the observed clustering in the spectra of the light unflavored baryo ...
... M 12 = MN + m1 , respectively. The ∆ spectrum (I = 23 ) is best fitted by the smaller m2 value of m2 = 40 MeV and M 32 = M∆ + m1 (right Fig. 2 ). It is the goal of this paper to develop a constituent model for baryons that explains the observed clustering in the spectra of the light unflavored baryo ...
Classical-quantum correspondence and the
... Study of the “classical-quantum correspondence” covers a wide range of topics, as exemplified by the articles in this Volume. One can, for example, compare directly the results of quasiclassical trajectory calculations and quantum scattering calculations of suitably averaged vibrational energy transf ...
... Study of the “classical-quantum correspondence” covers a wide range of topics, as exemplified by the articles in this Volume. One can, for example, compare directly the results of quasiclassical trajectory calculations and quantum scattering calculations of suitably averaged vibrational energy transf ...
Gravitational, rotational and topological quantum phase shifts in
... 1. Introduction to quantum phase shifts of matter waves A thermal neutron having a de Broglie wavelength of 2 A, has a kinetic energy of about 20 meV and moves with a velocity of 2000 ms-'. This curious dual nature of neutrons, sometimes a particle, sometimes a wave, is wonderfully manifested in the ...
... 1. Introduction to quantum phase shifts of matter waves A thermal neutron having a de Broglie wavelength of 2 A, has a kinetic energy of about 20 meV and moves with a velocity of 2000 ms-'. This curious dual nature of neutrons, sometimes a particle, sometimes a wave, is wonderfully manifested in the ...
full text
... Monodromy prevents defining the global second quantum number for the entire lattice of quantum states of the spherical pendulum system. Using the elementary cell continuation method in Sec. I C. we can of course define smooth sequences of states, but we will fail when we try to extend them to the wh ...
... Monodromy prevents defining the global second quantum number for the entire lattice of quantum states of the spherical pendulum system. Using the elementary cell continuation method in Sec. I C. we can of course define smooth sequences of states, but we will fail when we try to extend them to the wh ...
![arXiv:1705.06742v1 [cond-mat.quant-gas] 18](http://s1.studyres.com/store/data/015536624_1-695304017ec91e58c90e68ba3242255c-300x300.png)
arXiv:1705.06742v1 [cond-mat.quant-gas] 18
... liquid will become gapped out leading to a bosonic Mott insulating phase. In this strong coupling limit, the appropriate degrees of freedom are local moments, governed by an effective Hamiltonian describing the limit of large U0 /t only, that we now proceed to derive. In the Mott limit of commensura ...
... liquid will become gapped out leading to a bosonic Mott insulating phase. In this strong coupling limit, the appropriate degrees of freedom are local moments, governed by an effective Hamiltonian describing the limit of large U0 /t only, that we now proceed to derive. In the Mott limit of commensura ...
Subnormalized states and trace
... respect to the Euclidean 共HS兲 measure and characterize its extremal points. The TNI maps have a realistic physical motivation, since they describe an experiment for which with a certain probability the apparatus does not work. This could be an interpretation of the “zero map” after action of which n ...
... respect to the Euclidean 共HS兲 measure and characterize its extremal points. The TNI maps have a realistic physical motivation, since they describe an experiment for which with a certain probability the apparatus does not work. This could be an interpretation of the “zero map” after action of which n ...
