On Cayley graphs, surface codes, and the limits of homological
... Now, switching to the construction of the associated quantum code, we take the matrix H1 to be again the point-edge incidence matrix of the graph G, and the matrix H2 is now the set of characteristic vectors of the faces of G. Alternatively, H1 can be seen as the set of characteristic vectors of the ...
... Now, switching to the construction of the associated quantum code, we take the matrix H1 to be again the point-edge incidence matrix of the graph G, and the matrix H2 is now the set of characteristic vectors of the faces of G. Alternatively, H1 can be seen as the set of characteristic vectors of the ...
quantum effects in biology - Assets
... When the revolutionary conceptual structure for the description of the physical world which we know as quantum mechanics was first formulated nearly 90 years ago, and its predictions tested in the laboratory, most of the experiments in question were on systems which were both very well characterized ...
... When the revolutionary conceptual structure for the description of the physical world which we know as quantum mechanics was first formulated nearly 90 years ago, and its predictions tested in the laboratory, most of the experiments in question were on systems which were both very well characterized ...
Matematiska institutionen Department of Mathematics Covering the sphere with noncontextuality inequalities
... Only a few details have been mentioned here. Using the bra-ket notation, 1.1 can be rewritten as: ...
... Only a few details have been mentioned here. Using the bra-ket notation, 1.1 can be rewritten as: ...
A multiscale simulation environment for electronic and
... quantum mechanical treatment based on methods with atomistic resolution. The consideration of quantum-mechanical effects in the simulation of nanoscale devices is essential for a reliable description of structural, electronic and optical properties and particle transport. Several approaches for such ...
... quantum mechanical treatment based on methods with atomistic resolution. The consideration of quantum-mechanical effects in the simulation of nanoscale devices is essential for a reliable description of structural, electronic and optical properties and particle transport. Several approaches for such ...
Assessing the applicability of quantum corrections to classical
... behavior and material properties.1–3 As a general rule, MD simulations of solids are considered valid near and above a material’s Debye temperature, where all of the vibrational modes (i.e., phonons in a crystal) are fully excited. Molecular dynamics simulations are not valid at lower temperatures, ...
... behavior and material properties.1–3 As a general rule, MD simulations of solids are considered valid near and above a material’s Debye temperature, where all of the vibrational modes (i.e., phonons in a crystal) are fully excited. Molecular dynamics simulations are not valid at lower temperatures, ...
S - at www.arxiv.org.
... i e2e3 , j e1e3 (not e3e1 ), k e1e2 , see [2] Elements of incomplete form with 0 are, in terms of geometric algebra, bivectors, oriented areas belonging to some E2 E3 (“pure quaternions”). Remark 1.1: One can notice that bivectors cannot fully define coin physical state. The state is biv ...
... i e2e3 , j e1e3 (not e3e1 ), k e1e2 , see [2] Elements of incomplete form with 0 are, in terms of geometric algebra, bivectors, oriented areas belonging to some E2 E3 (“pure quaternions”). Remark 1.1: One can notice that bivectors cannot fully define coin physical state. The state is biv ...
Higher-order energy level spacing distributions in the transition
... Nevertheless, the semiclassical interpretation of q is still open. Localization effects of chaotic eigenfunctions and the value of the effective Planck constant (h̄eff ) can influence the Brody parameter (Prosen and Robnik 1994). Although equation (3) still lacks a physical derivation from first pri ...
... Nevertheless, the semiclassical interpretation of q is still open. Localization effects of chaotic eigenfunctions and the value of the effective Planck constant (h̄eff ) can influence the Brody parameter (Prosen and Robnik 1994). Although equation (3) still lacks a physical derivation from first pri ...
PDF
... states with an arbitrary degree of polarization entanglement can also be created with our setup by choosing the two pump pulses to have unequal powers. In order to actively monitor and control the relative phase p during the course of data taking, weak reference-pulse pairs of about 50 W average p ...
... states with an arbitrary degree of polarization entanglement can also be created with our setup by choosing the two pump pulses to have unequal powers. In order to actively monitor and control the relative phase p during the course of data taking, weak reference-pulse pairs of about 50 W average p ...
Tor Vergata
... How do we fill up states ? (Density matrix) The crucial point is to calculate the non-equilibrium density matrix when an external bias is applied to the molecular device Three possible solutions: 1. Ignore the variation of the density matrix (we keep H0) Suitable for situations very close to equili ...
... How do we fill up states ? (Density matrix) The crucial point is to calculate the non-equilibrium density matrix when an external bias is applied to the molecular device Three possible solutions: 1. Ignore the variation of the density matrix (we keep H0) Suitable for situations very close to equili ...
ABSTRACT ACCELERATION AND OBSERVER DEPENDENCE OF
... all points in spacetime are moving at different constant rates, with the exception of the center of the universe. An observer in this spacetime would expand outward, away from the central point of the universe, traveling with constant velocity. The observer’s speed is determined by their initial sta ...
... all points in spacetime are moving at different constant rates, with the exception of the center of the universe. An observer in this spacetime would expand outward, away from the central point of the universe, traveling with constant velocity. The observer’s speed is determined by their initial sta ...
While the ramifications of quantum computers
... widespread and portable, and possibly even a consumer item like personal computers are today. If the pessimistic hypothesis is true, quantum computers will be severely limited, and have relatively limited uses (or won’t even be developed enough for any uses). Kalai extends on the ramifications of bo ...
... widespread and portable, and possibly even a consumer item like personal computers are today. If the pessimistic hypothesis is true, quantum computers will be severely limited, and have relatively limited uses (or won’t even be developed enough for any uses). Kalai extends on the ramifications of bo ...
Introduction to Quantum Computing (2010) (e-book)
... allowed in classical system (for example, factoring large numbers, or achieving dimensional sizes of physical devices that are comparable to quantum dimensions, such as the atoms), as well as the achievement of a new level of security of the information. KSV’s book, [KSV02], address to this question ...
... allowed in classical system (for example, factoring large numbers, or achieving dimensional sizes of physical devices that are comparable to quantum dimensions, such as the atoms), as well as the achievement of a new level of security of the information. KSV’s book, [KSV02], address to this question ...
Photon pairs with coherence time exceeding 1 μs
... (not shown in Fig. 1) are switched off and all the atoms are optically pumped to the ground level j1i. During the biphoton generation time, phase-matched Stokes (ωs ) and anti-Stokes (ωas ) paired photons are produced in opposing directions along the MOT longitudinal z axis in the presence of the co ...
... (not shown in Fig. 1) are switched off and all the atoms are optically pumped to the ground level j1i. During the biphoton generation time, phase-matched Stokes (ωs ) and anti-Stokes (ωas ) paired photons are produced in opposing directions along the MOT longitudinal z axis in the presence of the co ...
Connecting processing-capable quantum memories over telecommunication links via quantum frequency conversion
... into an output of a different frequency while its quantum state is preserved. It is this state-preserving feature of SFG and DFG that enables the QFC operation. To build QFC devices compatible with the quantummemory devices described in sections 3 and 4, we consider the use of planar PPLN waveguides ...
... into an output of a different frequency while its quantum state is preserved. It is this state-preserving feature of SFG and DFG that enables the QFC operation. To build QFC devices compatible with the quantummemory devices described in sections 3 and 4, we consider the use of planar PPLN waveguides ...
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... Research Institute for Solid State Physics and Optics, PO Box 49, 1525 Budapest, Hungary Institute for Theoretical Physics, Szeged University, 6720 Szeged, Hungary Received 6 December 2000 and Received in final form 22 January 2001 Abstract. We study the critical behavior of Ising quantum magnets wi ...
... Research Institute for Solid State Physics and Optics, PO Box 49, 1525 Budapest, Hungary Institute for Theoretical Physics, Szeged University, 6720 Szeged, Hungary Received 6 December 2000 and Received in final form 22 January 2001 Abstract. We study the critical behavior of Ising quantum magnets wi ...