Results 111 to 120 of about 1,709,561 (207)

Quantum Correlation Based on Uhlmann Fidelity for Gaussian States

open access: yesEntropy, 2018
A quantum correlation N F G , A for ( n + m ) -mode continuous-variable systems is introduced in terms of local Gaussian unitary operations performed on Subsystem A based on Uhlmann fidelity F.
Liang Liu, Jinchuan Hou, Xiaofei Qi
doaj   +1 more source

Non‐Markovian Dynamics in Fiber Delay‐Line Buffers

open access: yesAdvanced Quantum Technologies, EarlyView.
A qubit‐fiber birefringence‐reservoir model is proposed to explore the non‐Markovian dynamics of the fiber‐based buffered photon and its paired photon. The non‐Markovian probability function is obtained by performing full quantum state tomography. The probability function fits well with experimental data and physical values.
Kim Fook Lee, Prem Kumar
wiley   +1 more source

Geometric quantum discord for two-qubit X-states [PDF]

open access: yesarXiv, 2017
Two-qubit X-state is a large class of quantum states which plays an important role in the quantification and dynamical study of quantum correlations. However, the corresponding quantification of quantum discord is still missing for bona fide discord measures, like original quantum discord, Bures distance of discord, and relative entropy of discord.
arxiv  

Epitaxy of Emerging Materials and Advanced Heterostructures for Microelectronics and Quantum Sciences

open access: yesSmall Methods, EarlyView.
Epitaxy is a key enabler of next‐generation nano/microelectronics and solid‐state quantum information systems. Demands on epitaxy of emerging materials including 2D materials and quantum materials are rapidly growing to realize various proposed applications.
Yeonjoo Lee   +3 more
wiley   +1 more source

Exact and efficient simulation of concordant computation

open access: yesNew Journal of Physics, 2015
Concordant computation is a circuit-based model of quantum computation for mixed states, that assumes that all correlations within the register are discord-free (i.e. the correlations are essentially classical) at every step of the computation.
Hugo Cable, Daniel E Browne
doaj   +1 more source

Creating quantum discord through local generalized amplitude damping [PDF]

open access: yesarXiv, 2011
We show that two qubits initially in completely classical state can create quantum discord through a local generalized amplitude damping channel, but high temperature will impede the creating of quantum discord.
arxiv  

Woodward and Hoffmann on Secondary Orbital Interactions. How to Make a Fine Two‐Course Meal from Leftovers**

open access: yesThe Chemical Record, EarlyView.
In February through April 1965, Hoffmann devised several MO tools to explain the regiochemistry of the Diels‐Alder and the preference of the Cope reaction to proceed by the chair rather than boat orientations, when both were possible. The secret lay in secondary orbital interactions that were revealed through qualitative perturbation theory.
Jeffrey I. Seeman
wiley   +1 more source

Quantum Discord: A Dynamic Approach in Geometric Picture [PDF]

open access: yesarXiv, 2011
We present a dynamic approach to study the quantum discord and classical correlation. By local filtering operation, the evaluation of quantum discord is closely related to quantum channel and channel capacity. As a consequence, the traditional optimization over horizontal-or-vertical von Neumann measurements is replaced by that over horizontal-and ...
arxiv  

Woodward and Hoffmann. Hoffmann and Woodward. A Close Collaboration Had Yet to Begin**

open access: yesThe Chemical Record, EarlyView.
Roald Hoffmann's laboratory notebooks and letters provide an inside glimpse into his relationship with R. B. Woodward and the history of the Woodward‐Hoffmann rules. Abstract In 1965, R. B. Woodward and Roald Hoffmann published five communications in the Journal of the American Chemical Society in which they outlined the mechanisms of ...
Jeffrey I. Seeman
wiley   +1 more source

Degeneracy removal of the left and right quantum discord in an inhomogeneous magnetic field

open access: yesIranian Journal of Physics Research, 2019
The effects of the inhomogeneous magnetic field on the quantum discord of the thermal state of a two-qubit isotropic Heisenberg system is investigated. The results show that the inhomogeneity of the magnetic field could remove the degeneracy of the left ...
T Makaremi, H R Mohammadi
doaj  

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