Unified and Generalized Approach to Quantum Error Correction David Kribs, Raymond Laflamme,
... where PC is the projector of H onto C. As a prelude to what follows below, let us note that instead of focusing on the subspace C, we could just as easily work with the set of operators BC which act on C. When there exists such an R for a given pair E; C, the subspace C is said to be correctable f ...
... where PC is the projector of H onto C. As a prelude to what follows below, let us note that instead of focusing on the subspace C, we could just as easily work with the set of operators BC which act on C. When there exists such an R for a given pair E; C, the subspace C is said to be correctable f ...
INTRODUCTION TO NOISE AND DENSITY MATRICES. Slides in PPT.
... What we’re going to do in this lecture, and why we’re doing it Most of the lecture will be spent understanding the density matrix. Unfortunately, that means we’ve got to master a rather complex formalism. It might seem a little strange, since the density matrix is never essential for calculations – ...
... What we’re going to do in this lecture, and why we’re doing it Most of the lecture will be spent understanding the density matrix. Unfortunately, that means we’ve got to master a rather complex formalism. It might seem a little strange, since the density matrix is never essential for calculations – ...
量子力學發展史
... of a particle is made with uncertainty Dx and a simultaneous measurement of its x component of momentum is made with uncertainty Dp, the product of the two uncertainties can never be smaller than ...
... of a particle is made with uncertainty Dx and a simultaneous measurement of its x component of momentum is made with uncertainty Dp, the product of the two uncertainties can never be smaller than ...
Quantum Computing With Closed Timelike Curves
... (1) CTCs exist, so now we know exactly what can be computed in the physical world (PSPACE)! (2) CTCs don’t exist, and this sort of result helps pinpoint what’s so ridiculous about them (3) CTCs don’t exist, and we already knew they were ridiculous—but at least we can find fixed points of superoperat ...
... (1) CTCs exist, so now we know exactly what can be computed in the physical world (PSPACE)! (2) CTCs don’t exist, and this sort of result helps pinpoint what’s so ridiculous about them (3) CTCs don’t exist, and we already knew they were ridiculous—but at least we can find fixed points of superoperat ...
Spin Hall Effect in Cold Atomic Systems
... ¾ Spin Hall effect can be demonstrated in atomic system through optical methods, where the created spin current is conserved and may be able to exhibit topological properties. ¾ Spin Hall effect in cold bosonic atomic gas has very different significance from that in cold fermionic atomic system. In ...
... ¾ Spin Hall effect can be demonstrated in atomic system through optical methods, where the created spin current is conserved and may be able to exhibit topological properties. ¾ Spin Hall effect in cold bosonic atomic gas has very different significance from that in cold fermionic atomic system. In ...
Document
... Universal resource count A functional definition of resource used in a measurement: For a classical, quantum (linear or non-linear model) resource used is equal to the number of possible outcomes the model predicts (-1). ...
... Universal resource count A functional definition of resource used in a measurement: For a classical, quantum (linear or non-linear model) resource used is equal to the number of possible outcomes the model predicts (-1). ...
QUANTUM ERROR CORRECTING CODES FROM THE
... quantum error correction (QEC) [1–4] depends upon the existence and identification of states and operators on which the error operators are jointly well-behaved in a precise sense. The stabilizer formalism for QEC [5, 6] gives a constructive framework to find correctable codes for error models of “P ...
... quantum error correction (QEC) [1–4] depends upon the existence and identification of states and operators on which the error operators are jointly well-behaved in a precise sense. The stabilizer formalism for QEC [5, 6] gives a constructive framework to find correctable codes for error models of “P ...
Proposal for Manipulating and Detecting Spin and Orbital States of... on Helium Using Cavity Quantum Electrodynamics
... has not been accessible until now. An electron near the surface of liquid helium experiences a potential due to the induced image charge of the form V ¼ =z, with ¼ e2 ð 1Þ=4ð þ 1Þ and 1:057. Together with the 1 eV barrier for penetration into the liquid, the image potential results in a ...
... has not been accessible until now. An electron near the surface of liquid helium experiences a potential due to the induced image charge of the form V ¼ =z, with ¼ e2 ð 1Þ=4ð þ 1Þ and 1:057. Together with the 1 eV barrier for penetration into the liquid, the image potential results in a ...
