Effects of defects in the XY chain with frustrated boundary conditions

Gianpaolo Torre; Vanja Marić; Fabio Franchini; Salvatore Marco Giampaolo

doi:10.1103/physrevb.103.014429

Effects of defects in the XY chain with frustrated boundary conditions

Physical Review B ◽

10.1103/physrevb.103.014429 ◽

2021 ◽

Vol 103 (1) ◽

Author(s):

Gianpaolo Torre ◽

Vanja Marić ◽

Fabio Franchini ◽

Salvatore Marco Giampaolo

Keyword(s):

Boundary Conditions ◽

Xy Chain

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Quantum information transmission through a qubit chain with quasi-local dissipation

Quantum Information and Computation ◽

10.26421/qic18.3-4-4 ◽

2018 ◽

Vol 18 (3&4) ◽

pp. 231-246

Author(s):

Roya Radgohar ◽

Laleh Memarzadeh ◽

Stefano Mancini

Keyword(s):

Quantum Information ◽

Boundary Conditions ◽

Information Transmission ◽

Interaction Strength ◽

Local Environment ◽

Open Boundary ◽

Open Boundary Conditions ◽

Quantum State Transfer ◽

State Transfer ◽

Xy Chain

We study quantum information transmission in a Heisenberg-XY chain where qubits are affected by quasi-local environment action and compare it with the case of local action of the environment. We find that for open boundary conditions the former situation always improves quantum state transfer process, especially for short chains. In contrast, for closed boundary conditions quasi-local environment results advantageous in the strong noise regime. When the noise strength is comparable with the XY interaction strength, the state transfer fidelity through chain of odd/even number of qubits in presence of quasi-local environment results smaller/greater than that in presence of local environment.

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The one-dimensional dimerised spin-1/2 XY chain with arbitrary boundary conditions and related unitary and non-unitary models

Journal of Physics A General Physics ◽

10.1088/0305-4470/22/1/020 ◽

1989 ◽

Vol 22 (1) ◽

pp. 135-138

Author(s):

G Spronken ◽

M Avignon

Keyword(s):

Boundary Conditions ◽

Arbitrary Boundary ◽

One Dimensional ◽

Arbitrary Boundary Conditions ◽

Xy Chain ◽

The One

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Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100068795 ◽

1970 ◽

Vol 28 ◽

pp. 360-361

Author(s):

John W. Coleman

Keyword(s):

Boundary Conditions ◽

High Performance ◽

Force Fields ◽

Optical Design ◽

Direct Conversion ◽

Design Engineering ◽

Design Data ◽

Scalar Potentials ◽

Geometric Elements ◽

At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

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