Dependence of noise induced effects on state preparation in multiqubit systems |
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Authors: | Athanasios C Tzemos Demetris PK Ghikas |
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Institution: | Department of Physics, University of Patras, Patras, 26500, Greece |
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Abstract: | The perturbation of multiqubit systems by an external noise can induce various effects like decoherence, stochastic resonance and anti-resonance, and noise-shielding. We investigate how the appearance of these effects on disentanglement time depends on the initial preparation of the systems. We present results for 2-, 3- and 4-qubit chains in various arrangements and observe a clear dependence on the combination of initial geometry of the state space and the placement of noise. Finally, we see that temperature can play a constructive role for the control of these noise induced effects. |
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Keywords: | Entanglement Decoherence XY model Noise effects |
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