alexa Experimental inhibition of decoherence on flying qubits via "bang-bang" control.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Computer Science & Systems Biology

Author(s): Damodarakurup S, Lucamarini M, Di Giuseppe G, Vitali D, Tombesi P

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Abstract Decoherence may significantly affect the polarization state of optical pulses propagating in dispersive media because of the unavoidable presence of more than a single frequency in the envelope of the pulse. Here we report on the suppression of polarization decoherence in a ring cavity obtained by properly retooling for photonic qubits the "bang-bang" protection technique already employed for nuclear spins and nuclear-quadrupole qubits. Our results show that bang-bang control can be profitably extended to quantum information processes involving flying polarization qubits. This article was published in Phys Rev Lett and referenced in Journal of Computer Science & Systems Biology

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