Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

International Conference on Quantum Information

Dynamical Decoupling in Optical Fibers: Protecting Polarization Qubits from Birefringent Dephasing

Bhaskar Roy Bardhan, Manish K. Gupta, Petr M. Anisimov, Jonathan P. Dowling

Published Jan 1, 2011• 0 citations
Publisher

Abstract

We study preservation of polarization qubits in the polarization maintaining fibers enhanced with dynamical decoupling sequence implemented in space instead of time. Such fibers maintain high fidelity with scalable waveplate implementations for specific input states.
DOI
10.1364/icqi.2011.qwd2

Related papers

Dynamical decoupling in optical fibers: Preserving polarization qubits from birefringent dephasing

Bhaskar Roy Bardhan, Petr M. Anisimov, Manish K. Gupta +4 more

One of the major challenges in quantum computation has been to preserve the coherence of a quantum system against dephasing effects of the environment. The information stored in photon polarization, for example, is quickly lost due to such dephasing, and it is crucial to preserve the input states when one tries to transmit quantum information encoded in the photons through a communication channel. We propose a dynamical decoupling sequence, to protect photonic qubits from dephasing, by integrating wave plates into optical fiber at prescribed locations. We simulate random birefringent noise along realistic lengths of optical fiber and study preservation of polarization qubits through such fibers enhanced with Carr-Purcell-Meiboom-Gill (CPMG) dynamical decoupling. This technique can maintain photonic qubit coherence at high fidelity, making a step toward achieving scalable and useful quantum communication with photonic qubits.

arXiv:1105.4164•Physical Review A•Feb 28, 2012•15 citations

Dynamical Decoupling in Optical Fibers: Preserving Polarization Qubits from Birefringent Dephasing

Bhaskar Roy Bardhan, Petr M. Anisimov, Manish K. Gupta +3 more

One of the major challenges in quantum computation has been to preserve the coherence of a quantum system against dephasing effects of the environment. The information stored in photon polarization, for example, is quickly lost due to such dephasing, and it is crucial to preserve the input states when one tries to transmit quantum information encoded in the photons through a communication channel. We propose a dynamical decoupling sequence, to protect photonic qubits from dephasing, by integrating wave plates into optical fiber at prescribed locations. We simulate random birefringent noise along realistic lengths of optical fiber and study preservation of polarization qubits through such fibers enhanced with Carr-Purcell-Meiboom-Gill (CPMG) dynamical decoupling. This technique can maintain photonic qubit coherence at high fidelity, making a step toward achieving scalable and useful quantum communication with photonic qubits. © 2012 American Physical Society.

Frontiers in Optics•Jan 1, 2011•3 citations

Dynamical decoupling schemes for inhibiting decoherence in the propagation ofsingle-photon polarization qubits

Giovanni Di Giuseppe, Marco Lucamarini, Rupesh Kumar +3 more

One of the fundamental limitations to high bit rate, long distance, telecommunication in optical fibers is Polarization Mode Dispersion (PMD). Here we show how one can adapt bang-bang control techniques for suppressing the decoherence of polarization states in optical fibers by carrying out controlled rotations of polarization at predetermined locations along the fiber. We propose an experimental proof-ofprinciple demonstration of the idea based on the propagation of polarization qubits in a ring-cavity containing birefringent crystals and wave-plates.

•Jan 1, 2007•0 citations

Preserving photon qubits in an unknown quantum state with Knill dynamical decoupling: Towards an all optical quantum memory

Manish K. Gupta, Erik J. Navarro, Todd Moulder +5 more

The implementation of polarization-based quantum communication is limited by signal loss and decoherence caused by the birefringence of a single-mode fiber. We investigate the Knill dynamical decoupling scheme, implemented using half-wave plates, to minimize decoherence and show that a fidelity greater than $99%$ can be achieved in the absence of rotation error and a fidelity greater than $96%$ can be achieved in the presence of rotation error. Such a scheme can be used to preserve any quantum state with high fidelity and has potential application for constructing all optical quantum delay lines, quantum memory, and quantum repeaters.

arXiv:1412.6525•Physical Review A•Mar 30, 2015•11 citations

Preserving photon qubits in an unknown quantum state with Knill dynamical decoupling: towards an all optical quantum memory

Manish K. Gupta, Erik J. Navarro, Todd Moulder +5 more

The implementation of polarization-based quantum communication is limited by signal loss and decoherence caused by the birefringence of a single-mode fiber. We investigate the Knill dynamical decoupling scheme, implemented using half-wave plates, to minimize decoherence and show that a fidelity greater than 99% can be achieved in absence of rotation error and fidelity greater than 96% can be achieved in presence of rotation error. Such a scheme can be used to preserve any quantum state with high fidelity and has potential application for constructing all optical quantum delay line, quantum memory, and quantum repeater.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Mar 4, 2015•1 citation

Preserving Entanglement of Flying Qubits in Optical Fibers by Dynamical Decoupling

Bin Yan, Chuan‐Feng Li, Guang‐Can Guo

We theoretically investigate the influence of dynamical decoupling sequence in preserving entanglement of polarized photons in polarization-maintaining birefringent fibers(PMF) under a classic Gauss 1/f noise. We study the dynamic evolution of entanglement along the control sequence embedded fibers. Decoherence due to dispersion of polarization mode in PMF can be dramatically depressed, even for a wild optical width. Entanglement degree can be effectively preserved while the control pulse is implemented.

arXiv:1111.6670•Nov 29, 2011•1 citation
One of the major challenges in quantum computation has been to preserve the coherence of a quantum system against dephasing effects of the environment. The information stored in photon polarization, for example, is quickly lost due to such dephasing, and it is crucial to preserve the input states when one tries to transmit quantum information encoded in the photons through a communication channel. We propose a dynamical decoupling sequence, to protect photonic qubits from dephasing, by integrating wave plates into optical fiber at prescribed locations. We simulate random birefringent noise along realistic lengths of optical fiber and study preservation of polarization qubits through such fibers enhanced with Carr-Purcell-Meiboom-Gill (CPMG) dynamical decoupling. This technique can maintain photonic qubit coherence at high fidelity, making a step toward achieving scalable and useful quantum communication with photonic qubits.
One of the major challenges in quantum computation has been to preserve the coherence of a quantum system against dephasing effects of the environment. The information stored in photon polarization, for example, is quickly lost due to such dephasing, and it is crucial to preserve the input states when one tries to transmit quantum information encoded in the photons through a communication channel. We propose a dynamical decoupling sequence, to protect photonic qubits from dephasing, by integrating wave plates into optical fiber at prescribed locations. We simulate random birefringent noise along realistic lengths of optical fiber and study preservation of polarization qubits through such fibers enhanced with Carr-Purcell-Meiboom-Gill (CPMG) dynamical decoupling. This technique can maintain photonic qubit coherence at high fidelity, making a step toward achieving scalable and useful quantum communication with photonic qubits. © 2012 American Physical Society.
One of the fundamental limitations to high bit rate, long distance, telecommunication in optical fibers is Polarization Mode Dispersion (PMD). Here we show how one can adapt bang-bang control techniques for suppressing the decoherence of polarization states in optical fibers by carrying out controlled rotations of polarization at predetermined locations along the fiber. We propose an experimental proof-ofprinciple demonstration of the idea based on the propagation of polarization qubits in a ring-cavity containing birefringent crystals and wave-plates.
The implementation of polarization-based quantum communication is limited by signal loss and decoherence caused by the birefringence of a single-mode fiber. We investigate the Knill dynamical decoupling scheme, implemented using half-wave plates, to minimize decoherence and show that a fidelity greater than 9999%99 can be achieved in the absence of rotation error and a fidelity greater than 9696%96 can be achieved in the presence of rotation error. Such a scheme can be used to preserve any quantum state with high fidelity and has potential application for constructing all optical quantum delay lines, quantum memory, and quantum repeaters.
The implementation of polarization-based quantum communication is limited by signal loss and decoherence caused by the birefringence of a single-mode fiber. We investigate the Knill dynamical decoupling scheme, implemented using half-wave plates, to minimize decoherence and show that a fidelity greater than 99% can be achieved in absence of rotation error and fidelity greater than 96% can be achieved in presence of rotation error. Such a scheme can be used to preserve any quantum state with high fidelity and has potential application for constructing all optical quantum delay line, quantum memory, and quantum repeater.
We theoretically investigate the influence of dynamical decoupling sequence in preserving entanglement of polarized photons in polarization-maintaining birefringent fibers(PMF) under a classic Gauss 1/f noise. We study the dynamic evolution of entanglement along the control sequence embedded fibers. Decoherence due to dispersion of polarization mode in PMF can be dramatically depressed, even for a wild optical width. Entanglement degree can be effectively preserved while the control pulse is implemented.