Experimental quantum communication without a shared reference frame.

  title={Experimental quantum communication without a shared reference frame.},
  author={Teng-Yun Chen and Jun Zhang and Jean-Christian Boileau and Xian-min Jin and Bin Yang and Qiang Zhang and Tao Yang and Raymond Laflamme and Jian-Wei Pan},
  journal={Physical review letters},
  volume={96 15},
We present an experimental realization of a robust quantum communication scheme [Phys. Rev. Lett. 93, 220501 (2004)] using pairs of photons entangled in polarization and time. Our method overcomes errors due to collective rotation of the polarization modes (e.g., birefringence in optical fiber or misalignment), is insensitive to the phase's fluctuation of the interferometer, and does not require any shared reference frame including time reference, except the need to label different photons. The… Expand

Topics from this paper

Alignment-free quantum key distribution by postselection
An alignment-free photonic qubit transmission scheme, in which the authorized parties do not have to calibrate their Cartesian reference frames in advance, and it can be implemented with only passive linear optics, which make it efficient and practical with current technology. Expand
Experimental Quantum Error Detection
The demonstrated resource efficiency and state independence make this protocol a promising candidate for implementing a real-world quantum communication network. Expand
Experimental Quantum Error-Free Transmission
Error-free transmission (EFT) of quantum information is a crucial ingredient in quantum communication network. To overcome the unavoidable decoherence in noisy channel, to date, many efforts haveExpand
Experimental demonstration of robust entanglement distribution over reciprocal noisy channels assisted by a counter-propagating classical reference light
The proposed scheme to distribute polarization-entangled photon pairs against a general collective noise including the bit flip noise and the phase noise is experimentally demonstrated and it is shown that the method is applicable not only to the entanglement distribution but also to the transmission of arbitrary polarization states of a single photon. Expand
Experimental ancilla-assisted qubit transmission against correlated noise using quantum parity checking
We report the experimental demonstration of a transmission scheme which has the ability to transmit any state of a photonic qubit over unstabilized optical fibres, regardless of whether the qubit isExpand
Entangled photons and quantum communication
This article reviews the progress of quantum communication that utilizes photonic entanglement. We start with a survey of various methods for generating entangled photons, followed by an introductionExpand
Experimental realization of a reference-frame-independent decoy BB84 quantum key distribution based on Sagnac interferometer.
This work designs and experimentally demonstrate an RFI-BB84-QKD system by joint encoding with the polarization and orbital angular momentum states of the photons, and uses self-compensating fiber Sagnac interferometers and q-plates to passively manipulate the rotation-invariant photon states, which makes the system feasible for high-speed operation using off-the-shelf components. Expand
Controlled quantum key distribution with three-photon polarization-entangled states via the collective noise channel
Using three-photon polarization-entangled GHZ states or W states, we propose controlled quantum key distribution protocols for circumventing two main types of collective noise, collective dephasingExpand
Experimental polarization encoded quantum key distribution over optical fibres with real-time continuous birefringence compensation
In this paper we demonstrate an active polarization drift compensation scheme for optical fibres employed in a quantum key distribution experiment with polarization encoded qubits. The quantumExpand
Reference-frame-independent measurement-device-independent quantum key distribution using hybrid logical basis
An alignment-free MDI-QKD scheme is proposed with rotational-invariant state, which is immune to the collective noise induced by misalignment between two distant legitimate parties, and has apparent improvements both in transmission distance and key generation rate. Expand