Study of the Quantum Channel between Earth and Space for Satellite Quantum Communications

Bonato, Cristian; Tomaello, Andrea; Deppo, Vania Da; Naletto, G.; Villoresi, Paolo

doi:10.1007/978-3-642-04260-7_5

Cited by 4 publications

(8 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(Note: The map of the realistic space-earth channel will be given in Eq. 14)). Any Hermitian operator G can be expressed as a linear combination of the Pauli operators I, X, Y and Z.…”

Section: A Error Characterizationmentioning

confidence: 99%

“…Quantum error-correction schemes use different techniques to correct the various possible errors which occur in a quantum channel. In the first decade of the 21st century, many revolutionary properties of quantum channels were discovered [12][13][14][15][16], [19][20][21][22] however the efficient errorcorrection in quantum systems is still a challenge. These error-correction schemes use different techniques to correct the various possible errors which can occur in a quantum channel.…”

Section: Introductionmentioning

confidence: 99%

“…The channel coding scheme provides capacity-achieving communication over slightly depolarizing space-earth channels.correct the unknown errors of the channel, without any knowledge of the channel output pilot states. The probabilistic behavior of these controlled quantum gates, and the storing process of unitary transformations in quantum states were studied in the literature [12,13].An immediate practical application of the pilot quantum-error correction is in polarization compensation in space-earth quantum communications [1], [6], [14][15][16]. In space-earth quantum communications the relative motion of the ground station and the satellite causes a rotation in the polarization of the quantum states.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Pilot quantum error correction for global-scale quantum communications

Gyöngyösi

Imre

2013

2013 IEEE Symposium on Swarm Intelligence (SIS)

View full text Add to dashboard Cite

Real global-scale quantum communications and quantum key distribution systems cannot beimplemented by the current fiber and free-space links. These links have high attenuation, low polarization-preserving capability or extreme sensitivity to the environment. A potential solution to the problem is the space-earth quantum channels. These channels have no absorption since the signal states are propagated in empty space, however a small fraction of these channels is in the atmosphere, which causes slight depolarizing effect. Furthermore, the relative motion of the ground station and the satellite causes a rotation in the polarization of the quantum states. In the current approaches to compensate for these types of polarization errors, high computational costs and extra physical apparatuses are required. Here we introduce a novel approach which breaks with the traditional views of currently developed quantum-error correction schemes. The proposed solution can be applied to fix the polarization errors which are critical in space-earth quantum communication systems. The channel coding scheme provides capacity-achieving communication over slightly depolarizing space-earth channels.correct the unknown errors of the channel, without any knowledge of the channel output pilot states. The probabilistic behavior of these controlled quantum gates, and the storing process of unitary transformations in quantum states were studied in the literature [12,13].An immediate practical application of the pilot quantum-error correction is in polarization compensation in space-earth quantum communications [1], [6], [14][15][16]. In space-earth quantum communications the relative motion of the ground station and the satellite causes a rotation in the polarization of the quantum states. In the current approaches to compensate for these types of polarization errors, high computational costs and extra physical apparatuses are required. The proposed quantum error-correction scheme can be applied to fix the polarization errors which are critical in space-earth quantum communication systems. Our polarization compensation scheme can be implemented in practice without any extra hardware or software costs, providing an easily implemented on-the-fly polarization compensation scheme. There are several polarization techniques existing in the literature, but in each case, further hardware and software implementations are required and the cost of these practical polarization solutions is high. Our scheme uses minimal redundancy and adds it into an arbitrary large block set instead of each individual qubits. Using our scheme, the error-correction of the data qubits can be achieved without any knowledge about angle of the polarization rotation error.This paper is organized as follows. In Section 2, we give an exact problem in space-earth quantum channels where the proposed technique can be applied. In Section 3 we show the details of the channel coding scheme. In Section 4 we introduce the channel model and express the capacities. In Section 5 we present t...

show abstract

“…(Note: The map of the realistic space-earth channel will be given in Eq. 14)). Any Hermitian operator G can be expressed as a linear combination of the Pauli operators I, X, Y and Z.…”

Section: A Error Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Pilot quantum error correction for global-scale quantum communications

Gyöngyösi

Imre

2013

2013 IEEE Symposium on Swarm Intelligence (SIS)

View full text Add to dashboard Cite

show abstract

“…Table 3 below describes demonstration experiments related to single photon and photon beam exchanges from ground to space as reported in Refs. [4,37,38]. In these ground-to-satellite experiments, photon measurements were able to detect returns from a low earth orbiting satellite whose orbit's heights were 610 km and 1485 km, respectively.…”

Section: Introductionmentioning

confidence: 98%

Review of representative free-space quantum communications experiments

et al. 2010

View full text Add to dashboard Cite

Worldwide free-space quantum communications (QC) experiments over the past decade are reviewed and discussed with attention to technological QC trends. Experiments reported in the open literature have included those conducted along horizontal propagation paths of varying distances, as well as communication paths from ground-to-aircraft, ground-to-space, and demonstrations in the laboratory. Available data characterize propagation distances, transmission speeds, quantum key distribution (QKD) protocols, and quantum bit error rates (QBER). While ber optic implementations of quantum communications technologies are currently being tested for communications infrastructure it is important to also consider that free-space quantum communications will play an important role in securing such applications as earth-to-satellite, end of line connects, and defense implementations.

show abstract

“…The criteria and analysis for the Quantum Key Distribution (QKD) in space has been analyzed in detail in a number of previous works and will not be repeated here. [4][5][6][7] On the other hand, we aim here also to point out the level of losses and signal-to-noise ration in the case of the intersatellite links. …”

Section: Introductionmentioning

confidence: 99%

Intersatellite quantum communication feasibility study

et al. 2011

Self Cite

View full text Add to dashboard Cite

The shift in the Communication paradigm from the bit to the qubit is increasingly exploited in terrestrial long range links and networks, with strong potentials in secure communications, quantum computing and metrology. The space-to-ground quantum key distribution was also considered as feasible. A new different scenario for the quantum communications is that of the intersatellite link. In this study we focus on the extension of intersatellite communications into the quantum domain. The long distances involved and the fast relative motion are severe constraints, partially compensated by the absence of beam degradation due to the propagation in the atmosphere as well as the relatively low background noise level. We address the conception of the optical terminal and the predicted performances in the case of constellations of LEO and MEO satellite including the quantum communications and quantum teleportation

show abstract

Study of the Quantum Channel between Earth and Space for Satellite Quantum Communications

Cited by 4 publications

References 5 publications

Pilot quantum error correction for global-scale quantum communications

Pilot quantum error correction for global-scale quantum communications

Review of representative free-space quantum communications experiments

Intersatellite quantum communication feasibility study

Contact Info

Product

Resources

About