Ultrafast Long-Distance Quantum Communication with Static Linear Optics

Fabian Ewert; Marcel Bergmann; Peter van Loock

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Ultrafast Long-Distance Quantum Communication with Static Linear Optics

Fabian Ewert, Marcel Bergmann, Peter van Loock

Quantum Physics · Submitted 23 Mar 2015

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim As a main application, we show that all-optical quantum communication over large distances with communication rates similar to those of classical communication is possible solely based on local state teleportations using optical sources of encoded Bell states, fixed arrays of beam splitters, and photon detectors.

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arXiv ID1503.06777 (version 2)

Pith IDDHVZNI34, Pith's permanent record of this paper and its review

CitationFabian Ewert, Marcel Bergmann, Peter van Loock. "Ultrafast Long-Distance Quantum Communication with Static Linear Optics." arXiv:1503.06777 (2015). https://pith.science/paper/DHVZNI34

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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,691 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.89 · human participants 0.01 · controlled comparison 0.03 · randomized assignment 0.01 · states quantitative result 0.13 · compares with prior results 0.20 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We propose a projection measurement onto encoded Bell states with a static network of linear optical elements. By increasing the size of the quantum error correction code, both Bell measurement efficiency and photon-loss tolerance can be made arbitrarily high at the same time. As a main application, we show that all-optical quantum communication over large distances with communication rates similar to those of classical communication is possible solely based on local state teleportations using optical sources of encoded Bell states, fixed arrays of beam splitters, and photon detectors. As another application, generalizing state teleportation to gate teleportation for quantum computation, we find that in order to achieve universality the intrinsic loss tolerance must be sacrificed and a minimal amount of feedforward has to be added.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We propose a projection measurement onto encoded Bell states with a static network of linear optical elements.	contribution 0.69	0.56	0.08	asserted 0.66
s1	By increasing the size of the quantum error correction code, both Bell measurement efficiency and photon-loss tolerance can be made arbitrarily high at the same time.	result 0.94	0.79	0.22	asserted 0.51
s2	As a main application, we show that all-optical quantum communication over large distances with communication rates similar to those of classical communication is possible solely based on local state teleportations using optical sources of encoded Bell states, fixed arrays of beam splitters, and photon detectors.	result 0.65	0.82	0.79	asserted 0.66
s3	As another application, generalizing state teleportation to gate teleportation for quantum computation, we find that in order to achieve universality the intrinsic loss tolerance must be sacrificed and a minimal amount of feedforward has to be added.	result 0.61	0.91	0.06	asserted 1.00

What kind of paper the classifier reports this is: method or tool 0.90 · evidence from proof or derivation 0.71.

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arXiv listing abstract v2

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full text
figures and tables
references and citing sentences
relations to other papers

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P abstract

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S sections
T body sentences
C citations
R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We propose a projection measurement onto encoded Bell states with a static network of linear optical elements. By increasing the size of the quantum error correction code, both Bell measurement efficiency and photon-loss tolerance can be made arbitrarily high at the same time. As a main application, we show that all-optical quantum communication over large distances with communication rates similar to those of classical communication is possible solely based on local state teleportations using optical sources of encoded Bell states, fixed arrays of beam splitters, and photon detectors. As another application, generalizing state teleportation to gate teleportation for quantum computation, we find that in order to achieve universality the intrinsic loss tolerance must be sacrificed and a minimal amount of feedforward has to be added.

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References

How the literature uses it

5 arXiv papers cite this in 11 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 6 sentences without a confident label

Compares with it 2 papers

Thus, a cat-encoded logical qubit is more sensitive to too large losses and too large $L_0$ than, for instance, a single-photon-based, multi-mode, QPC-encoded qubit for which $L_0∼1 km$ works [ref] .

Quantum error correction against photon loss using multi-component cat states · Application In A One-Way Quantum Communication Scheme · 0.93
(ii) The scheme recently proposed by Ewert et al. [ref] , similarly with ours, employs multiphoton entanglement encoding.

Nearly deterministic Bell measurement with multiphoton entanglement for efficient quantum information processing · Comparison with our scheme · 0.99

Cites it as background 1 paper

An optical implementation is considered in [ref] .

Measurement-based Quantum Communication · Other approaches · 0.90

What it cites · 3 sentences without a confident label

Compares with 2 papers

[The recent benchmarks for repeaterless communication, the so-called Takeoka-Guha-Wilde (TGW) bound [ref] and its refinements [ref] relating to the transmission rate per mode, are comfortably beaten by our scheme; see [ref] .].

Fundamental Limits of Repeaterless Quantum Communications · Introduction · 1.00
[The recent benchmarks for repeaterless communication, the so-called Takeoka-Guha-Wilde (TGW) bound [ref] and its refinements [ref] relating to the transmission rate per mode, are comfortably beaten by our scheme; see [ref] .].

Ultrafast Fault-Tolerant Long-Distance Quantum Communication with Static Linear Optics · Introduction · 1.00

Cites as background 2 papers

While one class of schemes focused on the correction of operational errors [ref] , another class did include QEC against transmission losses making high-rate loss-tolerant [ref] or even fully fault-tolerant [ref] LDQC possible.

Rate-distance tradeoff and resource costs for all-optical quantum repeaters · Introduction · 0.83
While one class of schemes focused on the correction of operational errors [ref] , another class did include QEC against transmission losses making high-rate loss-tolerant [ref] or even fully fault-tolerant [ref] LDQC possible.

Role of syndrome information on a one-way quantum repeater using teleportation-based error correction · Introduction · 0.83

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