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Perfect Quantum Error Correction Code
Quantum Physics · Submitted 27 Feb 1996
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We present a quantum error correction code which protects a qubit of information against general one qubit errors which maybe caused by the interaction with the environment.
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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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The abstract, sentence by sentence
We present a quantum error correction code which protects a qubit of information against general one qubit errors which maybe caused by the interaction with the environment. To accomplish this, we encode the original state by distributing quantum information over five qubits, the minimal number required for this task. We give a simple circuit which takes the initial state with four extra qubits in the state |0> to the encoded state. The circuit can be converted into a decoding one by simply running it backward. Reading the extra four qubits at the decoder's output we learn which one of the sixteen alternatives (no error plus all fifteen possible 1-bit errors) was realized. The original state of the encoded qubit can then be restored by a simple unitary transformation.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present a quantum error correction code which protects a qubit of information against general one qubit errors which maybe caused by the interaction with the environment. | contribution 1.00 | 0.91 | 0.70 | asserted 0.97 |
| s1 | To accomplish this, we encode the original state by distributing quantum information over five qubits, the minimal number required for this task. | method 0.75 | 0.85 | 0.28 | asserted 1.00 |
| s2 | We give a simple circuit which takes the initial state with four extra qubits in the state |0> to the encoded state. | method 0.88 | 0.93 | 0.06 | asserted 1.00 |
| s3 | The circuit can be converted into a decoding one by simply running it backward. | method 0.94 | 0.79 | 0.05 | asserted 0.90 |
| s4 | Reading the extra four qubits at the decoder's output we learn which one of the sixteen alternatives (no error plus all fifteen possible 1-bit errors) was realized. | method 0.94 | 0.85 | 0.10 | asserted 0.99 |
| s5 | The original state of the encoded qubit can then be restored by a simple unitary transformation. | method 0.92 | 0.79 | 0.22 | asserted 0.97 |
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Original abstract
We present a quantum error correction code which protects a qubit of information against general one qubit errors which maybe caused by the interaction with the environment. To accomplish this, we encode the original state by distributing quantum information over five qubits, the minimal number required for this task. We give a simple circuit which takes the initial state with four extra qubits in the state |0> to the encoded state. The circuit can be converted into a decoding one by simply running it backward. Reading the extra four qubits at the decoder's output we learn which one of the sixteen alternatives (no error plus all fifteen possible 1-bit errors) was realized. The original state of the encoded qubit can then be restored by a simple unitary transformation.
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References
How the literature uses it
24 arXiv papers cite this in 35 sentences
Papers citing it · 26 sentences without a confident label
Compares with it 2 papers
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In contrast, the smallest QEC code that exactly corrects any unknown single-qubit Pauli error requires five qubits [ref] .
Erasure qubits: Overcoming the $T_1$ limit in superconducting circuits · Introduction · 0.81
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As a comparison, if one uses the five-qubit perfect code [ref] to encode the $j$ state on each link, which is able to correct any single-qubit error, it will take about $15N$ physical qubits for a $N$-plaquette lattice.
Quantum Error Correction Codes for Truncated SU(2) Lattice Gauge Theories · Conclusions · 1.00
Cites it as background 6 papers
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A number of codes are plausible candidates, including the $5$-qubit code [ref] , the $7$-qubit code [ref] , surface codes [ref] , and the $9$-qubit Bacon-Shor subsystem code [ref] , but all of these would require $10$ or more qubits for a full fault-tolerant protocol.
Quantum fault tolerance in small experiments · Small circuits for fault tolerance · 0.89
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Small size examples are the 9-qubit Shor code [ref] , the 7-qubit Steane code [ref] , and the 5 qubit code [ref] .
Quantum Software Ecosystem Design · Error Correction · 0.83
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The five qubit code is a $[[5,1,3]]$ stabiliser code with four stabilisers and two logical operators [ref] .
Tensor-network decoders for process tensor descriptions of non-Markovian noise · Five-Qubit Code · 0.96
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