AQCE

Awesome quantum computing experiments

A curated database of 179 experimental results from 157 papers, with an emphasis on quantum error correction and fault-tolerant quantum computing. Every plot on this page is generated from five CSV files.

Browse the tablesGet the CSV filesRead the paper
Entries
179
Papers
157
Platforms
8
Latest year
2026

Current records

Full history →
Entangled state error2025
8.40e-5
Ion traps· Hughes et al.
Trapped-ion two-qubit gates with > 99.99% fidelity without ground-state cooling
Previous record 3.00e-4 (Ion traps, 2024)
Qubit count2026
11,000
Neutral atoms· Wang et al.
Trapping 11,000 Atoms in a Tweezer Array Generated by a Single Metasurface
Previous record 6,100 (Neutral atoms, 2024)
Relaxation time T12018
3.60e+3 s
NV centers· Abobeih et al.
One-second coherence for a single electron spin coupled to a multi-qubit nuclear-spin environment
Previous record 3 s (Neutral atoms, 2007)
Coherence time T22021
5.50e+3 s
Ion traps· Wang et al.
Single ion qubit with estimated coherence time exceeding one hour
Previous record 667 s (Ion traps, 2017)
Largest QEC code distance2024
d = 29
Superconducting circuits· Acharya et al.
Quantum error correction below the surface code threshold
Previous record d = 25 (Superconducting circuits, 2023)
Magic state error2025
1.00e-4
Superconducting circuits· Rosenfeld et al.
Magic state cultivation on a superconducting quantum processor
Previous record 5.10e-4 (Ion traps, 2025)

Platform rankings

Full page →

One spider chart per metric. Axes are the platforms, the outer ring is rank 1. Solid: best result to date. Dashed: pace of improvement. Drag the year to replay history.

Entangled state error

Outer ring is rank 1. Solid: best value. Dashed: improvement rate.

  1. #1Ion traps8.40e-5
  2. #2Superconducting circuits6.00e-4
  3. #3Semiconductor spins1.00e-3
  4. #4Neutral atoms1.46e-3

Qubit count

Outer ring is rank 1. Solid: best value. Dashed: improvement rate.

  1. #1Neutral atoms11,000
  2. #2Superconducting circuits127
  3. #3Ion traps100
  4. #4Semiconductor spins11
  5. #5NV centers10

Relaxation time T1

Outer ring is rank 1. Solid: best value. Dashed: improvement rate.

  1. #1NV centers3.60e+3 s
  2. #2Neutral atoms42 s
  3. #3Superconducting circuits127 s
  4. #4Semiconductor spins10 µs
  5. #5Graphene50 ns

Coherence time T2

Outer ring is rank 1. Solid: best value. Dashed: improvement rate.

  1. #1Ion traps5.50e+3 s
  2. #2Neutral atoms12.6 s
  3. #3NV centers1.58 s
  4. #4Superconducting circuits1.4 ms
  5. #5Semiconductor spins1 µs

Largest QEC code distance

Outer ring is rank 1. Solid: best value. Dashed: improvement rate.

  1. #1Superconducting circuitsd = 29
  2. #2Neutral atomsd = 7
  3. #3Ion trapsd = 4
  4. #4Photonsd = 3
  5. #5NV centersd = 3
  6. #6NMRd = 3

QEC experiments

Outer ring is rank 1. Solid: best value (count). Dashed: improvement rate.

  1. #1Superconducting circuits34
  2. #2Ion traps10
  3. #3Neutral atoms9
  4. #4NMR5
  5. #5Photons3
  6. #6NV centers1

Magic state error

Outer ring is rank 1. Solid: best value. Dashed: improvement rate.

  1. #1Superconducting circuits1.00e-4
  2. #2Ion traps5.10e-4
  3. #3Neutral atoms6.00e-3

Plots

Click a legend entry to hide it. Hover a point for the paper. Each plot links to its rows in the tables.

Hardware metrics

Two-qubit error, qubit count, coherence and magic states over time.

Entangled state error

Bell-state and two-qubit gate error versus year, with an exponential fit per platform.

entangled_state_error_exp.csvPNG#
Platform
Metric type

Qubit count

Largest number of physical qubits controlled in one experiment, per platform.

qubit_count.csvPNG#

Coherence times

T1 (filled) and T2 (hollow) of physical qubits over time.

physical_qubits.csvPNG#

Magic state error vs acceptance rate

Logical magic state infidelity against the acceptance rate of the preparation or distillation protocol.

msd_exp.csvPNG#
Platform
Magic State

Magic state error over time

Logical magic state infidelity versus year, with error bars from the reported confidence intervals.

msd_exp.csvPNG#
Platform
Magic State

Quantum error correction

Which codes were implemented, where, and how large.

QEC timeline

Every quantum error correction experiment by year and code family. Marker size is the number of experiments.

qec_exp.csvPNG#
Marker Size
1 exp
3 exps

[[n, k, d]] code parameters

Code distance against number of physical qubits for every implemented code.

qec_exp.csvPNG#
Marker Size
1 exp
5 exps
10 exps
16 exps

Data qubits in QEC experiments

Number of data qubits used in QEC experiments per platform over time.

qec_exp.csvPNG#

QEC experiments per platform, cumulative

Running total of QEC experiments by platform.

qec_exp.csvPNG#

QEC experiments per platform, yearly

QEC experiments published each year, stacked by platform.

qec_exp.csvPNG#

QEC experiments per code, cumulative

Running total of experiments by code family.

qec_exp.csvPNG#

QEC codes by platform

Share of each code family and, within it, of each platform.

qec_exp.csvPNG#

Who does the work

Research groups and the industry versus academia split.

Papers per year, industry vs academia

Unique papers in the database by publication year and by the first author's organisation type.

research_groups.csvPNG#

Top research groups

Groups with the most papers in the database, coloured by organisation type. Hover for the per-dataset breakdown.

research_groups.csvPNG#