c2lr4x4_BaSr - circuit+cooling

Steps 0

Cost 0

0 edits

Legend

Learn

Program

Hardware program

Source circuit

Machine

export

Write a programme

Evaluation

Study notes · 01_c2lr4x4index

29.8 ms (jones) / 29.8 ms (transport) · 2.3 ions per transport instruction · not buildable · R10: Lean checker + tableau

24 legs on the wires of a 4 x 4 junction lattice, Ba-Sr crystals; compiled by the baseline C2LR router. LER per round 4.93e-04, 95% interval 4.3e-04 to 5.6e-04 (207 errors in 140,000 shots)

or open #step=N

From ions to noise: the stim programdownload .stim

LER per round 4.93e-04 (95%: 4.30e-04 to 5.65e-04)

207 logical errors in 140,000 shots of 3 rounds, decoder pymatching, seed 20260928; noise model qccd-noise@1. The stim circuit below has 24 detectors and 17 qubits, one per ion. Highest n̄ at a two-qubit gate: 0.358; longest chain at a gate: 2.

where the error comes from	stim	expected errors	share
The two-ion gate (ms_base)	`DEPOLARIZE2`	0.1325	46%
The two-ion gate (ms_heating)	`DEPOLARIZE2`	0.0175	6%
The two-ion gate (ms_chain)	`DEPOLARIZE2`	0.0000	0%
A one-ion pulse	`DEPOLARIZE1`	0.0078	3%
A wrong readout + A wrong readout, in the X basis	`X_ERROR, Z_ERROR`	0.0528	18%
A wrong reset	`X_ERROR`	0.0800	27%
Dephasing while the clock runs	`Z_ERROR`	0.0004	0%
total		0.2910

Hover a row for the clauses of the noise model's text that book it; the noise model, clause by clause, and every term it uses on the Evaluation page. Red lines below are noise. Each block is one hardware instruction: click it to move the animation there; the block of the current step is highlighted as the program plays.