49q, FL=6, b=0.25, delta= 0.15, Heron r3 experiments

[Vinay-Tripathi]

Name

49x1296, ibm_boston (layout 2)

Circuit

operator_loschmidt_echo_49x1296

Observable value

0.657

Error bound (low)

NA

Error bound (high)

NA

Method

Global rescaling

Method proof

Circuit parameters:

$O = Z_{132}Z_{139}Z_{152}$
$L = 6$
$b = 0.25$
$\delta = 0.15$
Number of initializations $N_{\text{int}}$: $500$
Number of twirls per initialization: $21$
Number of shots per twirl: $251$
Circuit layout is shown below:

Note: The observable $Z_{132}Z_{139}Z_{152}$ In this layout is equivalent to the $Z_{52}Z_{59}Z_{72}$ in the layout of the circuit instance operator_loschmidt_echo_49x1296.

Global rescaling:

The mitigated signal for a given delta is obtained by rescaling the corresponding unmitigated signal by the unmitigated signal at $\delta = 0$.

Mitigated results using global rescaling:

$f_\delta(O) =0.657$

Authors

No response

Institutions

IBM Quantum, Algorithmiq, Flatiron Institute

Quantum runtime (seconds)

4260

Classical runtime (seconds)

No response

Compute resources (quantum)

ibm_boston

Compute resources (classical)

No response

Notes

No response