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Piccolissimo

Proprietary, cloud-based high-performance solution for large-scale, complex real-world problems

Calibration Protocol.jl
1using Piccolo
2using Random
3# Define system
4H_drift = PAULIS[:Z]
5H_drives = [PAULIS[:X], PAULIS[:Y]]
6sys = QuantumSystem(H_drift, H_drives, [1.0, 1.0])
7# Create trajectory
8T, N = 10.0, 100
9times = collect(range(0, T, length=N))
10pulse = ZeroOrderPulse(0.1 * randn(2, N), times)
11qtraj = UnitaryTrajectory(sys, pulse, GATES[:X])
12# Solve
13qcp = SmoothPulseProblem(qtraj, N; Q=100.0, R=1e-2)
14solve!(qcp, max_iter=100)
Calibration Protocol.py
1import pypiccolo
2import numpy as np
3# Define system
4H_drift = PAULIS['Z']
5H_drives = [PAULIS['X'], PAULIS['Y']]
6sys = QuantumSystem(H_drift, H_drives, [1.0, 1.0])
7# Create trajectory
8T, N = 10.0, 100
9times = np.linspace(0, T, N)
10pulse = ZeroOrderPulse(0.1 * np.random.randn(2, N), times)
11qtraj = UnitaryTrajectory(sys, pulse, GATES['X'])
12# Solve
13qcp = SmoothPulseProblem(qtraj, N, Q=100.0, R=1e-2)
14solve(qcp, max_iter=100)

Scalable Quantum Solver

Harmoniqs' proprietary high-performance solver layer. Purpose-built for quantum optimal control at scales where generic solvers hit a wall — more qubits, more levels, larger Hilbert spaces — without sacrificing physical accuracy or gate fidelity.

Extends Piccolo for large-scale, complex real-world quantum problems

Handles larger Hilbert spaces and higher qubit counts than generic solvers
Advanced integrators for high-accuracy dynamics simulation
Built on HPC infrastructure

The Solution

‘Piccolo.jl is a meta-package for quantum optimal control using the Pade Integrator Collocation (Piccolo) method. This package reexports the following packages

QuantumCollocation.jl

NamedTrajectories.jl

TrajectoryIndexingUtils.jl

PiccoloQuantumObjects.jl

How are we different?

Robotics and Aerospace Algorithms

Piccolo uses proven algorithms from robotics and aerospace fields that have mastered the design of precision control under uncertainty.

Real-time Software Design

Users can design control sequences, calibrate in situ, and compensate for noisy, drifting hardware in real time.

Advancing Quantum Research Together

Our work builds on robotics-grade control theory and published research. Let’s explore how Piccolo can support your experiments and future publications.
Let’s Talk Quantum Control
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