Exemplo n.º 1
0
def run_on_q_single(wave, params):
    qctrl = Qctrl(email=config['EMAIL'], password=config['PW'])

    # Extract parameters
    duration = params["duration"]
    shot_count = params["shot_count"]

    #build controls
    repetitions = [1, 4, 16, 32, 64]
    controls = []
    max_amp = max(wave[:, 0])
    wave[:, 0] = wave[:, 0] / max_amp
    values = wave[:, 0] * np.exp(1j * wave[:, 1])

    # Iterate through possible repetitions
    for rep in repetitions:
        controls.append({
            "duration": duration,
            "values": values,
            "repetition_count": rep
        })

    #run experiment
    experiment_results = qctrl.functions.calculate_qchack_measurements(
        controls=controls,
        shot_count=shot_count,
    )

    return repetitions * 1, experiment_results
Exemplo n.º 2
0
def run_on_q(waves_list, params):
    qctrl = Qctrl(email=config['EMAIL'], password=config['PW'])

    # Extract parameters
    duration = params["duration"]
    shot_count = params["shot_count"]

    repetitions = [1, 4, 16, 32, 64]

    #build controls
    controls = []
    for wave in waves_list:
        # Create a random string of complex numbers for each controls.
        max_amp = max(wave[:, 0])
        wave[:, 0] = wave[:, 0] / max_amp
        values = wave[:, 0] * np.exp(1j * wave[:, 1])

        # Iterate through possible repetitions
        for rep in repetitions:
            controls.append({
                "duration": duration,
                "values": values,
                "repetition_count": rep
            })

    #conduct experiment
    experiment_results = qctrl.functions.calculate_qchack_measurements(
        controls=controls,
        shot_count=shot_count,
    )

    return repetitions * len(waves_list), experiment_results
Exemplo n.º 3
0
# # Boulder Opal
from qctrlvisualizer import QCTRL_STYLE_COLORS, plot_controls, get_qctrl_style
from qctrlopencontrols import new_primitive_control
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.gridspec as gridspec
import jsonpickle
import time
from qctrl import Qctrl

qctrl = Qctrl()
Exemplo n.º 4
0
import jsonpickle
import matplotlib.gridspec as gridspec
import matplotlib.pyplot as plt
import numpy as np
from qctrlvisualizer import get_qctrl_style, plot_controls
from scipy import interpolate
from scipy.optimize import curve_fit

import os

# Q-CTRL imports
from qctrl import Qctrl

# Starting a session with the API
qctrl = Qctrl(email=os.getenv('EMAIL'), password=os.getenv('PASSWORD'))

# Choose to run experiments or to use saved data
use_saved_data = False

# Plotting parameters
plt.style.use(get_qctrl_style())
prop_cycle = plt.rcParams["axes.prop_cycle"]
colors = prop_cycle.by_key()["color"]
markers = {"x": "x", "y": "s", "z": "o"}
lines = {"x": "--", "y": "-.", "z": "-"}

# Definition of operators and functions
sigma_z = np.array([[1.0, 0.0], [0.0, -1.0]], dtype=np.complex)
sigma_x = np.array([[0.0, 1.0], [1.0, 0.0]], dtype=np.complex)
sigma_y = np.array([[0.0, -1.0j], [1.0j, 0.0]], dtype=np.complex)
X90_gate = np.array([[1.0, -1j], [-1j, 1.0]], dtype=np.complex) / np.sqrt(2)
Exemplo n.º 5
0
  y = np.zeros((m, nn))

  for (pi, p) in enumerate (xp):
    si = np.tile(np.sinc (xt - p), (m, 1))
    y[:, pi] = np.sum(si * x)

  return y.squeeze ()

# In[1]:
from qctrlvisualizer import get_qctrl_style, plot_controls
from qctrl import Qctrl

from dotenv import dotenv_values
config = dotenv_values(".env")
qctrl = Qctrl(email=config['EMAIL'], password=config['PW'])

# In[2]:

error_norm =  lambda A, B : 1 - np.abs(np.trace((A.conj().T @ B)) / 2) ** 2

def estimate_probability_of_one(measurements):
    size = len(measurements)
    probability = np.mean(measurements)
    standart_error = np.std(measurements) / np.sqrt(size)
    return (probability, standart_error)

def simulate_more_realistic_qubit(
    duration=1, values=np.array([np.pi]), shots=1024, repetitions=1
):
import matplotlib.pyplot as plt
import numpy as np
from qctrlvisualizer import get_qctrl_style
from scipy.linalg import expm

from qctrl import Qctrl

plt.style.use(get_qctrl_style())

# Define standard matrices
sigma_x = np.array([[0, 1], [1, 0]], dtype=np.complex)
sigma_y = np.array([[0, -1j], [1j, 0]], dtype=np.complex)
sigma_z = np.array([[1, 0], [0, -1]], dtype=np.complex)

# Start a session with the API
qctrl = Qctrl()


# ## Characterizing the control lines
# 
# In this first section, we will consider the identification of a linear filter that alters the shape of the pulses in the control line. By feeding different control pulses and then measuring the qubit, we are able to extract information about the parameters that characterize the filter. This setup is illustrated in the figure below.
# 
# ![Illustration_1.png](attachment:Illustration_1.png)
# 
# To exemplify this procedure, we will consider a one-qubit system obeying the following Hamiltonian:
# 
# $$ H(t) = \frac{1}{2} \mathcal{L} \left[ \alpha(t) \right] \sigma_x, $$
# 
# where $\alpha(t)$ is a real time-dependent control pulse and $\mathcal{L}$ is a filter applied to the pulse.
# This linear filter acts on the control pulse $\alpha(t)$ according to the convolution product with some kernel $K(t)$:
# 
Exemplo n.º 7
0
def step_impl(context):
    context.target = Qctrl(KEY, api_root=TEST_API_HOST)
import matplotlib.pyplot as plt
import numpy as np

from qctrlvisualizer import get_qctrl_style, plot_controls
from qctrl import Qctrl

import os
from dotenv import load_dotenv

load_dotenv()
email = os.getenv('EMAIL')
password = os.getenv('PASS')

qctrl = Qctrl(email=email, password=password)


def get_filtered_results(duration=1,
                         values=np.array([np.pi]),
                         shots=1024,
                         repetitions=1):
    # 1. Limits for drive amplitudes
    assert np.max(values) <= 1.0
    assert np.min(values) >= -1.0
    max_drive_amplitude = 2 * np.pi * 20  # MHz

    # 2. Dephasing error
    dephasing_error = -2 * 2 * np.pi  # MHz

    # 3. Amplitude error
    amplitude_i_error = 0.98
    amplitude_q_error = 1.03