Dinfio Documentation — Module Reference: quantum

Description

A high-performance quantum computing simulator in Dinfio. This module lets you programme and simulate quantum algorithms, quantum information, and quantum machine learning.

Constants

bra_0 — This constant represents bra \(\bra{0}\)
bra_1 — This constant represents bra \(\bra{1}\)
e — Mathematical \(e\) constant
gate_h — The matrix representation of \(H\) gate
gate_i — The matrix representation of \(I\) gate
gate_x — The matrix representation of \(X\) gate
gate_y — The matrix representation of \(Y\) gate
gate_z — The matrix representation of \(Z\) gate
ket_0 — This constant represents state \(\ket{0}\)
ket_1 — This constant represents state \(\ket{1}\)
negative_i — Negative \(i\) number (\(-\sqrt{-1}\))
pi — Mathematical \(\pi\) constant
positive_i — Positive \(i\) number (\(\sqrt{-1}\))

Functions

fidelity() — Calculate the fidelity of two states \(\ket{\psi}\) and \(\ket{\phi}\)
from_binary() — Convert a binary string to number
plot() — Plot data to the output window

Classes

quantum_circuit — This class models a quantum circuit, providing gate operations, quantum states, probabilities, quantum phases, expectation values, measurements, etc.

Member Functions
- construct() — The constructor. Create an instance of class quantum_circuit
- apply_controlled_gate() — Apply controlled-Hermitian gate to the circuit
- apply_gate() — Apply Hermitian gate to the circuit
- barrier() — Add a barrier to the circuit
- bits() — Get total number of classical bits of the circuit
- ccx() — Apply \(CCX\) (also known as Toffoli) gate to the circuit
- classical_bits() — Get the measured classical bits
- And 42 more member functions

Note

The documentation for matrix and complex number operations (e.g. transpose(), conjugate(), matrix multiplication) can be found here: https://dinfio.org/docs/reference/neural.

Examples

import quantum
 
qc = quantum_circuit(2)
 
qc.h(0)
qc.cx(0, 1)
 
qc.print_statevector()
qc.print_probability()
qc.draw()

' Example output:
'
' [ 0.707107 + 0i
'          0 + 0i
'          0 + 0i
'   0.707107 + 0i ]
' [ 0.5
'     0
'     0
'   0.5 ]
'     ╭───╮         
' q0 ─┤ H ├───●───  
'     ╰───╯   │     
'           ╭─┴─╮   
' q1 ───────┤ X ├─  
'           ╰───╯

Availability

This module is only available on Dinfio version 3.2.01 or later

Module quantum