Quantum Computing

This repository contains some notes regarding quantum computation. The main objective of this software is to generate a data model in the form of library components that best represents (simulates) quantum objects using the Scala programming language.

Requirements

You'll need at least the following software dependencies in order to run this examples:

Java 8 or superior.
- For debian-based systems: sudo apt install openjdk-8-jdk
Scala Build Tool (SBT)
- Download for all platforms here.

If you are using Windows 10, we recommend running this software on the Windows Subsystem for Linux (WSL).

Usage

You can run the provided examples on the examples package.

Quantum Entanglement with Bell State 00
- sbt "run com.hdzco.quantumcomputing.simulation.examples.BellEntanglement"

Standalone Example

import com.hdzco.quantumcomputing.simulation.{Gate, QuantumSystem, Transformation}

object Example extends App {
  
  val qubitA = QuantumSystem.Qubit.zero // This is a Qubit(1,0)
  val qubitB = QuantumSystem.Qubit.one  // This is a Qubit(0,1)
  val qubitC = QuantumSystem.Qubit.random // This is a phi-state Qubit.
  
  // Create custom qubits
  val qubitD = QuantumSystem.Qubit(0.7, 0.3)
  
  // Materialize/collapse qubits
  val collapsed: Transformation.Collapsed = Transformation.collapse(qubitD)
  println(collapsed.qubit) // Should be Qubit(1,0) or Qubit(0,1)
  
  // Create a list of qubits and count the collapsed results
  val qubitList: List[QuantumSystem.Qubit] = List.fill(10000)(QuantumSystem.Qubit(0.9, 0.1))
  val (zero, one) = qubitList.map(q => Transformation.collapse(q).qubit) partition (_.a > 0.9)
  println(s"zero-state qubits: ${zero.length / 10000.0} %")
  println(s"one-state  qubits: ${one.length / 10000.0} %")
}

Tests

The tests are used in order to evaluate the correctness of the program. We try to evaluate the derived properties of the software with common examples.

Relevant tests:

Bell States Test
- src/test/scala/com/hdzco/quantumcomputing/simulation/BellStates.scala

Authors and contributions

Feel free to contribute to this project. Open a PR or an issue if needed.

Contact the authors for more information:

License

See the LICENSE.md file.