The quantum bit or qubit is the elementary unit that can carry quantum information.


A qubit is a binary quantum state. The state can be well-determined (blue, orange) or undetermined (in superposition).


When two qubits are in a state where measuring one qubit can affect the result of measuring the other qubit,

Quantum operations

Quantum computation consists of applying a sequence of elementary quantum operations to qubits.


Quantum circuits depict the sequence of operations applied to qubits in the course of a quantum computation.


Quantum communication takes place via standard optical fibers carrying photons.

Poster QIP 2023

Best poster prize at QIP 2023.

Coming soon: Quantum interference

Interference is the key to understanding the difference between quantum computing and randomized computing.

Coming soon: Quantum nonlocality

We demystify what Einstein referred to as “spooky action at a distance”.