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Technologies Used in Development of Qubits

Here are some of the most common types of technologies being pursued in the development of Qubits:

Superconducting qubits: Superconducting qubits are based on the behavior of electrical circuits cooled to very low temperatures. They are currently the most widely used qubits in quantum computers and have shown promising results in terms of scalability and performance.

Some of the companies pursuing QC using superconducting qubits are Rigetti, Anyon Systems, Bleximo, Atlantic Quantum Computing and Oxford Quantum Circuits.

Ion trap qubits: Ion trap qubits use ions trapped in magnetic fields as the qubits. They have the potential for long coherence times and high accuracy, but are currently limited in terms of scalability.

Some companies pursuing Ion trapped technology are Quantinuum, IonQ, Apline Quantum Technologies, Oxford Ionics, EleQtron and Honeywell

Silicon spin qubits: Silicon spin qubits are based on the spin of electrons in silicon. They have shown promising results in terms of scalability and coherence times, but are still in the early stages of development.

These companies are developing quits using Silicon spin technology: Quantum Motion, Silicon Quantum Computing, Equal1 Laboratories and Photonic Inc.

Topological qubits: Topological qubits use the properties of topological materials to protect qubits from decoherence and errors. They have the potential for long coherence times and high accuracy, but are still in the early stages of development. Microsoft is doing research into developing QC using topological qubits.

Photonic qubits: Photonic qubits use photons to encode quantum information. They have the potential for long-distance communication and high accuracy, but are currently limited in terms of scalability.

Xanadu Quantum Technologies, ORCA Computing, PsiQuantum, TundraSystems Global, Quandela and QuiX Quantum are developing QC using photonic qubit technology.

Majorana qubits: Majorana qubits are based on the properties of Majorana fermions, which are predicted to exist in certain materials. They have the potential for high stability and robustness, but are still in the early stages of development. At present we don't know of any companies pursuing the commercial use of Marjorana qubits as it is still very experimental.

Each type of qubit technology has its own strengths and weaknesses, and researchers are exploring multiple approaches to find the best way to build scalable and error-corrected quantum computers.