All new technologies have drawbacks. None more so than quantum computing. This could revolutionise finance through superfast risk modelling and deal processing. Banks such as Barclays, BBVA and Goldman Sachs are investing in research alongside venture capitalists.
Equally, quantum computers might fatally damage unwary organisations if gangsters and rogue states use them to decrypt communications.
The duality is apt. The technology aims to harness the quantum-level capacity of matter to simultaneously express states that would normally be mutually exclusive. Linear increases in qubits — equivalent to conventional bits — could produce exponential rises in processing power.
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