The Promise of Quantum Computing

Stefano Patarnello

Johanna L. Miller

Quantum computing promises greater efficiency than classical computing. Quantum communication promises tamper-proof security. Combine the two and you get blind quantum computing. <... Quantum computing promises greater efficiency than classical computing. Quantum communication promises tamper-proof security. Combine the two and you get blind quantum computing. <...

Jeremy J. Ramsden

Bagas Prabowo, Guoji Zheng, Mohammadreza Mehrpoo +9 more

Quantum computers (QC) promise to solve certain computational problems exponentially faster than a classical computer due to the superposition and entanglement properties of quantum bits (qubits). Among several qubit technologies, spin qubits are a promising candidate for large-scale QC, since (1) they have a small footprint allowing them to be densely integrated and (2) they can operate at relatively high temperatures (>1K) [1], potentially reducing system cost and complexity.

Ahmed El-Mahdy

While quantum computing is showing strong promise, there is dismay about its current practical capabilities. After giving a quick introduction to quantum computing, this talk aims to highlight existing promising approaches in quantum computing that are starting to demonstrate a quantum advantage. We start with the quantum variational principle and variational circuits. We will discuss their utility in solving the ground-level energy that is used in many applications in computational chemistry, as well as their use in quantum neural networks. We then move into quantum optimisation using adiabatic quantum annealing, and the newly more promising counterdiabatic quantum computing. We then move into provably secure quantum communication. We conclude with quantum ghost imaging, showing how picturing an object without seeing it results in better quality!

Madhusudan Singh Irish Singh, Bharat S. Rawal