Magnetic Molecule Qubits: Chemistry as Hardware
Magnetic molecules can act as qubits whose properties chemists can tune. Spin dynamics, coherence times, applications and recent advances.
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Quantum Hall Effect Devices and Resistance Standards
Quantum Hall devices give resistance values fixed by fundamental constants, which is why they define resistance standards. Physics and uses.
Solid-State NMR Quantum Computing Explained
Solid-state NMR quantum computing encodes qubits in nuclear spins in crystals. Its advantages over liquid NMR, challenges and prospects.
Liquid-State NMR Quantum Computing and Its Ceiling
Liquid-state NMR ran the first small quantum algorithms using nuclear spins in molecules. How it worked and why it cannot scale far.
Coupled Quantum Dots and Two-Qubit Gates
Coupled quantum dots let electrons tunnel between neighboring dots, which enables two-qubit gates. Formation, phenomena and applications.
Flux Qubits: Superconducting Loops as Quantum Bits
Flux qubits encode information in the direction of current in a superconducting loop. Their principle, noise sources and comparison with others.
Quantum Transistors: Switching One Electron at a Time
Single-electron and quantum transistors switch using tunneling and discrete charge. How they work, their applications and challenges.
Adiabatic Quantum Computers: The Machines Themselves
Adiabatic quantum computers solve problems by slowly evolving a system in its ground state. Principles, comparison with gate models and uses.
Topological Insulators: Conducting Only at the Edge
Topological insulators conduct along their surface or edges while insulating inside. Band inversion, Z2 invariants and uses in spintronics.
Graphene-Based Quantum Devices and Their Promise
Why graphene interests quantum device researchers: quantum dots, the quantum Hall effect, interference, spintronics and sensors.
Error Mitigation Techniques: ZNE, PEC and More
Error mitigation techniques compared, including zero-noise extrapolation, probabilistic error cancellation and dynamical decoupling.
Quantum Simulation of the Early Universe
How quantum simulation can model processes of the early universe, such as field dynamics and particle creation, and what remains out of reach.