Quantum Process Estimation and Gate Fidelity
Quantum process estimation characterizes what a quantum operation actually does. Process tomography, gate fidelity and randomized benchmarking.
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Majorana Qubits: Topological Protection in Hardware
Majorana qubits would store information non-locally in pairs of Majorana zero modes. Their structure, braiding, and the state of the evidence.
Rydberg Atom Qubits and Their Strong Interactions
Rydberg atoms have highly excited electrons that interact strongly over micrometers. How this enables fast two-qubit gates in atom arrays.
Bosonic Qubits: Encoding in an Oscillator
Bosonic qubits store information in the many levels of an oscillator, such as a microwave cavity. Their principles, coherence and scalability.
Hybrid Quantum Systems: Joining Different Platforms
Hybrid quantum systems combine platforms, such as superconducting qubits with spins or photons, to use each one’s strengths. Types and challenges.
Surface Acoustic Wave Qubits and Phonon Coupling
Surface acoustic wave devices can carry quantum information as phonons between qubits. How SAW qubits and couplings work, and their prospects.
Neutral Atom Quantum Computing: How It Scales
Neutral atom quantum computers hold atoms in optical tweezers and entangle them via Rydberg states. How they work and why they scale well.
Donor-Based Quantum Computing in Silicon
Donor-based quantum computing uses single phosphorus or other donor atoms in silicon as qubits. How they are placed, controlled and scaled.
Electron Spin Resonance Qubits, Explained
Electron spin resonance qubits are controlled with microwave pulses. How spin manipulation works, coherence techniques and current challenges.
Silicon-Based Quantum Computing and Its Advantage
Silicon qubits could reuse chip-industry manufacturing. How spin qubits in silicon work, their advantages and the coherence and control challenges.
Quantum Acoustic Devices: Sound at the Single Phonon
Quantum acoustics controls sound at the level of single phonons. How acoustic devices couple to qubits and what applications are proposed.
Cavity Quantum Electrodynamics: Light in a Box
Cavity quantum electrodynamics studies atoms interacting with light trapped between mirrors. Strong coupling, Rabi splitting and uses in computing.