trapped ions
The Vacuum Trap: Why Atom and Ion Quantum Computers Chase Emptier-Than-Space Chambers
RafayelEvery quantum computer needs to keep the outside world away from its qubits. Superconducting chips do it with cold, sealing themselves inside a diluti...
The Atom Menu: Why Trapped-Ion Makers Argue Over Which Element to Use
Before a trapped-ion quantum computer can hold a single qubit, someone has to pick which atom to trap. It sounds like a footnote, but it is one of the...
The Reset Button: How a Quantum Computer Clears a Qubit
Before a quantum computer can do anything clever, it has to do something boring: put every qubit into a known starting state. Almost always that state...
The Ion Shuttle: How Quantum Computers Move Atoms to Compute
Most pictures of a quantum computer show qubits fixed in place, wired up like transistors on a circuit board. Trapped-ion machines built on a design c...
The Clock Speed Divide: Why Some Qubits Run a Thousand Times Faster
Ask two engineers to name the most important number in a quantum computer and you will get two answers. One will say coherence time, the other fidelit...
The SWAP Tax: When Qubits Can't Talk to Each Other
Picture a quantum processor as a small town where every qubit is a house, and the roads between houses are the only paths along which information can...
The Coherence Clock: The Race to Make Qubits Remember Longer
Ask a quantum hardware engineer what keeps them up at night and you will rarely hear about qubit counts. More often it is a single, stubborn number me...
The Trapped-Ion Edge: Why Floating Atoms Make Such Good Qubits
If you could shrink down and peer inside one of the quantum computers built by IonQ or Quantinuum, you would not see a chilled silicon chip humming wi...
Five Ways to Build a Qubit, and Why Nobody Has Won Yet
Ask ten engineers what a quantum computer should be made of and you may get ten different answers. Unlike the classical computing industry, which stan...