Quantum computing has seen remarkable progress over the past few decades despite facing tremendous conceptual, theoretical, and technical challenges. Recent realization of hundred superconducting qubits demonstrates “quantum advantage” and shows how difficult it is to scale the number of qubits. Excellent scientists and engineers with gigantic funding are solving the scaling problem. It is well noted that different technologies are needed to enable scaling of solid-state qubits at different scaling factors. One of the critical bottlenecks of archiving hundreds of thousands of qubits is the cryogenic radio frequency (RF) electronics.
Superconducting and semiconducting (or spin) qubits typically operate at millikelvin temperatures. To enable the smooth operation of such qubits, additional RF components must be brought to low temperatures. Currently, a lot of passive electronics are already functioning well at cryogenic temperatures. Some active components like low noise amplifiers and couplers do work at 4K and below and are not yet a limiting factor in terms of heat load and space. All of this might work for the qubit count to one thousand physical qubits. A technologically new approach must take place to enable more than thousand physical qubits in a single quantum computer.
Quantum Logic is creating the foundation for enabling the scaling number of qubits towards hundreds of thousands by introducing a multiplexing technology into the cryogenic system. :
For more details consult at info@theqlogic.com