A new way for quantum computing systems to keep their cool

MIT News  February 21, 2023 To overcome errors in the qubits due to heat in quantum systems, researchers at MIT developed a wireless communication system that enables a quantum computer to send and receive data to and from electronics outside the refrigerator using high-speed terahertz waves. A transceiver chip, cryostat, placed inside the fridge sends and receives data from a terahertz wave source outside the cryostat using backscatter. An array of antennas on top of the chip, each of which is only about 200 micrometers in size, act as tiny mirrors. These mirrors can be “turned on” to reflect waves […]