A large millikelvin platform at Fermilab for quantum computing applications

Abstract

The need for larger mK cooling platforms is being driven by the desire to host ever growing numbers of cryogenic qubits in quantum computing platforms. As part of the Superconducting Quantum Materials and Systems Center at Fermilab funded through the Department of Energy under the National Quantum Initiative, we are developing a cryogenic platform capable of reaching millikelvin temperatures in an experimental volume of 2 meters diameter by approximately 1.5 meters in height. The platform is intended to host a threedimensional qubit architecture based on superconducting radiofrequency accelerator cavity technologies. This paper describes the baseline design of the platform, along with the expected key performance parameters.

Towards Quantum Computing with Molecular Electronics

“…While noise can be managed using quantum error correction [5], doing so will require redundant encoding of the information, thus further reducing the effective size of the algorithms that can be run on the hardware. For this reason, much work is currently ongoing on how to scale up leading types of quantum hardware [6,7] while dealing with the resulting challenges, such as loss [8,9], crosstalk [10,11], input/output bottlenecks [12][13][14] and the implementation of large-scale cryogenics [15,16]. The type and severity of the challenges faced will be different from architecture to architecture.…”