Superconducting Qubits: A Short Review

By Michel H. Devoret, Andreas Wallraff, John M. Martinis. 2004

301 citations recorded by the source corpus.

Superconducting qubits are solid state electrical circuits fabricated using techniques borrowed from conventional integrated circuits. They are based on the Josephson tunnel junction, the only non-dissipative, strongly non-linear circuit element available at low temperature. In contrast to microscopic entities such as spins or atoms, they tend to be well coupled to other circuits, which make them appealling from the point of view of readout and gate implementation. Very recently, new designs of superconducting qubits based on multi-junction circuits have solved the problem of isolation from unwanted extrinsic electromagnetic perturbations. We discuss in this review how qubit decoherence is affected by the intrinsic noise of the junction and what can be done to improve it.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Condensed Matter Physics

View Paper: https://www.semanticscholar.org/paper/0487698c9807b426124caa81fec6fadc8566fd27

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Quantum Chemistry in the Age of Quantum Computing. (2018, methodology): “ density matrix renormalization group method (DMRG)100{109. Specically, DMRG variationally optimizes a wave function in the form of a matrix product state (MPS)110: j MPSi= X fg A 1A 2 A nj 1 2 ni; (9) which is a one-dimensional chain of tensors. In the quantum chemistry setting, irepresents the loc”
Quantum information processing with superconducting circuits: a review (2016, background): “The energy levels form bands E(ng) in the ‘momentum’ direction [22, 25].”
Decoherence in solid-state qubits (2008, background): “Several types of superconducting qubits based on Josephson junctions have been so far theoretically proposed and experimentally realized (for comprehensive reviews see [79,80]).”
Stimulated Raman adiabatic passage in physics, chemistry, and beyond (2016, background): “Superconducting qubits based on the Josephson tunnel junction have emerged as a promising physical platform for quantum computation (Devoret et al., 2004; Makhlin et al., 2001; You and Nori, 2011).”
Between classical and quantum (2005, background): “The experimental realization of Schrödinger's cat is nearer than most physicists would feel comfortable with (Leggett, 2002; Brezger et al., 2002; Chiorescu et al., 2003; Marshall et al., 2003; Devoret et al., 2004).”
Introduction to quantum electromagnetic circuits (2016, background): “In addition to charge noise and flux noise, we are also considering the critical current noise dealt with in [38].”
Qubit allocation (2018, unknown): “In particular, quantum computers based on superconducting qubit technology are made of solid-state circuits that only allow local interactions between qubits that are physically connected [12, 23].”