Josephson-phase qubit without tunneling
arXiv:cond-mat/0211638 · doi:10.1103/PhysRevB.67.100508
Abstract
We show that a complete set of one-bit gates can be realized by coupling the two logical states of a phase qubit to a third level (at higher energy) using microwave pulses. Thus, one can achieve coherent control without invoking any tunneling between the qubit levels. We propose two implementations, using rf-SQUIDs and d-wave Josephson junctions.
arXiv commentREVTeX4, 4pp., 6 EPS figure files; N.B.: "Alec" is my first, and "Maassen van den Brink" my family name. v2: gate universality fleshed out, small fix in d-wave decoherence para, discussion expanded, two Refs. added. v3: some more Refs., a molecular example, and a few minor fixes; final, to appear in PRB Rapids
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- Design of a Lambda system for population transfer in superconducting nanocircuits
- Persistent single-photon production by tunable on-chip micromaser with a superconducting quantum circuit
- Realization of an n-qubit controlled-U gate with superconducting quantum interference devices or atoms in cavity QED
- Probing Decoherence with Electromagnetically Induced Transparency in Superconductive Quantum Circuits
- Electromagnetically induced transparency in superconducting quantum circuits : Effects of decoherence, tunneling and multi-level cross-talk
- Rabi oscillations in the four-level double-dot structure under the influence of the resonant pulse
- Polariton states in circuit QED for electromagnetically induced transparency
- Advanced control with a Cooper-pair box: stimulated Raman adiabatic passage and Fock-state generation in a nanomechanical resonator
- Multilevel effects in the Rabi oscillations of a Josephson phase qubit
- Quantum controlled phase gate and cluster states generation via two superconducting quantum interference devices in a cavity
- Realization of universal quantum cloning with SQUID qubits in a cavity
- Spin-Weyl quantum unit: theoretical proposal
- Quantum logical gates with four-level SQUIDs coupled to a superconducting resonator
- Charge qubit rotations in a double-dot nanostructure
- Simplified Approach to Implementing Controlled-Unitary Operations in a Two-Qubit System
- Resonant optical electron transfer in one-dimensional multiwell structures
- Sensitivity to parameters of STIRAP in a Cooper-Pair Box
- Fine tuning of quantum operations performed via Raman transitions
- Auxiliary-level-assisted operations with charge qubits in semiconductors
- On wireless connection between Josephson qubits
- On the analogy between the classical wave optics and the quantum wave phenomena