Entangling unstable optically active matter qubits
نویسندگان
چکیده
منابع مشابه
Strategies for Entangling Remote Spins with Unequal Coupling to an Optically Active Mediator
We demonstrate that two remote qubits can be entangled through an optically active intermediary even if the coupling strengths between mediator and qubits are different. This is true for a broad class of interactions. We consider two contrasting scenarios. First, we extend the analysis of a previously studied gate operation which relies on pulsed, dynamical control of the optical state and whic...
متن کاملEntangling superconducting qubits in a multi-cavity system
Important tasks in cavity quantum electrodynamics include the generation and control of quantum states of spatially separated particles distributed in different cavities. An interesting question in this context is how to prepare entanglement among particles located in different cavities, which are important for large-scale quantum information processing.We here consider amulti-cavity system whe...
متن کاملAnalytical approach to swift nonleaky entangling gates in superconducting qubits
We develop schemes for designing pulses that implement fast and precise entangling quantum gates in superconducting qubit systems despite the presence of nearby harmful transitions. Our approach is based on purposely involving the nearest harmful transition in the quantum evolution instead of trying to avoid it. Using analytical tools, we design simple microwave control fields that implement ma...
متن کاملMaximally entangling tripartite protocols for Josephson phase qubits
Superconducting circuits with Josephson junctions have attracted considerable attention as promising candidates for scalable solid-state quantum computing architectures. The story began in the early 1980’s, when Tony Leggett made a remarkable prediction that under certain experimental conditions the macroscopic variables describing such circuits could exhibit a characteristically quantum behavi...
متن کاملOptically Driven Qubits in Artificial Molecules
We present novel models of quantum gates based on coupled quantum dots in which a qubit is regarded as the superposition of ground states in each dot. Coherent control on the qubit is performed by both a frequency and a polarization of a monochromatic light pulse illuminated on the quantum dots. We also show that a simple combination of two single qubit gates functions as a controlled NOT gate ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2011
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.83.060303