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A hybrid-systems approach to spin squeezing using a highly dissipative ancillary system
Shane Dooley, Emi Yukawa, Yuichiro Matsuzaki +3
Squeezed states of spin systems are an important entangled resource for quantum technologies, particularly quantum metrology and sensing. Here we consider the generation of spin sq…
Engineering Long-Lived Collective Dark States in Spin Ensembles
Stefan Putz, Andreas Angerer, Dmitry O. Krimer +5
Ensembles of electron spins in hybrid microwave systems are powerful and versatile components for future quantum technologies. Quantum memories with high storage capacities are one…
Absorption-based Quantum Communication with NV centres
Burkhard Scharfenberger, Hideo Kosaka, William J. Munro +1
We propose a scheme for performing an entanglement-swapping operation within a quantum communications hub (a Bell like measurement) using an NV centre's $|\pm 1\rangle \leftrightar…
Spin Amplification with Inhomogeneous Broadening
Suguru Endo, Yuichiro Matsuzaki, William J. Munro +1
A long-lived qubit is usually well-isolated from all other systems and the environments, and so is not easy to couple with measurement apparatus. It is sometimes difficult to imple…
Optimal Trotterization in universal quantum simulators under faulty control
George C. Knee, William J. Munro
Universal quantum simulation may provide insights into those many-body systems that cannot be described classically, and that cannot be efficiently simulated with current technolog…
Scalable quantum computation architecture using always-on Ising interactions via quantum feedforward
Takahiko Satoh, Yuichiro Matsuzaki, Kosuke Kakuyanagi +4
Here, we propose a way to control the interaction between qubits with always-on Ising interaction. Unlike the standard method to change the interaction strength with unitary operat…