Quantum network with single-atoms and cavities: a tool for distributed quantum computing
CIC nanoGUNE Seminars
- Speaker
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Emanuele Distante, Max Planck Institute of Quantum Optics, Garching, Germany
- When
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2022/07/28
13:00 - Place
- nanoGUNE seminar room, Tolosa Hiribidea 76, Donostia - San Sebastian
- Add to calendar
-
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**Quantum network with single-atoms and cavities: a tool for distributed
quantum computing**
Emanuele Distante
Max Planck Institute of Quantum Optics, Garching, Germany
The development of quantum computers relies on the ability to individually
control and mutually couple a large number of qubits. Despite recent progress,
scaling up the number of controllable qubits is a major experimental challenge
due to residual cross-talks between the qubits, coupling constraints and
restricted space. A possible solution could be to connect different quantum
computing modules, each containing a limited but controllable number of
qubits, on a quantum network which could then be operated as if it was a
single quantum machine.
In this talk I will discuss a prominent platform to realize such a distributed
quantum machine: single neutral atoms trapped at the center of high-finesse
optical cavities. The atoms function as stationary qubits which allows for
local quantum information processing, while the cavity allows to interface the
stationary qubits with single-photons. Photons can then fly into optical fiber
connecting multiple cavities and effectively connecting stationary qubits
located at different network nodes. Within this context, I will discuss our
recent results which demonstrate the use of this platform to transfer quantum
information as well as to implement a first rudimental example of distributed
quantum computing: a logic gate between distant qubits.
**Host:** J. M. Pitarke