Large-scale reconfigurable continuously-coupled integrated optical circuits for photonic quantum information processing

2021 ◽  
Author(s):  
Francesco Hoch ◽  
Simone Piacentini ◽  
Taira Giordani’ ◽  
Zhen-Nan Tian ◽  
Mariagrazia Iuliano ◽  
...  
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Large Scale ◽  
Quantum Information Processing ◽  
Integrated Optical ◽  
Optical Circuits ◽  
Integrated Optical Circuits

scholarly journals DECOHERENCE-FREE QUANTUM MEMORY FOR PHOTONIC STATE USING ATOMIC ENSEMBLES

2009 ◽  
Vol 07 (04) ◽  
pp. 811-820 ◽  
Author(s):  
FENG MEI ◽  
YA-FEI YU ◽  
ZHI-MING ZHANG
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Large Scale ◽  
Quantum Information Processing ◽  
Single Photon ◽  
Quantum Memory ◽  
Single Photon Detection ◽  
Atomic Ensembles ◽  
Optical Elements ◽  
Photonic State

Large scale quantum information processing requires stable and long-lived quantum memories. Here, using atom-photon entanglement, we propose an experimentally feasible scheme to realize decoherence-free quantum memory with atomic ensembles, and show one of its applications, remote transfer of unknown quantum state, based on laser manipulation of atomic ensembles, photonic state operation through optical elements, and single-photon detection with moderate efficiency. The scheme, with inherent fault-tolerance to the practical noise and imperfections, allows one to retrieve the information in the memory for further quantum information processing within the reach of current technology.

Integrated optical approach to trapped ion quantum computation

2009 ◽  
Vol 9 (3&4) ◽  
pp. 181-202
Author(s):  
J. Kim ◽  
C. Kim
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Information Processing ◽  
Quantum Computer ◽  
Fault Tolerant ◽  
Trapped Ions ◽  
Physical Realization ◽  
Trapped Ion ◽  
Integrated Optical ◽  
The Physical Realization

Recent experimental progress in quantum information processing with trapped ions have demonstrated most of the fundamental elements required to realize a scalable quantum computer. The next set of challenges lie in realization of a large number of qubits and the means to prepare, manipulate and measure them, leading to error-protected qubits and fault tolerant architectures. The integration of qubits necessarily require integrated optical approach as most of these operations involve interaction with photons. In this paper, we discuss integrated optics technologies and concrete optical designs needed for the physical realization of scalable quantum computer.

scholarly journals CONSTRUCTING 2D AND 3D CLUSTER STATES WITH PHOTONIC MODULES

2010 ◽  
Vol 08 (01n02) ◽  
pp. 149-159 ◽  
Author(s):  
RADU IONICIOIU ◽  
WILLIAM J. MUNRO
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Quantum Computation ◽  
Large Scale ◽  
Quantum Information Processing ◽  
Quantum Repeater ◽  
Cluster States ◽  
Optical Processor ◽  
Quantum Optical ◽  
2D And 3D

Large-scale quantum information processing and distributed quantum computation require the ability to perform entangling operations on a large number of qubits. We describe a new photonic module which prepares, deterministically, photonic cluster states using an atom in a cavity as an ancilla. Based on this module, we design a network for constructing 2D cluster states and then we extend the architecture to 3D topological cluster states. Advantages of our design include a passive switching mechanism and the possibility of using global control pulses for the atoms in the cavity. The architecture described here is well-suited for integrated photonic circuits on a chip and could be used as a basis of a future quantum optical processor or in a quantum repeater node.

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