scholarly journals Quantum Correlations between Single Telecom Photons and a Multimode On-Demand Solid-State Quantum Memory

2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Alessandro Seri ◽  
Andreas Lenhard ◽  
Daniel Rieländer ◽  
Mustafa Gündoğan ◽  
Patrick M. Ledingham ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Correlations ◽  
Quantum Memory ◽  
On Demand

scholarly journals Entanglement between a Telecom Photon and an On-Demand Multimode Solid-State Quantum Memory

2021 ◽  
Vol 127 (21) ◽  
Author(s):  
Jelena V. Rakonjac ◽  
Dario Lago-Rivera ◽  
Alessandro Seri ◽  
Margherita Mazzera ◽  
Samuele Grandi ◽  
...  
Keyword(s):  
Solid State ◽  
Quantum Memory ◽  
On Demand

scholarly journals Nanopore design for exceptional rectification of DNA translocation

2021 ◽  
Author(s):  
Ngan Pham ◽  
Yao Yao ◽  
Chenyu Wen ◽  
Shiyu Li ◽  
Shuangshuang Zeng ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Solid State ◽  
Surface Charge ◽  
Dna Translocation ◽  
Sensor Applications ◽  
Sensor Performance ◽  
On Demand ◽  
Dna Strands ◽  
Large Opening ◽  
Shape And Size

Abstract Solid-state nanopores (SSNPs) of on-demand shape and size can facilitate desired sensor performance. However, reproducible production of arrayed nanopores of predefined geometry is yet to demonstrate despite of numerous methods explored. Here, bowl-shape SSNPs combining unique properties of ultrathin membrane and tapering geometry are demonstrated. The bowl-SSNP upper opening is 100-120 nm in diameter, with the bottom opening reaching sub-5 nm. Numerical simulation reveals the formation of multiple electroosmotic vortexes (EOVs) originating from distributed surface charge around the pore-bowl. The EOVs determine, collaboratively with electrophoretic force, how nanoscale objects translocate the bowl-SSNPs. Exceptional rectification with higher frequencies, longer duration and larger amplitude is found when DNA strands translocate downwards from the upper large opening than upwards from the bottom smallest restriction. The rectification is a manifestation of the interplay between electrophoresis and electroosmosis. The resourceful silicon nanofabrication technology is ingeniously shown to enable innovative nanopore designs targeting unprecedented sensor applications.

scholarly journals A single-photon switch and transistor enabled by a solid-state quantum memory

Science ◽  
2018 ◽  
Vol 361 (6397) ◽  
pp. 57-60 ◽  
Author(s):  
Shuo Sun ◽  
Hyochul Kim ◽  
Zhouchen Luo ◽  
Glenn S. Solomon ◽  
Edo Waks
Keyword(s):  
Solid State ◽  
Quantum Information Processing ◽  
Single Photon ◽  
Internal State ◽  
Optical Signal ◽  
Quantum Memory ◽  
Strong Interactions ◽  
Strongly Coupled ◽  
Spin Qubit ◽  
Photon Interactions

Single-photon switches and transistors generate strong photon-photon interactions that are essential for quantum circuits and networks. However, the deterministic control of an optical signal with a single photon requires strong interactions with a quantum memory, which has been challenging to achieve in a solid-state platform. We demonstrate a single-photon switch and transistor enabled by a solid-state quantum memory. Our device consists of a semiconductor spin qubit strongly coupled to a nanophotonic cavity. The spin qubit enables a single 63-picosecond gate photon to switch a signal field containing up to an average of 27.7 photons before the internal state of the device resets. Our results show that semiconductor nanophotonic devices can produce strong and controlled photon-photon interactions that could enable high-bandwidth photonic quantum information processing.

Towards long distance entanglement between a photon and a solid-state multimode quantum memory (Conference Presentation)

2020 ◽  
Author(s):  
Jelena Rakonjac ◽  
Dario Lago-Rivera ◽  
Samuele Grandi ◽  
Alessandro Seri ◽  
Hugues de Riedmatten
Keyword(s):  
Solid State ◽  
Quantum Memory ◽  
Long Distance

Quantum correlations and quantum-memory-assisted entropic uncertainty relation in two kinds of spin squeezing models

2019 ◽  
Vol 16 (9) ◽  
pp. 095202 ◽  
Author(s):  
Saeed Haddadi ◽  
Mohammad Reza Pourkarimi ◽  
Ahmad Akhound ◽  
Mehrdad Ghominejad
Keyword(s):  
Uncertainty Relation ◽  
Quantum Correlations ◽  
Spin Squeezing ◽  
Quantum Memory ◽  
Entropic Uncertainty Relation

Time evolution of quantum-memory-assisted entropic uncertainty relation and quantum correlations under dissipative environment

2019 ◽  
Vol 17 (01) ◽  
pp. 1950008 ◽  
Author(s):  
Mohammad Reza Pourkarimi
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Time Evolution ◽  
Uncertainty Relation ◽  
Quantum Correlations ◽  
Quantum Memory ◽  
Xy Model ◽  
Anisotropic Parameter ◽  
Entropic Uncertainty Relation ◽  
Dissipative Environment

By assuming the effect of dissipative environment and the Hamiltonian XY-model and external magnetic field, the time evolution of the entropic uncertainty relation (EUR) in the presence of quantum-memory and the dynamics of quantum correlations (QC) are investigated. It is shown that EUR and QC may evolve in different ways during the time. However, they can behave similarly when the time tends to infinity. The effects of external magnetic field and anisotropic parameter are different on the dynamics of EUR and QC.

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