Shallow donor qubits in ZnO for quantum memory applications

Author(s):  
Christian Zimmermann ◽  
Vasilis Niaouris ◽  
Maria L. Viitaniemi ◽  
Kai-Mei C. Fu
2010 ◽  
Vol 57 (19) ◽  
pp. 1833-1840 ◽  
Author(s):  
I.M. Sokolov ◽  
D.V. Kupriyanov ◽  
R.G. Olave ◽  
M.D. Havey

Entropy ◽  
2020 ◽  
Vol 22 (9) ◽  
pp. 1007
Author(s):  
Rahmat Ullah ◽  
Byoung S. Ham

A double rephasing scheme of a photon echo is analyzed for inversion-free photon echo-based quantum memories using controlled Rabi flopping, where the Rabi flopping is used for phase control of collective atom coherence. Unlike the rephasing-caused π-phase shift in a single rephasing scheme, the control Rabi flopping between the excited state and an auxiliary third state induces coherence inversion. Thus, the absorptive photon echo in a double rephasing scheme can be manipulated to be emissive. Here, we present a quantum coherence control of atom phases in a double rephasing photon echo scheme for emissive photon echoes for quantum memory applications.


2020 ◽  
Vol 37 (6) ◽  
pp. 1653
Author(s):  
Peng-Jun Liang ◽  
Xiao Liu ◽  
Pei-Yun Li ◽  
Zong-Quan Zhou ◽  
Chuan-Feng Li ◽  
...  

2012 ◽  
Vol 85 (11) ◽  
Author(s):  
B. Lauritzen ◽  
N. Timoney ◽  
N. Gisin ◽  
M. Afzelius ◽  
H. de Riedmatten ◽  
...  

Author(s):  
Jun Yang ◽  
Haitao Zhang ◽  
Stuart Gray ◽  
Thomas D. Ketcham ◽  
Daniel A. Nolan

Author(s):  
V. Saikumar ◽  
H. M. Chan ◽  
M. P. Harmer

In recent years, there has been a growing interest in the application of ferroelectric thin films for nonvolatile memory applications and as a gate insulator in DRAM structures. In addition, bulk ferroelectric materials are also widely used as components in electronic circuits and find numerous applications in sensors and actuators. To a large extent, the performance of ferroelectric materials are governed by the ferroelectric domains (with dimensions in the micron to sub-micron range) and the switching of domains in the presence of an applied field. Conventional TEM studies of ferroelectric domains structures, in conjunction with in-situ studies of the domain interactions can aid in explaining the behavior of ferroelectric materials, while providing some answers to the mechanisms and processes that influence the performance of ferroelectric materials. A few examples from bulk and thin film ferroelectric materials studied using the TEM are discussed below.Figure 1 shows micrographs of ferroelectric domains obtained from undoped and Fe-doped BaTiO3 single crystals. The domain boundaries have been identified as 90° domains with the boundaries parallel to <011>.


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