Pure NQR Quantum Computing

It is shown that pure NQR can be utilized as a platform for quantum computing without applying a high external magnetic field. By exciting each resonance transition between quadrupole energy levels with two radio-frequency fields differing in phase and direction, the double degeneracy of the spin energy spectrum in an electric field gradient is removed. As an example, in the case of I = 7/2 (nuclei 133Cs or 123Sb) the energy spectrum has eight levels which can be used as three qubits.

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14N Quadrupole Resonance in the presence of a weak static magnetic field. Direct determination of the electric field gradient tensor

Chemical Physics Letters ◽

10.1016/j.cplett.2014.01.017 ◽

2014 ◽

Vol 594 ◽

pp. 13-17 ◽

Cited By ~ 2

Author(s):

Sarra Aissani ◽

Laouès Guendouz ◽

Daniel Canet

Keyword(s):

Magnetic Field ◽

Electric Field ◽

Electric Field Gradient ◽

Field Gradient ◽

Static Magnetic Field ◽

Direct Determination ◽

Electric Field Gradient Tensor ◽

Gradient Tensor ◽

Quadrupole Resonance

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Search for a Magnetic-Field Dependence of the Interaction of the Nuclear Quadrupole Moment with the Electric-Field Gradient

Journal of Magnetic Resonance ◽

10.1006/jmre.1997.1108 ◽

1997 ◽

Vol 125 (2) ◽

pp. 280-290 ◽

Cited By ~ 15

Author(s):

B. Filsinger ◽

P. Gutsche ◽

U. Haeberlen ◽

N. Weiden

Keyword(s):

Magnetic Field ◽

Electric Field ◽

Electric Field Gradient ◽

Field Gradient ◽

Quadrupole Moment ◽

Field Dependence ◽

Magnetic Field Dependence ◽

Nuclear Quadrupole Moment ◽

Nuclear Quadrupole

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Effect of a weak static magnetic field on nitrogen-14 quadrupole resonance in the case of an axially symmetric electric field gradient tensor

Solid State Nuclear Magnetic Resonance ◽

10.1016/j.ssnmr.2013.10.001 ◽

2013 ◽

Vol 55-56 ◽

pp. 84-90 ◽

Cited By ~ 3

Author(s):

Laouès Guendouz ◽

Sarra Aissani ◽

Jean-François Marêché ◽

Alain Retournard ◽

Pierre-Louis Marande ◽

...

Keyword(s):

Magnetic Field ◽

Electric Field ◽

Electric Field Gradient ◽

Field Gradient ◽

Static Magnetic Field ◽

Electric Field Gradient Tensor ◽

Axially Symmetric ◽

Gradient Tensor ◽

Quadrupole Resonance

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Addendum to: Determination of the electric field gradient and the magnetic field in Mössbauer spectroscopy

The European Physical Journal B ◽

10.1140/epjb/e2019-100338-6 ◽

2019 ◽

Vol 92 (8) ◽

Author(s):

Krzysztof R. Szymański

Keyword(s):

Magnetic Field ◽

Mössbauer Spectroscopy ◽

Electric Field ◽

Electric Field Gradient ◽

Field Gradient ◽

Mossbauer Spectroscopy ◽

Mößbauer Spectroscopy ◽

The Magnetic Field

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Messungen an Fe57 in Calciumaluminatferriten mit Hilfe des Mößbauer-Effekts

Zeitschrift für Naturforschung A ◽

10.1515/zna-1966-0624 ◽

1966 ◽

Vol 21 (6) ◽

pp. 831-835 ◽

Cited By ~ 2

Author(s):

F. Wittmann ◽

F. Pobell

Keyword(s):

Magnetic Field ◽

Electric Field ◽

Electric Field Gradient ◽

Field Gradient ◽

Calcium Aluminate ◽

Isomeric Shift ◽

Temperature Range ◽

Octahedral Sites ◽

The Magnetic Field ◽

Curie Temperatures

Measurements of the MÖSSBAUER-effect were made on Calcium-Aluminate-Ferrites [2 CaO · (Al2O3) x · (Fe2O3) 1-x] in the temperature range 4.2 °K ≦ Τ ≦ 700 °K. Ferrites with x=0, 1/3, 1/2 were made by sintering. The isomeric-shift is the same for the three ferrites, whereas the quadrupol-splitting is a function of x : ε1 (x=0) = (1.38 ± 0.05) mm/sec, ε2 (x=⅓) = (1.44 ± 0.05) mm/sec, ε3 (x =½) = (1.64 ± 0.05) mm/sec. The CURIE temperatures are Θ1 = (615 ± 4) °K, Θ2 = (490 ± 5) °K and Θ3= (398 ± 10) °K. For T=0 °K the extrapolated values of the magnetic field are independent of x : H0 (tet) = (505 ± 10) kOe and H0 (oct) = (555 ± 10) kOe at the tetrahedral and octahedral sites respectively. Under the assumption of an axial symmetric electric field gradient we calculated the angles between the electric field gradient and the magnetic field at the two lattice sites.

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