scholarly journals Tunnel splitting and quantum phase interference in biaxial ferrimagnetic particles at excited states

2001 ◽  
Vol 64 (13) ◽  
Author(s):  
Yi-Hang Nie ◽  
Yan-Hong Jin ◽  
J.-Q Liang ◽  
F.-C Pu
Keyword(s):  
Excited States ◽  
Quantum Phase ◽  
Tunnel Splitting ◽  
Phase Interference

scholarly journals Coherent manipulation and quantum phase interference in a fullerene-based electron triplet molecular qutrit

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Ye-Xin Wang ◽  
Zheng Liu ◽  
Yu-Hui Fang ◽  
Shen Zhou ◽  
Shang-Da Jiang ◽  
...  
Keyword(s):  
Quantum Information Processing ◽  
Quantum Phase ◽  
Information Storage ◽  
Paramagnetic Resonance ◽  
Molecular Electron ◽  
Phase Interference ◽  
Superposition States ◽  
Pulsed Electron Paramagnetic Resonance ◽  
Electron Paramagnetic ◽  
Coherent Manipulation

AbstractHigh-spin magnetic molecules are promising candidates for quantum information processing because their intrinsic multiplicity facilitates information storage and computational operations. However, due to the absence of suitable sublevel splittings, their susceptibility to environmental disturbances and limitation from the selection rule, the arbitrary control of the quantum state of a molecular electron multiplet has not been realized. Here, we exploit the photoexcited triplet of C70 as a molecular electron spin qutrit with pulsed electron paramagnetic resonance. We prepared the system into 3-level superposition states characteristic of a qutrit and validated them by the tomography of their density matrices. To further elucidate the coherence of the operation and the nature of the system as a qutrit, we demonstrated the quantum phase interference in the superposition. The interference pattern is further interpreted as a map of possible evolution paths in the space of phase factors, representing the quantum nature of the 3-level system.

scholarly journals Landau–Zener method to study quantum phase interference of Fe8 molecular nanomagnets (invited)

2000 ◽  
Vol 87 (9) ◽  
pp. 5481-5486 ◽  
Author(s):  
W. Wernsdorfer ◽  
R. Sessoli ◽  
A. Caneschi ◽  
D. Gatteschi ◽  
A. Cornia ◽  
...  
Keyword(s):  
Quantum Phase ◽  
Molecular Nanomagnets ◽  
Phase Interference

Effects of arbitrarily directed field on quantum phase interference in biaxial ferrimagnetic particles

2001 ◽  
Vol 282 (3) ◽  
pp. 215-221
Author(s):  
Yi-Hang Nie ◽  
J.-Q. Liang ◽  
Yan-Hong Jin ◽  
F.-C. Pu
Keyword(s):  
Quantum Phase ◽  
Phase Interference

scholarly journals Quantum phase interference for quantum tunneling in spin systems

2000 ◽  
Vol 61 (13) ◽  
pp. 8856-8862 ◽  
Author(s):  
J.-Q. Liang ◽  
H. J. W. Müller-Kirsten ◽  
D. K. Park ◽  
F.-C. Pu
Keyword(s):  
Quantum Tunneling ◽  
Spin Systems ◽  
Quantum Phase ◽  
Phase Interference

QUANTUM PHASE TRANSITIONAL BEHAVIOR IN THE EXTENDED CASTEN TRIANGLE OF THE INTERACTING BOSON MODEL

2006 ◽  
Vol 15 (08) ◽  
pp. 1723-1733 ◽  
Author(s):  
FENG PAN ◽  
TAO WANG ◽  
Y.-S. HUO ◽  
J. P. DRAAYER
Keyword(s):  
Excited States ◽  
Quantum Phase ◽  
Interacting Boson Model ◽  
Matrix Elements ◽  
Fortran Code ◽  
Model Hamiltonian ◽  
Transitional Behavior ◽  
The Matrix ◽  
Boson Model ◽  
Shape Phase Transition

Quantum phase transitional patterns in the whole parameter space of the consistent-Q Hamiltonian in the Interacting Boson Model are studied based on an implemented Fortran code for numerical computation of the matrix elements in the SU (3) Draayer-Akiyama basis. Results with respect to both ground and some excited states of the model Hamiltonian are discussed. Quantum phase transitional behavior under a variety of parameter situations is shown. It is found that transitional behavior of excited states is more complicated. Pt isotopes are taken as examples in illustrating the prolate-oblate shape phase transition.

Quantum phase transitions for excited states

2009 ◽  
Author(s):  
P. Cejnar ◽  
P. Stránský ◽  
Jan Jolie ◽  
Andreas Zilges ◽  
Nigel Warr ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Excited States ◽  
Quantum Phase Transitions ◽  
Quantum Phase
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