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 Tunneling and Quantum Phase Interference in a [MnII2MnIII2] Single-Molecule Magnet

2005 ◽  
Vol 127 (32) ◽  
pp. 11311-11317 ◽  
Author(s):  
Lollita Lecren ◽  
Wolfgang Wernsdorfer ◽  
Yang-Guang Li ◽  
Olivier Roubeau ◽  
Hitoshi Miyasaka ◽  
...  
Keyword(s):  
Single Molecule ◽  
Quantum Tunneling ◽  
Quantum Phase ◽  
Single Molecule Magnet ◽  
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 Quantum macroscopicity measure for arbitrary spin systems and its application to quantum phase transitions

2016 ◽  
Vol 94 (5) ◽  
Author(s):  
Chae-Yeun Park ◽  
Minsu Kang ◽  
Chang-Woo Lee ◽  
Jeongho Bang ◽  
Seung-Woo Lee ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Arbitrary Spin ◽  
Spin Systems ◽  
Quantum Phase

scholarly journals Pairwise Entanglement and Quantum Phase Transitions in Spin Systems

2007 ◽  
Vol 24 (10) ◽  
pp. 2737-2740 ◽  
Author(s):  
Gu Shi-Jian ◽  
Tian Guang-Shan ◽  
Lin Hai-Qing
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Spin Systems ◽  
Quantum Phase

Detecting quantum phase transition in multipartite spin systems via bipartite detectors

2019 ◽  
Vol 16 (9) ◽  
pp. 095702
Author(s):  
Jixue Liu ◽  
Jiaojiao Chen ◽  
Jiadong Shi ◽  
Tao Wu
Keyword(s):  
Phase Transition ◽  
Quantum Phase Transition ◽  
Spin Systems ◽  
Quantum Phase

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
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