Results 31 to 40 of about 255,693 (225)

Correlated electron transport through double quantum dots coupled to normal and superconducting leads

, 2010
We study Andreev transport through double quantum dots connected in series normal and superconducting (SC) leads, using the numerical renormalization group.
A. C. Hewson, Akira Oguri, L. I. Glazman, Norio Kawakami, Yoichi Tanaka   +4 more
core   +1 more source

Singlet generation in mixed-state quantum networks [PDF]

Physical Review A, 2010
17 pages, 21 ...
Broadfoot, S., Dorner, U., Jaksch, D.
openaire   +3 more sources

Non-adiabatic charge state transitions in singlet–triplet qubits

New Journal of Physics, 2013
In double quantum dot singlet–triplet qubits, the exchange interaction is used in both quantum gate operation and the measurement of the state of the qubit. The exchange can be controlled electronically by applying gate voltage pulses.
Tuukka Hiltunen, Juha Ritala, Topi Siro, Ari Harju   +3 more
doaj   +1 more source

Preparation of Long-Lived Nuclear Singlet States in Three-Spin Systems

Chinese Journal of Magnetic Resonance, 2018
Long-lived nuclear singlet states are widely used in NMR because they have longer lifetime (TS) than conventional longitudinal relaxation time (T1).
GUO Hai-qing, XIN Jia-xiang, LIU Hui-xia, WEI Da-xiu, YAO Ye-feng   +4 more
doaj   +1 more source

Entanglement, measurement, and conditional evolution of the Kondo singlet interacting with a mesoscopic detector

, 2007
We investigate various aspects of the Kondo singlet in a quantum dot (QD) electrostatically coupled to a mesoscopic detector. The two subsystems are represented by an entangled state between the Kondo singlet and the charge-dependent detector state.
Averin D A, Büttiker M, Dittrich T, Gyong Luck Khym, Hewson A C, Kang K, Khym G L, Kicheon Kang, Kouwenhoven L P, Levinson Y, Levinson Y, Meyer-Arendt J R, Nielson M A, Silva A   +13 more
core   +1 more source

Extending the Scope of Singlet‐State Spectroscopy [PDF]

ChemPhysChem, 2007
AbstractDifferent decoupling sequences are tested—using various shaped radio‐frequency (RF) pulses—to achieve the longest possible lifetimes of singlet‐state populations over the widest possible bandwidths, that is, ranges of offsets and relative chemical shifts of the nuclei involved in the singlet states.
Sarkar, Riddhiman, Ahuja, Puneet, Moskau, Detlef, Vasos, Paul R, Bodenhausen, Geoffrey   +4 more
openaire   +3 more sources

Cotunneling Spectroscopy in Few-Electron Quantum Dots

, 2004
Few-electron quantum dots are investigated in the regime of strong tunneling to the leads. Inelastic cotunneling is used to measure the two-electron singlet-triplet splitting above and below a magnetic field driven singlet-triplet transition.
A. C. Gossard, C. M. Marcus, C. Yannouleas, D. M. Zumbühl, M. P. Hanson   +4 more
core   +1 more source

Reversible gating of singlet fission by tuning the role of a charge-transfer state

Nature Communications
Stimulus-responsive triplet excited states and multiexcitonic logic gates have garnered increasing interest. Singlet fission is an efficient multiple exciton generation process, in which one singlet converts into two triplets. Singlet fission is, however,
Yifan Bo, Yuxuan Hou, Dominic A. X. Lavergne, Timothy Clark, Michael J. Ferguson, Rik R. Tykwinski, Dirk M. Guldi   +6 more
doaj   +1 more source

Excitation Spectrum of One-dimensional Extended Ionic Hubbard Model

, 2010
We use Perturbative Continuous Unitary Transformations (PCUT) to study the one dimensional Extended Ionic Hubbard Model (EIHM) at half-filling in the band insulator region.
A. Avignon, A. Garg, A. Mielke, C. Knetter, C. Knetter, C. Knetter, C. Knetter, C.D. Batista, C.P. Heidbrink, F. Wegner, G. Baskaran, I. Batistic, J. Hubbard, J. Ohara, J. Vidal, J.B. Torrance, J.B. Torrance, K. Bouadim, K. Byczuk, K.P. Schmidt, K.P. Schmidt, K.P. Schmidt, K.P. Schmidt, M. Arlego, M. Fabrizio, M. Hafez, M. Hafez, M. Hafez, M. Ono, M.P. Gelfand, N. Maeshima, N. Nagaosa, N. Nagaosa, N. Paris, R.E. Cohen, S. A. Jafari, S. Dusuel, S. Iwai, S.R. Manmana, T. Egami, T. Fischer, T. Mitani, T. Neumman, W. Brenig, W. Zheng, Y. Tokura, Ye Fei   +46 more
core   +2 more sources

Dissociation of singlet excitons dominates photocurrent improvement in high-efficiency non-fullerene organic solar cells

Nano Research Energy
In organic solar cells, the singlet and triplet excitons dissociate into free charge carriers with different mechanisms due to their opposite spin state. Therefore, the ratio of the singlet and triplet excitons directly affects the photocurrent.
Qicong Li, Shizhong Yue, Zhitao Huang, Chao Li, Jiaqian Sun, Keqian Dong, Zhijie Wang, Kong Liu, Shengchun Qu, Yong Lei   +9 more
doaj   +1 more source