Quenching spin decoherence in diamond through spin bath polarization

被引：210

作者：

Takahashi, Susumu ^{[1
,2
]}

Hanson, Ronald ^{[1
,3
,4
]}

van Tol, Johan ^{[5
]}

Sherwin, Mark S. ^{[1
,2
]}

Awschalom, David D. ^{[1
,4
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Ctr Terahertz Sci & Technol, Santa Barbara, CA 93106 USA

[3] Delft Univ Technol, Kavli Inst Nanosci, NL-2600 GA Delft, Netherlands

[4] Univ Calif Santa Barbara, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USA

[5] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.101.047601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We experimentally demonstrate that the decoherence of a spin by a spin bath can be completely eliminated by fully polarizing the spin bath. We use electron paramagnetic resonance at 240 GHz and 8 T to study the electron-spin coherence time T(2) of nitrogen-vacancy centers and nitrogen impurities in diamond from room temperature down to 1.3 K. A sharp increase of T(2) is observed below the Zeeman energy (11.5 K). The data are well described by a suppression of the flip-flop induced spin bath fluctuations due to thermal electron-spin polarization. T(2) saturates at similar to 250 mu s below 2 K, where the polarization of the electron-spin bath exceeds 99%.

引用

收藏

页数：4

相关论文

共 32 条

[1] Challenges for semiconductor spintronics [J].

Awschalom, David D. ;

Flatte, Michael E. .

NATURE PHYSICS, 2007, 3 (03) :153-159

[2] Large nuclear overhauser fields detected in vertically coupled double quantum dots [J].

Baugh, Jonathan ;

Kitamura, Yosuke ;

Ono, Keiji ;

Tarucha, Seigo .

PHYSICAL REVIEW LETTERS, 2007, 99 (09)

[3] Optical pumping of the electronic and nuclear spin of single charge-tunable quantum dots [J].

Bracker, AS ;

Stinaff, EA ;

Gammon, D ;

Ware, ME ;

Tischler, JG ;

Shabaev, A ;

Efros, AL ;

Park, D ;

Gershoni, D ;

Korenev, VL ;

Merkulov, IA .

PHYSICAL REVIEW LETTERS, 2005, 94 (04) :1-4

[4] Coherent dynamics of coupled electron and nuclear spin qubits in diamond [J].

Childress, L. ;

Dutt, M. V. Gurudev ;

Taylor, J. M. ;

Zibrov, A. S. ;

Jelezko, F. ;

Wrachtrup, J. ;

Hemmer, P. R. ;

Lukin, M. D. .

SCIENCE, 2006, 314 (5797) :281-285

[5] Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics [J].

Coish, WA ;

Loss, D .

PHYSICAL REVIEW B, 2004, 70 (19) :1-21

[6] Decoherence from spin environments [J].

Cucchietti, FM ;

Paz, JP ;

Zurek, WH .

PHYSICAL REVIEW A, 2005, 72 (05)

[7] Theory of nuclear-induced spectral diffusion: Spin decoherence of phosphorus donors in Si and GaAs quantum dots [J].

de Sousa, R ;

Das Sarma, S .

PHYSICAL REVIEW B, 2003, 68 (11) :1153221-11532213

[8] Quantum oscillations without quantum coherence [J].

Dobrovitski, VV ;

De Raedt, HA ;

Katsnelson, MI ;

Harmon, BN .

PHYSICAL REVIEW LETTERS, 2003, 90 (21) :4-210401

[9] Anisotropic interactions of a single spin and dark-spin spectroscopy in diamond [J].

Epstein, RJ ;

Mendoza, FM ;

Kato, YK ;

Awschalom, DD .

NATURE PHYSICS, 2005, 1 (02) :94-98

[10] Room-temperature coherent coupling of single spins in diamond [J].

Gaebel, Torsten ;

Domhan, Michael ;

Popa, Iulian ;

Wittmann, Christoffer ;

Neumann, Philipp ;

Jelezko, Fedor ;

Rabeau, James R. ;

Stavrias, Nikolas ;

Greentree, Andrew D. ;

Prawer, Steven ;

Meijer, Jan ;

Twamley, Jason ;

Hemmer, Philip R. ;

Wrachtrup, Joerg .

NATURE PHYSICS, 2006, 2 (06) :408-413

← 1 2 3 4 →