Heating of trapped ions from the quantum ground state

被引：432

作者：

Turchette, QA ^{[1
]}

Kielpinski, D ^{[1
]}

King, BE ^{[1
]}

Leibfried, D ^{[1
]}

Meekhof, DM ^{[1
]}

Myatt, CJ ^{[1
]}

Rowe, MA ^{[1
]}

Sackett, CA ^{[1
]}

Wood, CS ^{[1
]}

Itano, WM ^{[1
]}

Monroe, C ^{[1
]}

Wineland, DJ ^{[1
]}

机构：

[1] Natl Inst Stand & Technol, Div Time & Frequency, Boulder, CO 80303 USA

来源：

PHYSICAL REVIEW A | 2000年 / 61卷 / 06期

关键词：

D O I：

10.1103/PhysRevA.61.063418

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have investigated motional heating of laser-cooled Be-9(+) ions held in radio-frequency (Paul) traps. We have measured heating rates in a variety of traps with different geometries, electrode materials, and characteristic sizes. The results show that heating is due to electric-field noise from the trap electrodes that exerts a stochastic fluctuating force on the ion. The scaling of the heating rate with trap size is much stronger than that expected from a spatially uniform noise source on the electrodes (such as Johnson noise from external circuits), indicating that a microscopic uncorrelated noise source on the electrodes (such as fluctuating patch-potential fields) is a more likely candidate for the source of heating.

引用

页数：8

共 26 条

[1]

AGARWAL GS, 1975, PHYS REV A, V11, P230, DOI 10.1103/PhysRevA.11.230

[2] MACROSCOPIC VARIATIONS OF SURFACE-POTENTIALS OF CONDUCTORS [J].

CAMP, JB ;

DARLING, TW ;

BROWN, RE .

JOURNAL OF APPLIED PHYSICS, 1991, 69 (10) :7126-7129

[3] QUANTUM COMPUTATIONS WITH COLD TRAPPED IONS [J].

CIRAC, JI ;

ZOLLER, P .

PHYSICAL REVIEW LETTERS, 1995, 74 (20) :4091-4094

[4] LASER COOLING TO THE ZERO-POINT ENERGY OF MOTION [J].

DIEDRICH, F ;

BERGQUIST, JC ;

ITANO, WM ;

WINELAND, DJ .

PHYSICAL REVIEW LETTERS, 1989, 62 (04) :403-406

[5] Loss and heating of particles in small and noisy traps [J].

Henkel, C ;

Pötting, S ;

Wilkens, M .

APPLIED PHYSICS B-LASERS AND OPTICS, 1999, 69 (5-6) :379-387

[6] Heating of trapped atoms near thermal surfaces [J].

Henkel, C ;

Wilkens, M .

EUROPHYSICS LETTERS, 1999, 47 (04) :414-420

[7] Theory of heating of the quantum ground state of trapped ions [J].

James, DFV .

PHYSICAL REVIEW LETTERS, 1998, 81 (02) :317-320

[8] COAXIAL-RESONATOR-DRIVEN RF (PAUL) TRAP FOR STRONG CONFINEMENT [J].

JEFFERTS, SR ;

MONROE, C ;

BELL, EW ;

WINELAND, DJ .

PHYSICAL REVIEW A, 1995, 51 (04) :3112-3116

[9] Cooling the collective motion of trapped ions to initialize a quantum register [J].

King, BE ;

Wood, CS ;

Myatt, CJ ;

Turchette, QA ;

Leibfried, D ;

Itano, WM ;

Monroe, C ;

Wineland, DJ .

PHYSICAL REVIEW LETTERS, 1998, 81 (07) :1525-1528

[10]

Kleint C., 1963, ANN PHYS-LEIPZIG, V10, P309, DOI 10.1002/andp.19634650507

← 1 2 3 →