Laser-noise-induced heating in far-off resonance optical traps

Savard, T. A.; O’Hara, K. M.; Thomas, J. E.

doi:10.1103/physreva.56.r1095

Cited by 294 publications

(298 citation statements)

References 16 publications

Supporting

Mentioning

279

Contrasting

Unclassified

Order By: Relevance

“…If the Gaussian beam is modulated, the equilibrium position will shake accordingly. When the modulation frequency is equal to the intrinsic trap frequency of single atoms, shaking will increase the oscillation amplitude and lead to heating [26,27]. It indicates that the radial oscillation frequency of single atoms in the BFORT is increased to 150 kHz, which agrees reasonably well with the theoretical expectation.…”

Section: Experimental Demonstration For the Lamb-dicke Trapsupporting

confidence: 79%

“…In Figure 5(b), we scan the off time from 2 s to 20 s to get the probabilities of atoms still in, and then fit the curve with an exponential decay function. Under our experimental conditions, the 1/e lifetime of single atoms is about 11.4 s due to collisions with untrapped background atoms in the ultrahigh vacuum chamber and heating mechanisms caused by intensity fluctuations and photon scattering of the FORT light [24][25][26].…”

Section: The Lifetime Of Single Atomsmentioning

confidence: 99%

See 1 more Smart Citation

Single atoms in the ring lattice for quantum information processing and quantum simulation

Shi

et al. 2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

We have demonstrated preparing and rotating single neutral rubidium atoms in an optical ring lattice generated by a spatial light modulator, inserting two atoms into a single microscopic optical potential efficiently by dynamically reshaping the optical dipole trap, trapping single atoms in a blue detuned optical bottle beam trap, and confining single atoms into the Lamb-Dicke regime by combining red and blue detuned optical potentials. In combination with the manipulation of internal states of single atoms, the study is opening a way for research in the field of quantum information processing and quantum simulation. In this paper we review the past works and discuss the prospects. laser cooling and trapping, single atoms, quantum information processing, quantum simulation Citation:Yu S, He X D, Xu P, et al. Single atoms in the ring lattice for quantum information processing and quantum simulation. Chin Sci Bull, 2012Bull, , 57: 1931 1945Bull, , doi: 10.1007 Single neutral atoms are promising candidates for quantum information processing [6,7]. A qubit can be encoded in the internal or motional states of an atom, and multi-qubit operations can be performed based on atom-light interactions or atom-atom interactions. In particular, the hyperfine ground states of alkali-metal atoms can be considered as qubits, which can be easily manipulated via microwave radiation or Raman transitions. Several kinds of proposals for quantum gate operation were designed based on dipoledipole interactions between Rydberg atoms [8], cavity-mediated photon exchange [9] and controlled collisions [10]. Furthermore, single atom array can serve as a research platform for physical models described in other systems that are not directly investigated experimentally. The few-body simulation offers an opportunity to understand some intriguing many-body phenomena, such as superconductivity in solid materials [11], and the natural process of photosynthesis [12]. Instead of being adiabatically transferred from ultracold atomic ensemble, in our experiment single atom array is built one by one based on "collisional blockade" mechanism [13,14] that locks the atom number either zero or one in ultra small dipole trap in the presence of near-resonant laser light. Here, we demonstrate trapping single neutral rubidium atoms in the ring lattice generated by a computer controlled spatial light modulator (SLM), and present several kinds of manipulations of single atom array.

show abstract

Section: Experimental Demonstration For the Lamb-dicke Trapsupporting

confidence: 79%

Section: The Lifetime Of Single Atomsmentioning

confidence: 99%

Single atoms in the ring lattice for quantum information processing and quantum simulation

Shi

et al. 2012

Chin. Sci. Bull.

View full text Add to dashboard Cite

show abstract

“…Laser intensity and pointing fluctuations can cause undesirable heating in FORTs [37]. The heating rate due to intensity noise is…”

Section: Laser Noise Induced Heatingmentioning

confidence: 99%

Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms

2005

View full text Add to dashboard Cite

We present a detailed analysis and design of a neutral atom quantum logic device based on atoms in optical traps interacting via dipole-dipole coupling of Rydberg states. The dominant physical mechanisms leading to decoherence and loss of fidelity are enumerated. Our results support the feasibility of performing single and two-qubit gates at MHz rates with decoherence probability and fidelity errors at the level of 10 −3 for each operation. Current limitations and possible approaches to further improvement of the device are discussed.

show abstract

“…From first order perturbation theory, the rate of transition from the ground state of the well (|n = 0 ) to the first excited state (|n = 1 ) is [15] …”

Section: A Preliminariesmentioning

confidence: 99%

Heating of trapped ions from the quantum ground state

et al. 2000

View full text Add to dashboard Cite

We have investigated motional heating of laser-cooled 9 Be + 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 which 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.

show abstract

Laser-noise-induced heating in far-off resonance optical traps

Cited by 294 publications

References 16 publications

Single atoms in the ring lattice for quantum information processing and quantum simulation

Single atoms in the ring lattice for quantum information processing and quantum simulation

Analysis of a quantum logic device based on dipole-dipole interactions of optically trapped Rydberg atoms

Heating of trapped ions from the quantum ground state

Contact Info

Product

Resources

About