Abstract:
:Techniques to facilitate controlled interactions between single photons and atoms are now being actively explored. These techniques are important for the practical realization of quantum networks, in which multiple memory nodes that utilize atoms for generation, storage and processing of quantum states are connected by single-photon transmission in optical fibres. One promising avenue for the realization of quantum networks involves the manipulation of quantum pulses of light in optically dense atomic ensembles using electromagnetically induced transparency (EIT, refs 8, 9). EIT is a coherent control technique that is widely used for controlling the propagation of classical, multi-photon light pulses in applications such as efficient nonlinear optics. Here we demonstrate the use of EIT for the controllable generation, transmission and storage of single photons with tunable frequency, timing and bandwidth. We study the interaction of single photons produced in a 'source' ensemble of 87Rb atoms at room temperature with another 'target' ensemble. This allows us to simultaneously probe the spectral and quantum statistical properties of narrow-bandwidth single-photon pulses, revealing that their quantum nature is preserved under EIT propagation and storage. We measure the time delay associated with the reduced group velocity of the single-photon pulses and report observations of their storage and retrieval.
journal_name
Naturejournal_title
Natureauthors
Eisaman MD,André A,Massou F,Fleischhauer M,Zibrov AS,Lukin MDdoi
10.1038/nature04327keywords:
subject
Has Abstractpub_date
2005-12-08 00:00:00pages
837-41issue
7069eissn
0028-0836issn
1476-4687pii
nature04327journal_volume
438pub_type
杂志文章相关文献
NATURE文献大全abstract::Haemoglobin is the prototype of an allosteric protein in which cooperative behaviour depends on interaction between unlike subunits. Here we present haematological and biochemical evidence that electrostatic interactions are an important determinant of haemoglobin assembly. Individuals heterozygous for positively char...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/306498a0
更新日期:1983-12-01 00:00:00
abstract::Large, actively swimming suspension feeders evolved several times in Earth's history, arising independently from groups as diverse as sharks, rays and stem teleost fishes, and in mysticete whales. However, animals occupying this niche have not been identified from the early Palaeozoic era. Anomalocarids, a group of st...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature13010
更新日期:2014-03-27 00:00:00
abstract::The nucleus of mammalian cells displays a distinct spatial segregation of active euchromatic and inactive heterochromatic regions of the genome1,2. In conventional nuclei, microscopy shows that euchromatin is localized in the nuclear interior and heterochromatin at the nuclear periphery1,2. Genome-wide chromosome conf...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/s41586-019-1275-3
更新日期:2019-06-01 00:00:00
abstract::Anti-inflammatory glucocorticoids inhibit prostaglandin (PG) biosynthesis by preventing arachidonic acid release from phospholipids rather than inhibiting the cyclooxygenase. As in other cells, this steroid action depends on receptor occupation and de novo protein/RNA biosynthesis. We have previously shown in guinea p...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/287147a0
更新日期:1980-09-11 00:00:00
abstract::The Kondo effect--a many-body phenomenon in condensed-matter physics involving the interaction between a localized spin and free electrons--was discovered in metals containing small amounts of magnetic impurities, although it is now recognized to be of fundamental importance in a wide class of correlated electron syst...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35015509
更新日期:2000-06-15 00:00:00
abstract::The detection of electron spins associated with single defects in solids is a critical operation for a range of quantum information and measurement applications under development. So far, it has been accomplished for only two defect centres in crystalline solids: phosphorus dopants in silicon, for which electrical rea...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature12081
更新日期:2013-05-02 00:00:00
abstract::Sensory transduction in taste and olfaction, the principal chemical senses, seems to be mediated by membrane-associated proteins on the apical surfaces of the respective receptor cells. The recent isolation and characterization of soluble 'odorant-binding proteins' secreted from the nasal glands of rat, cow and frog, ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/343366a0
更新日期:1990-01-25 00:00:00
abstract::The neocortex of the adult brain consists of neurons and glia that are generated by precursor cells of the embryonic ventricular zone. In general, glia are generated after neurons during development, but radial glia are an exception to this rule. Radial glia are generated before neurogenesis and guide neuronal migrati...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35055553
更新日期:2001-02-08 00:00:00
abstract::DNA methylation has a profound impact on genome stability, transcription and development. Although enzymes that catalyse DNA methylation have been well characterized, those that are involved in methyl group removal have remained elusive, until recently. The transformative discovery that ten-eleven translocation (TET) ...
journal_title:Nature
pub_type: 杂志文章,评审
doi:10.1038/nature12750
更新日期:2013-10-24 00:00:00
abstract::Metastasis is a major cause of death in cancer patients and involves a multistep process including detachment of cancer cells from a primary cancer, invasion of surrounding tissue, spread through circulation, re-invasion and proliferation in distant organs. KiSS-1 is a human metastasis suppressor gene, that suppresses...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35079135
更新日期:2001-05-31 00:00:00
abstract:: ...
journal_title:Nature
pub_type: 评论,新闻
doi:10.1038/d41586-019-00563-6
更新日期:2019-02-01 00:00:00
abstract::Water striders Gerridae are insects of characteristic length 1 cm and weight 10 dynes that reside on the surface of ponds, rivers, and the open ocean. Their weight is supported by the surface tension force generated by curvature of the free surface, and they propel themselves by driving their central pair of hydrophob...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature01793
更新日期:2003-08-07 00:00:00
abstract::Protein engineering is being developed for mapping the energetics and pathway of protein folding. From kinetic studies on wild-type and mutant proteins, the sequence and energetics of formation of tertiary interactions of side chains can be mapped and the formation of secondary structure inferred. Here we cross-check ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/346488a0
更新日期:1990-08-02 00:00:00
abstract::The determination of molecular masses from barometric sedimentation profiles, a main topic in ultracentrifugal analysis, is thought to be quantitatively correct for non-interacting particles. Whereas this expectation is justified for uncharged colloids or macromolecules at low volume fractions, early ultracentrifugati...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature02672
更新日期:2004-06-24 00:00:00
abstract::Climate strongly affects the production of sediment from mountain catchments as well as its transport and deposition within adjacent sedimentary basins. However, identifying climatic influences on basin stratigraphy is complicated by nonlinearities, feedback loops, lag times, buffering and convergence among processes ...
journal_title:Nature
pub_type: 历史文章,杂志文章
doi:10.1038/nature11513
更新日期:2012-11-01 00:00:00
abstract::Thyroid hormones and retinoic acid function through nuclear receptors that belong to the steroid/thyroid-hormone receptor superfamily. Thyroid hormone receptors (TRs) and retinoic acid receptors (RARs) require auxiliary nuclear proteins for efficient DNA binding. Here we report that retinoid X receptors RXR alpha is o...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/355441a0
更新日期:1992-01-30 00:00:00
abstract::Tumour cells become addicted to the expression of initiating oncogenes like Ras, such that loss of oncogene expression in established tumours leads to tumour regression. HRas, NRas or KRas are mutated to remain in the active GTP-bound oncogenic state in many cancers. Although Ras activates several proteins to initiate...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature06778
更新日期:2008-04-03 00:00:00
abstract::The loose material--regolith--on the surfaces of asteroids is thought to represent ballistically emplaced ejecta from impacts but the identification of source craters and the detailed study of the regolith modification have been hampered by the limited spatial resolution and area coverage of the few asteroids imaged b...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/35096513
更新日期:2001-09-27 00:00:00
abstract::Early sensory experience instructs the maturation of neural circuitry in the cortex. This has been studied extensively in the primary visual cortex, in which loss of vision to one eye permanently degrades cortical responsiveness to that eye, a phenomenon known as ocular dominance plasticity (ODP). Cortical inhibition ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature12485
更新日期:2013-09-26 00:00:00
abstract::Copy number variants (CNVs) are major contributors to genetic disorders. We have dissected a region of the 16p11.2 chromosome--which encompasses 29 genes--that confers susceptibility to neurocognitive defects when deleted or duplicated. Overexpression of each human transcript in zebrafish embryos identified KCTD13 as ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature11091
更新日期:2012-05-16 00:00:00
abstract::Phelan-McDermid syndrome (PMDS) is a complex neurodevelopmental disorder characterized by global developmental delay, severely impaired speech, intellectual disability, and an increased risk of autism spectrum disorders (ASDs). PMDS is caused by heterozygous deletions of chromosome 22q13.3. Among the genes in the dele...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature12618
更新日期:2013-11-14 00:00:00
abstract::The relationship between the semantic processing of words and of pictures is a matter of debate among cognitive scientists. We studied the functional anatomy of such processing by using positron-emission tomography (PET). We contrasted activity during two semantic tasks (probing knowledge of associations between conce...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/383254a0
更新日期:1996-09-19 00:00:00
abstract::The thymus has two important roles in controlling the specificity of T lymphocytes. First, T cells differentiating in the thymus are rendered tolerant of 'self' antigens, particularly antigens encoded by the major histocompatibility complex, the H-2 complex in mice. Second, the thymus imbues T cells with the property ...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/319672a0
更新日期:1986-02-20 00:00:00
abstract::Dopamine (DA) has largely been ignored in considering possible mechanisms underlying the therapeutic effects of tricyclic anti-depressants (TCA). Most previous work done has focused on the ability of some TCAs to block the in vitro re-uptake of DA--an effect which unfortunately requires very high doses. Recently, howe...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/287451a0
更新日期:1980-10-02 00:00:00
abstract::Nanoscale electronic devices made from carbon nanotubes, such as transistors and sensors, are much smaller and more versatile than those that rely on conventional microelectronic chips, but their development for mass production has been thwarted by difficulties in aligning and integrating the millions of nanotubes req...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/425036a
更新日期:2003-09-04 00:00:00
abstract::Rho is the essential RNA helicase that sets the borders between transcription units and adjusts transcriptional yield to translational needs in bacteria. Although Rho was the first termination factor to be discovered, the actual mechanism by which it reaches and disrupts the elongation complex (EC) is unknown. Here we...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature08669
更新日期:2010-01-14 00:00:00
abstract::Platelet-derived growth factor (PDGF), as purified from fresh human platelets, is a protein of relative molecular mass (Mr) 30,000 composed of two disulphide-linked subunit chains of similar size, named A and B (ref. 1). The dimer structure of PDGRF seems to be important for its biological effects, as reduction irreve...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/319511a0
更新日期:1986-02-06 00:00:00
abstract::The X-ray structure of a pentameric ligand-gated ion channel from Erwinia chrysanthemi (ELIC) has recently provided structural insight into this family of ion channels at high resolution. The structure shows a homo-pentameric protein with a barrel-stave architecture that defines an ion-conduction pore located on the f...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature07461
更新日期:2009-01-01 00:00:00
abstract::Long-term potentiation of chemical synapses is closely related to memory and learning. Studies of this process have concentrated on chemically mediated excitatory synapses. By contrast, activity-dependent modification of gap junctions, which also widely exist in higher structures such as hippocampus and neocortex, has...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/348542a0
更新日期:1990-12-06 00:00:00
abstract::The formation of precise connections between retina and lateral geniculate nucleus (LGN) involves the activity-dependent elimination of some synapses, with strengthening and retention of others. Here we show that the major histocompatibility complex (MHC) class I molecule H2-D(b) is necessary and sufficient for synaps...
journal_title:Nature
pub_type: 杂志文章
doi:10.1038/nature13154
更新日期:2014-05-08 00:00:00