Unconditional room-temperature quantum memory
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Hosseini, Mahdi; Campbell, Geoff; Sparkes, Benjamin; Lam, Ping Koy; Buchler, Benjamin
Description
Just as classical information systems require buffers and memory, the same is true for quantum information systems. The potential that optical quantum information processing holds for revolutionizing computation and communication is therefore driving significant research into developing optical quantum memory. A practical optical quantum memory must be able to store and recall quantum states on demand with high efficiency and low noise. Ideally, the platform for the memory would also be simple...[Show more]
dc.contributor.author | Hosseini, Mahdi | |
---|---|---|
dc.contributor.author | Campbell, Geoff | |
dc.contributor.author | Sparkes, Benjamin | |
dc.contributor.author | Lam, Ping Koy | |
dc.contributor.author | Buchler, Benjamin | |
dc.date.accessioned | 2015-12-10T23:32:34Z | |
dc.identifier.issn | 1745-2473 | |
dc.identifier.uri | http://hdl.handle.net/1885/68883 | |
dc.description.abstract | Just as classical information systems require buffers and memory, the same is true for quantum information systems. The potential that optical quantum information processing holds for revolutionizing computation and communication is therefore driving significant research into developing optical quantum memory. A practical optical quantum memory must be able to store and recall quantum states on demand with high efficiency and low noise. Ideally, the platform for the memory would also be simple and inexpensive. Here, we present a complete tomographic reconstruction of quantum states that have been stored in the ground states of rubidium in a vapour cell operating at around 80 °C. Without conditional measurements, we show recall fidelity up to 98% for coherent pulses containing around one photon. To unambiguously verify that our memory beats the quantum no-cloning limit we employ state-independent verification using conditional variance and signal-transfer coefficients. | |
dc.publisher | Nature Publishing Group | |
dc.source | Nature Physics | |
dc.title | Unconditional room-temperature quantum memory | |
dc.type | Journal article | |
local.description.notes | Imported from ARIES | |
local.identifier.citationvolume | 7 | |
dc.date.issued | 2011 | |
local.identifier.absfor | 020603 - Quantum Information, Computation and Communication | |
local.identifier.ariespublication | f2965xPUB1856 | |
local.type.status | Published Version | |
local.contributor.affiliation | Hosseini, Mahdi, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Campbell, Geoff, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Sparkes, Benjamin, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Lam, Ping Koy, College of Physical and Mathematical Sciences, ANU | |
local.contributor.affiliation | Buchler, Benjamin, College of Physical and Mathematical Sciences, ANU | |
local.description.embargo | 2037-12-31 | |
local.bibliographicCitation.issue | 10 | |
local.bibliographicCitation.startpage | 794 | |
local.bibliographicCitation.lastpage | 798 | |
local.identifier.doi | 10.1038/nphys2021 | |
local.identifier.absseo | 970102 - Expanding Knowledge in the Physical Sciences | |
dc.date.updated | 2015-12-10T11:20:38Z | |
local.identifier.scopusID | 2-s2.0-80053602352 | |
local.identifier.thomsonID | 000295584200019 | |
Collections | ANU Research Publications |
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