Entanglement of propagating optical modes via a mechanical interface
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Entanglement of propagating optical modes via a mechanical interface. / Chen, Junxin; Rossi, Massimiliano; Mason, David; mwh574, mwh574.
In: Nature Communications, Vol. 11, No. 1, 943, 18.02.2020.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Entanglement of propagating optical modes via a mechanical interface
AU - Chen, Junxin
AU - Rossi, Massimiliano
AU - Mason, David
AU - mwh574, mwh574
N1 - Hy Q
PY - 2020/2/18
Y1 - 2020/2/18
N2 - Many applications of quantum information processing (QIP) require distribution of quantum states in networks, both within and between distant nodes. Optical quantum states are uniquely suited for this purpose, as they propagate with ultralow attenuation and are resilient to ubiquitous thermal noise. Mechanical systems are then envisioned as versatile interfaces between photons and a variety of solid-state QIP platforms. Here, we demonstrate a key step towards this vision, and generate entanglement between two propagating optical modes, by coupling them to the same, cryogenic mechanical system. The entanglement persists at room temperature, where we verify the inseparability of the bipartite state and fully characterize its logarithmic negativity by homodyne tomography. We detect, without any corrections, correlations corresponding to a logarithmic negativity of E-N = 0.35. Combined with quantum interfaces between mechanical systems and solid-state qubit processors, this paves the way for mechanical systems enabling long-distance quantum information networking over optical fiber networks.
AB - Many applications of quantum information processing (QIP) require distribution of quantum states in networks, both within and between distant nodes. Optical quantum states are uniquely suited for this purpose, as they propagate with ultralow attenuation and are resilient to ubiquitous thermal noise. Mechanical systems are then envisioned as versatile interfaces between photons and a variety of solid-state QIP platforms. Here, we demonstrate a key step towards this vision, and generate entanglement between two propagating optical modes, by coupling them to the same, cryogenic mechanical system. The entanglement persists at room temperature, where we verify the inseparability of the bipartite state and fully characterize its logarithmic negativity by homodyne tomography. We detect, without any corrections, correlations corresponding to a logarithmic negativity of E-N = 0.35. Combined with quantum interfaces between mechanical systems and solid-state qubit processors, this paves the way for mechanical systems enabling long-distance quantum information networking over optical fiber networks.
KW - QUANTUM
KW - CAVITY
KW - INFORMATION
KW - RADIATION
KW - RESONATOR
U2 - 10.1038/s41467-020-14768-1
DO - 10.1038/s41467-020-14768-1
M3 - Journal article
C2 - 32071318
VL - 11
JO - Nature Communications
JF - Nature Communications
SN - 2041-1723
IS - 1
M1 - 943
ER -
ID: 248459896