Zobrazeno 1 - 10
of 46
pro vyhledávání: '"O. Buu"'
Autor:
Keith Schwab, Andrew D. Armour, Miles Blencowe, Akshay Naik, Matthew LaHaye, Aashish A. Clerk, O. Buu
Publikováno v:
Nature. 443:193-196
Quantum mechanics demands that the act of measurement must affect the measured object. When a linear amplifier is used to continuously monitor the position of an object, the Heisenberg uncertainty relationship requires that the object be driven by fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9c6dcde8e1e75dde6dd580e688fb865
https://doi.org/10.1038/nature05027
https://doi.org/10.1038/nature05027
Publikováno v:
Journal of Low Temperature Physics. 137:1-26
The NMR spectrum of a simple liquid in a cell of size L depends on D, the diffusion constant, G, the applied field gradient, and M 0, the z-component of magnetization before tipping of the spins. For small tipping angles the shape of the spectrum dep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::624af61e9f001d992f95016876c7a055
https://doi.org/10.1023/b:jolt.0000044232.64825.98
https://doi.org/10.1023/b:jolt.0000044232.64825.98
Publikováno v:
Journal of Low Temperature Physics. 136:1-13
Mechanical resonators, in the form of vibrating wires or torsional oscillators, have long been employed as sensors in liquid 3He and 3He–4He mixtures. The damping of resonators is due to the viscosity of the surrounding liquid which is a strong, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5c01d958a470732042e83940a0ffbac
https://doi.org/10.1023/b:jolt.0000035368.63197.16
https://doi.org/10.1023/b:jolt.0000035368.63197.16
Publikováno v:
Science. 304:74-77
By coupling a single-electron transistor to a high–quality factor, 19.7-megahertz nanomechanical resonator, we demonstrate position detection approaching that set by the Heisenberg uncertainty principle limit. At millikelvin temperatures, position
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20c1ff8960ab477d06d94e268341df66
https://doi.org/10.1126/science.1094419
https://doi.org/10.1126/science.1094419
Publikováno v:
Journal of Low Temperature Physics. 126:1553-1558
Our recent measurements of the viscosity of spin polarized liquid 3 He revealed that, below 100 mK, the relative enhancement of the viscosity is pressure independent and quadratic in polarization m up to m = 70% . This simple behavior is remarkably c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa910f9022904aa3a858663a4dc6e435
https://doi.org/10.1023/a:1014207819489
https://doi.org/10.1023/a:1014207819489
Publikováno v:
Journal of Low Temperature Physics. 126:63-72
The enhanced effective mass of liquid 3He has been alternatively ascribed to the large spin fluctuations in this system (nearly ferromagnetic model) or to local correlations effects (nearly localized model). We recently measured that polarizing liqui
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8d686421d1a9ce33202486869b2aca1
https://doi.org/10.1023/a:1013710716143
https://doi.org/10.1023/a:1013710716143
Publikováno v:
Physical Review Letters. 85:1278-1281
We report on the first measurements of the polarization dependence of the specific heat of liquid 3He. Transient polarizations m of up to 70% were reached by using the rapid melting technique. The specific heat at 60-100 mK and 27 bars is found to de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76b2cd9f2b21b02c9de8c534d0f427c9
https://doi.org/10.1103/physrevlett.85.1278
https://doi.org/10.1103/physrevlett.85.1278
Publikováno v:
Journal of Low Temperature Physics. 121:767-772
We report new experiments on the transverse and longitudinal spin dynamics of liquid 3 He polarized by an 11.3T field. At the lowest temperatures probed, the transverse spin diffusion coefficient saturates with an apparent anisotropy temperature of T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7960faa9b6e71795468b6f1796dfd82
https://doi.org/10.1023/a:1017521123746
https://doi.org/10.1023/a:1017521123746
Publikováno v:
Journal of Low Temperature Physics. 121:779-784
We present nmr measurements in a 6.2% 3 He- 4 He mixture carried out at 11.3 T with temperatures down to 3.5 mK, yielding a very high B/T ratio. We have measured the transverse spin diffusion with the spin-echo technique, We observe a saturation of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4efe465b5eee71e7163f7c6f6aad42a
https://doi.org/10.1023/a:1017525224655
https://doi.org/10.1023/a:1017525224655
Publikováno v:
Physical Review Letters. 83:3466-3469
Using the rapid melting technique to produce strongly polarized liquid ${}^{3}\mathrm{He}$, we have studied how polarization, through the Pauli principle, enhances the liquid viscosity in a wide range of pressures and temperatures ( $2lPl27\mathrm{ba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::341735fbd21dccc7a828885fab1aba97
https://doi.org/10.1103/physrevlett.83.3466
https://doi.org/10.1103/physrevlett.83.3466