Approaching the Heisenberg Limit without Single-Particle Detection
نویسندگان
چکیده
منابع مشابه
Approaching the Heisenberg Limit Without Single-Particle Detection: Supplemental Material
In this supplement, we derive the effective one-axis twisting dynamics of an atomic ensemble coupled to a driven optical cavity [1–3]. This system has been analyzed elsewhere, but we know of no comprehensive treatment using the Lindblad master equation formalism. We also establish an equivalence between the twisting dynamics of the driven cavity scheme and the twisting dynamics of a four-photon...
متن کاملApproaching the Heisenberg Limit without Single-Particle Detection.
We propose an approach to quantum phase estimation that can attain precision near the Heisenberg limit without requiring single-particle-resolved state detection. We show that the "one-axis twisting" interaction, well known for generating spin squeezing in atomic ensembles, can also amplify the output signal of an entanglement-enhanced interferometer to facilitate readout. Applying this interac...
متن کاملInteracting Atomic Interferometry for Rotation Sensing Approaching the Heisenberg Limit.
Atom interferometers provide exquisite measurements of the properties of noninertial frames. While atomic interactions are typically detrimental to good sensing, efforts to harness entanglement to improve sensitivity remain tantalizing. Here we explore the role of interactions in an analogy between atomic gyroscopes and SQUIDs, motivated by recent experiments realizing ring-shaped traps for ult...
متن کاملSingle-particle structure of silicon isotopes approaching 42Si
S. R. Stroberg,1,2 A. Gade,1,2 J. A. Tostevin,3 V. M. Bader,1,2 T. Baugher,1,2 D. Bazin,1,2 J. S. Berryman,1 B. A. Brown,1,2 C. M. Campbell,4 K. W. Kemper,5 C. Langer,1,6 E. Lunderberg,1,2 A. Lemasson,1 S. Noji,1 F. Recchia,1 C. Walz,1 D. Weisshaar,1 and S. J. Williams1 1National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824, USA 2Department of Ph...
متن کاملQuantum cryptography approaching the classical limit.
We consider the security of continuous-variable quantum cryptography as we approach the classical limit, i.e., when the unknown preparation noise at the sender's station becomes significantly noisy or thermal (even by as much as 10(4) times greater than the variance of the vacuum mode). We show that, provided the channel transmission losses do not exceed 50%, the security of quantum cryptograph...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2016
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.116.053601