Extracting Information from Qubit-Environment Correlations
نویسندگان
چکیده
منابع مشابه
Extracting Information from Qubit-Environment Correlations
Most works on open quantum systems generally focus on the reduced physical system by tracing out the environment degrees of freedom. Here we show that the qubit distributions with the environment are essential for a thorough analysis, and demonstrate that the way that quantum correlations are distributed in a quantum register is constrained by the way in which each subsystem gets correlated wit...
متن کاملBath dynamics in an exactly solvable qubit model with initial qubit-environment correlations
We study the bath dynamics in the dephasing model of a two-state quantum system (qubit) coupled to an environment of harmonic oscillators. This model was shown [Morozov et al., Phys. Rev. A, 2012 85, 022101] to admit the analytic solution for the qubit and environment dynamics. Using this solution, we derive the exact expression for the bath reduced density matrix in the presence of initial qub...
متن کاملExtracting Caller Information from Voicemail
In this paper we address the problem of extracting the identities and phone numbers of the callers in voicemail messages. Previous work in information extraction from speech includes spoken document retrieval and named entity detection. This task differs from the named entity task in that the information we are interested in is a subset of the named entities in the message, and consequently, th...
متن کاملExtracting Relevant Information from Samples
The information bottleneck is an information theoretic framework, extending the classical notion of minimal sufficient statistics, that finds concise representations for an ‘input’ random variable that are as relevant as possible for an ‘output’ variable. This framework has been used successfully in various supervised and unsupervised applications. However, its learning theoretic properties and...
متن کاملExtracting concealed information from groups.
Lie detection procedures are typically aimed at determining guilt or innocence of a single suspect. Serious security threats, however, often involve groups, such as terrorist networks or criminal organizations. In this report, we describe a variant of the skin conductance-based Concealed Information Test (CIT) that allows for the extraction of critical information from such groups. Twelve parti...
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: Scientific Reports
سال: 2014
ISSN: 2045-2322
DOI: 10.1038/srep07443