Identifying quantum states capable of high-fidelity transmission over a spin chain
نویسندگان
چکیده
منابع مشابه
Generating quantum states through spin chain dynamics
The spin chain is a theoretical work-horse of the physicist, providing a convenient, tractablemodel that yields insight into a host of physical phenomena including conduction, frustration, superconductivity, topological phases, localisation, phase transitions, quantum chaos and even string theory.Our ultimate aim, however, is not just to understand the properties of a physical system, but to ha...
متن کاملQuantum Hoeffding bound for states on a spin chain
We extend recent results on the quantum Hoeffding bound from the i.i.d. setting to a setting when both the null-hypothesis and the counter-hypothesis can be correlated states of a spin chain. The key property in the extension is a certain factorization property of the states. Typical examples with this property are the global Gibbs states of translationinvariant finite-range interactions.
متن کاملhigh spin states in 191os
high spin states in the neutron rich nucleus 191os has been populated for the first time using the82se+192os deep-inelastic reaction at 460 mev beam energy using the alpi accelerators at the laboratorynazionali di legnaro, italy. high fold γ-γ coincidences were acquired with the 4π spectrometer gaspdetector array, consisting of 40 compton-suppressed, large-volume germanium detectors with an inn...
متن کاملHigh-fidelity gates in quantum dot spin qubits.
Several logical qubits and quantum gates have been proposed for semiconductor quantum dots controlled by voltages applied to top gates. The different schemes can be difficult to compare meaningfully. Here we develop a theoretical framework to evaluate disparate qubit-gating schemes on an equal footing. We apply the procedure to two types of double-dot qubits: the singlet-triplet and the semicon...
متن کاملinvestigation of high-spin rotational states in the atomic nucleus.
the ground state rotational bands of some rare earth nuclei show a rather strange behaviour at large values of angular momenta. the nuclear moment of inertia teta increases smoothly with angular momentum i up to i=12. then at about i=14 there is a sudden increase in the moment of inertia. the plot of teta versus the square of the angular velocity w gives a s-shaped curve. we attempt here to rep...
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 A
سال: 2013
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.88.032303