Incoherent operation
Webherent operations are incoherent regardless of a particular experimental realization. Fully incoherent operations is the most general set having this property [44]. An alternative approach to coherence was made by Yadin et al. [46], who studied quantum processes … WebJul 7, 2024 · The incoherent operations converting the pure state into X state are analyzed. The coherence measure is also calculated for X states. 1 Introduction Quantum coherence is an essential ingredient for a plethora of physical phenomena in quantum optics, quantum …
Incoherent operation
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WebSep 14, 2024 · An incoherent operation is defined as a completely positive trace-preserving map, , where the Kraus operators Kn satisfy not only but also for each Kn, i.e. each Kn maps an incoherent state to an incoherent state. With these notions, Baumgratz et al proposed a rigorous framework for quantifying coherence, which can be stated as follows [ 14 ]. WebMay 19, 2024 · In this way, incoherent operations map incoherent states into incoherent states. We will use the notation \ ( \Psi \rangle \mathop {\to }\limits_ { {\rm {I}} {\rm {O}}} \Phi \rangle \) to...
WebFeb 15, 2024 · Besides, we give an easy-to-verified sufficient and necessary condition to determine whether a state can be probabilistically enhanced via a stochastic strictly incoherent operation. Our findings provide two feasibility criteria for the deterministic purification and the probabilistic enhancement of coherence, respectively. WebDec 23, 2016 · This approach is based on a simple principle: we demand that a genuinely incoherent operation preserves all incoherent states. This framework captures coherence under additional constrains such as energy preservation and all genuinely incoherent operations are incoherent regardless of their particular experimental realization.
WebNov 30, 2016 · Many different approaches to a resource theory of coherence have recently been proposed, with their differences lying primarily in the identification of “free” or “incoherent” operations. In... Webherent operations (DIO), which to our knowledge has never discussed before in literature. We provide phys-ical motivation for DIO and show that these operations are just as powerful as Maximal Incoherent Operations (MIO) when acting on qubits. We then study the class …
WebJul 28, 2024 · We also prove that a generalized form of broadcasting via incoherent quantum operations can occur if and only if the state of system is coherent. In this case, we are able to give a method for constructing an incoherent quantum operation to broadcast …
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