شماره راهنما :
1329 دكتري
پديد آورنده :
هرسيج، زينب
عنوان :
بررسي ناهم‌خواني كوانتومي در سيستم‌هاي اطلاعات كوانتومي نسبيتي
گرايش تحصيلي :
ذرات بنيادي
محل تحصيل :
اصفهان : دانشگاه صنعتي اصفهان
صفحه شمار :
يازده، ۱۴۷ص.: مصور
استاد راهنما :
بهروز ميرزا
استاد مشاور :
منصور حقيقت
توصيفگر ها :
هم‌بستگي كوانتومي , درهم‌تنيدگي كوانتومي , ناهم‌خواني كوانتومي , همدوسي كوانتومي , چارچوب مرجع نالخت
استاد داور :
رسول ركني زاده، جواد اختر شناس، غلامرضا خسروي
تاريخ ورود اطلاعات :
1397/12/04
تاريخ ويرايش اطلاعات :
1397/12/05
كد ايرانداك :
ID1329 دكتري
چكيده انگليسي :
Abstract Quantum correlations are important tools to store process and send information When they are used in accelerated frames reduction in quantumness appears In this thesis our goal is to explore systems which store more quantum information Recently it has been shown that a helicity entangled bipartite state has preserved the degree of en tanglement in accelerated frames Investigating quantum discord has shown that acceleration has no e ect on the degree of quantum correlations for bipartite and tripartite helicity entangled states Geometric quantum discord as a Hilbert Schmidt distance in non inertial frames does not impress any in uence either Extending to the beyond single mode approximation acceleration does not have any impact on the quantum features Then cavity systems are utilized in non inertial frames When a two cavity system is considered where one is inertial and the other accelerated in a nite time the mean of quantum discord is degraded periodically Periodic degradation of quantum discord also appears when the state is in a single accelerated cavity Therefore less information is lost inside cavity systems in relativistic frames Next quantum coherence as another measure of quantum correlation is explored from the sight of an accelerated observer Bipartite quantum states in which system is prepared in are di erent in occupation and are very similar to the well known Bell states Di erent degradation patterns of quantum coherence is another result observed When the statistics of particle occupation changes the degradation tone di ers Quantum Entanglement is also studied and di erent patterns of degradation have been presented One interesting outcome of this thesis is that Negativity of the given bipartite bosonic states has explicitly shown exactly the same function while fermionic states are degraded di erently Keywords quantum correlation quantum entanglement quantum discord quantum coherence non inertail frames
استاد راهنما :
بهروز ميرزا
استاد مشاور :
منصور حقيقت
استاد داور :
رسول ركني زاده، جواد اختر شناس، غلامرضا خسروي
