Dissipative Phase Transitions in Quantum Many-Body Systems with Multilevel Constituents
The interplay of interactions, driving, and dissipation in quantum many-body systems composed of multilevel constituents (qudits) can lead to rich phase diagrams and collective effects, which differ from the case of two-level constituents (qubits).
Quantum Mechanical Derivation of the Faraday Effect
The Faraday effect can be derived from a simple two-state quantum mechanical model, treating the light as a quantized electromagnetic field and emphasizing the quantum-mechanical aspects of the phenomenon.
Decoherence and the Emergence of Classical Probability from Quantum Quasi-Probability
The combination of quasi-probabilistic emergence via decoherence and semi-classical emergence via averaging allows for the derivation of a classical probability model from a quantum possibility space model.
SU(2) 및 SU(1,1) 일반화 코히어런트 상태와 GHZ 및 W 상태의 가성 엔트로피와 SVD 엔트로피 분석
양자 역학 시스템의 다양한 상태에 대한 가성 엔트로피와 SVD 엔트로피를 분석하여 이들 엔트로피 측정치가 양자 상태 간의 차이를 효과적으로 특성화할 수 있음을 보여줌.
Energy Variation and Landauer's Principle in the Interaction between Qubit and Quantum Field Theory
The energy variation of the quantum field theory is related to the trajectory and initial state of the qubit, the expectation values of the linear and quadratic field operators, and the temporal order product operator. Landauer's principle still holds for any state of motion of the qubit.
帶電自旋-1/2粒子在曲率時空中最小耦合電磁場下的疊加態動力學:WKB近似
本文探討了帶電自旋-1/2粒子在曲率時空中最小耦合電磁場的動力學,特別是當粒子處於不同質量的疊加態時的情況。作者採用了Wentzel-Kramers-Brillouin (WKB)近似方法,得到了這類粒子的自旋動力學以及偏離測地線運動的情況。
전하를 가진 스핀-1/2 입자의 곡면 시공간에서 전자기장과 최소 결합된 상태의 중첩 상태 동역학에 대한 WKB 근사 연구
곡면 시공간에서 전자기장과 최소 결합된 상태의 스핀-1/2 입자의 중첩 상태 동역학을 WKB 근사를 사용하여 연구하였다. 각 질량 고유 상태가 서로 다른 고유 시간을 경험하는 문제를 해결하기 위해 결합된 Dirac 방정식으로부터 2차 미분 방정식을 도출하는 전략을 사용하였다.
荷電スピン-1/2粒子の重ね合わせ状態の曲がった時空中での電磁場との最小結合における動力学
曲がった時空中を伝播する荷電スピン-1/2粒子の重ね合わせ状態の動力学を、WKB近似を用いて解析した。粒子の運動方程式と角運動量の動力学を導出し、中性粒子の場合との違いを明らかにした。
Dynamics of Charged Spin-1/2 Particles in Superposed States Coupled to Electromagnetism in Curved Spacetime within the WKB Approximation
The dynamics of charged spin-1/2 particles in superposed states minimally coupled to electromagnetism in curved spacetime can be described using a Wentzel–Kramers–Brillouin (WKB) approximation of the Dirac equation, which yields equations of motion and spin dynamics for the particles.
時間依賴量子反轉振盪子的Schwinger-Keldysh路徑積分形式
本文研究了使用著名的Schwinger-Keldysh形式在量子機械淬火的存在下研究反轉振盪子系統的時間依賴量子相關性行為。
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