119 citations · 270 across the 9 of their papers we have counts for
9 papers
Exact Solutions for Spin Conserving Models and the Wigner-Araki-Yanase Theorem
Michael Steiner, Ronald Rendell
The Wigner-Araki-Yanase (WAY) theorem is a well-known theorem regarding limitations of quantum measurement in the presence of additive conservation laws. Under the assumptions of t…
Complementary Relationships between Entanglement and Measurement
Michael Steiner, Ronald Rendell
Complementary relationships exist regarding interference properties of particles such as pattern visibility, predictability and distinguishability. Additionally, relationships are…
Interplay of quantum stochastic and dynamical maps to discern Markovian and non-Markovian transitions
A. R. Usha Devi, A. K. Rajagopal, Sudha +1
It is known that the dynamical evolution of a system, from an initial tensor product state of system and environment, to any two later times, t1,t2 (t2>t1), are both completely pos…
Kraus representation of quantum evolution and fidelity as manifestations of Markovian and non-Markovian avataras
A K Rajagopal, A R Usha Devi, R W Rendell
It is shown that the fidelity of the dynamically evolved system with its earlier time density matrix provides a signature of non-Markovian dynamics. Also, the fidelity associated w…
Revivals and entanglement from initially entangled mixed states of a damped Jaynes-Cummings model
R. W. Rendell, A. K. Rajagopal
An exact density matrix of a phase-damped Jaynes - Cummings model (JCM) with entangled Bell-like initial states formed from a model two-state atom and sets of adjacent photon numbe…
Robust and Fragile Entanglement of Three Qubits: Relation to Permutation Symmetry
A. K. Rajagopal, R. W. Rendell
Entanglement properties of a basic set of eight entangled three particle pure states possessing certain permutation symmetries are studied. They fall into four sets of two entangle…
Entanglement of a Double Dot with a Quantum Point Contact
Michael Steiner, R. W. Rendell
Entanglement between particle and detector is known to be inherent in the measurement process. Gurvitz recently analyzed the coupling of an electron in a double dot (DD) to a quant…
Decoherence, Correlation, and Entanglement in a Pair of Coupled Quantum Dissipative Oscillators
A. K. Rajagopal, R. W. Rendell
A pair of coupled quantum dissipative oscillators, serving as a model for a nanosystem, is here described by the Lindblad equation. Its dynamic evolution is shown to exhibit the fe…
Two Qubits in the Dirac Representation
A. K. Rajagopal, R. W. Rendell
A general two qubit system expressed in terms of the complete set of unit and fifteen traceless, Hermitian Dirac matrices, is shown to exhibit novel features of this system. The we…