Results 11 to 20 of about 25,760 (283)

Sudden Death of Entanglement

Science, 2009
A new development in the dynamical behavior of elementary quantum systems is the surprising discovery that correlation between two quantum units of information called qubits can be degraded by environmental noise in a way not seen previously in studies of dissipation.
Yu, Ting, Eberly, J. H.
exaly   +6 more sources

Sudden Birth versus Sudden Death of Entanglement in Multipartite Systems [PDF]

Physical Review Letters, 2008
We study the entanglement dynamics of two cavities interacting with independent reservoirs. Expectedly, we observe that, as the cavity entanglement is depleted, it is transferred to the reservoir degrees of freedom. We find that when the cavity entanglement suddenly disappear, the reservoir entanglement suddenly and necessarily appears.
Lopez, C. E., Romero, G., Lastra, F., Solano, E., Retamal, J. C.   +4 more
openaire   +12 more sources

Entanglement microscopy and tomography in many-body systems. [PDF]

Nat Commun
Quantum entanglement uncovers the essential principles of quantum matter, yet determining its structure in realistic many-body systems poses significant challenges.
Wang TT, Song M, Lyu L, Witczak-Krempa W, Meng ZY.   +4 more
europepmc   +2 more sources

Sudden Death of Entanglement of Two Jaynes-Cummings Atoms [PDF]

Journal of Physics B: Atomic, Molecular and Optical Physics, 2006
We investigate entanglement dynamics of two isolated atoms, each in its own Jaynes-Cummings cavity. We show analytically that initial entanglement has an interesting subsequent time evolution, including the so-called sudden death effect.Comment: 3 pages,
Diosi L, J H Eberly, Jaynes E T, Joos E, Muhammed Yönaç, Ting Yu, Yu T Eberly J H, Yu T Eberly J H, Yönac M Yu T Eberly J H, Zurek W H   +9 more
core   +2 more sources

Disentanglement Dynamics in Nonequilibrium Environments. [PDF]

Entropy (Basel), 2022
We theoretically study the non-Markovian disentanglement dynamics of a two-qubit system coupled to nonequilibrium environments with nonstationary and non-Markovian random telegraph noise statistical properties. The reduced density matrix of the two-qubit
Chen M, Chen H, Han T, Cai X.
europepmc   +2 more sources

Geometry of Entanglement Sudden Death: Explicit Examples [PDF]

AIP Conference Proceedings, 2008
In open quantum systems, entanglement can vanish faster than coherence. This phenomenon is usually called sudden death of entanglement. In [M. O. Terra Cunha, New J. Phys.
Andrei Yu. Khrennikov, Christopher Fuchs, Gregg Jaeger, Guillaume Adenier, Jan-Åke Larsson, Luigi Accardi, Marcelo O. Terra Cunha, Raphael C. Drumond, Stig Stenholm   +8 more
core   +2 more sources

Do all states undergo sudden death of entanglement at finite temperature? [PDF]

Physical Review A, 2007
In this paper we consider the decay of quantum entanglement, quantified by the concurrence, of a pair of two-level systems each of which is interacting with a reservoir at finite temperature T.
Asma Al-Qasimi, Daniel F. V. James, L. Diósi, T. Yu   +3 more
core   +2 more sources

Non-Markovian noise mitigation in quantum teleportation: enhancing fidelity and entanglement. [PDF]

Sci Rep
Maintaining quantum coherence and entanglement in the presence of environmental noise, particularly within non-Markovian contexts, represents a significant challenge for the progression of quantum information science and technology.
Zhang H, Han X, Zhang G, Li L, Cheng L, Wang J, Zhang Y, Xia Y, Xia C.   +8 more
europepmc   +2 more sources

Harnessing quantum entanglement and heat current of a non-equilibrium spin system at high temperatures. [PDF]

Sci Rep
The challenge of harnessing entanglement during the non-equilibrium dynamics of open quantum systems, especially at high temperatures, is highly prominent within recent scientific researches. Due to the ongoing trend of miniaturization of quantum devices
Mojaveri B, Ahmadi Z.
europepmc   +2 more sources

Decoherence-Induced Sudden Death of Entanglement and Bell Nonlocality

Photonics, 2022
Decoherence due to the unwanted interaction between a quantum system and environment leads to the degradation of quantum coherence. In particular, for an entangled state, decoherence makes a loss of entanglement and Bell nonlocality known as entanglement
Dong-Gil Im, Yoon-Ho Kim
doaj   +1 more source