Results 21 to 30 of about 1,063,085 (285)

Number state filtered coherent states

Quantum Information Processing, 2018
Number state filtering in coherent states leads to sub-Poissonian photon statistics. These states are more suitable for phase estimation when compared with the coherent states. Nonclassicality of these states is quantified in terms of the negativity of the Wigner function and the entanglement potential.
Meher, Nilakantha, Sivakumar, S.
openaire   +2 more sources

Circuit complexity for coherent states

Journal of High Energy Physics, 2018
We examine the circuit complexity of coherent states in a free scalar field theory, applying Nielsen’s geometric approach as in [1]. The complexity of the coherent states have the same UV divergences as the vacuum state complexity and so we consider the ...
Minyong Guo, Juan Hernandez, Robert C. Myers, Shan-Ming Ruan   +3 more
doaj   +1 more source

INTERFERENCE OF MULTI-MODE WEAK COHERENT STATES FOR TWIN-FIELD QUANTUM COMMUNICATION APPLICATIONS [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2019
Subject of Research. We present the results of analytical research and experimental implementation of quantum key distribution protocol based on multi-mode weak coherent states with untrusted detection node. Such states are based on interference of phase-
Vladimir V. Chistiakov, Andrei A. Gaidash, Anton V. Kozubov, Artur V. Gleim   +3 more
doaj   +1 more source

The Schwinger SU(3) Construction - II: Relations between Heisenberg-Weyl and SU(3) Coherent States [PDF]

, 2002
The Schwinger oscillator operator representation of SU(3), studied in a previous paper from the representation theory point of view, is analysed to discuss the intimate relationships between standard oscillator coherent state systems and systems of SU(3)
Arvind, Chaturvedi S., Chaturvedi S., Gnutzmann S., Mukunda N., Mukunda N., N. Mukunda, Roy S. M., S. Chaturvedi, Sen D.   +9 more
core   +2 more sources

Coherent states for exactly solvable potentials [PDF]

, 2003
A general algebraic procedure for constructing coherent states of a wide class of exactly solvable potentials e.g., Morse and P{\"o}schl-Teller, is given.
A. Chenaghlou, A. Frank, A. Gangopadhyaya, A. Jellal, A. ten Wolde, A.H. Kinani, A.O. Barut, B. Roy, B. Sutherland, C. Brif, C.C. Gerry, E.A. Shapiro, E.C.G. Sudarshan, F. Cooper, F. Grobmann, G.S. Agarwal, G.S. Agarwal, H. Fakhri, H. Mack, H.C. Fu, I.Sh. Averbukh, J. Ahn, J. Banerji, J.A. Yeazell, J.A. Yeazell, J.P. Antoine, J.P. Gazeau, J.R. Klauder, J.R. Klauder, J.R. Klauder, M.G. Benedict, M.G.A. Crawford, M.G.A. Crawford, M.J.W. Hall, M.M. Nieto, M.M. Nieto, M.M. Nieto, M.M. Nieto, M.M. Nieto, M.S. Child, M.S. Safronova, N. Ba An, N. Gurappa, N. Gurappa, N. Gurappa, O.V. Man’ko, P. Jensen, P. Majumdar, P. Shanta, Prasanta K. Panigrahi, R. Bluhm, R. Bluhm, R.F. Fox, R.J. Glauber, R.L. de Filho, S. Mancini, S.A. Polshin, S.J. van Enk, T. Shreecharan, V.I. Man’ko, W.H. Zurek, W.M. Zhang, X.G. Wang, Z.D. Gaeta   +63 more
core   +1 more source

GHZ-type and W-type entangled coherent states: generation and Bell-type inequality tests without photon counting [PDF]

, 2006
We study GHZ-type and W-type three-mode entangled coherent states. Both the types of entangled coherent states violate Mermin's version of the Bell inequality with threshold photon detection (i.e., without photon counting).
D. F. Walls, D. M. Greenberger, H. Jeong, Hyunseok Jeong, M. Paternostro, Nguyen Ba An, S. Bell, W. H. Pres   +7 more
core   +2 more sources

Nonclassicalities of two-mode photon‑added coherent states

Results in Physics
One of the most promising nonclassical states in the context of quantum optics are hybrid coherent states, which include a combination of coherent states and single-photon-added coherent states.
Hassan Sobhani, Hoda Lotfipoor, Mohamad Taghi Dejpasand   +2 more
doaj   +1 more source

Partial Recovery of Coherence Loss in Coherence-Assisted Transformation

Entropy, 2023
Coherence-assisted transformation under incoherent operations is discussed. For transformation from the pure state to the mixed state, we show that the coherence loss can be partially recovered by adding auxiliary coherent states.
Zhaobing Fan, Zewen Shan, Haitao Ma
doaj   +1 more source

Interpolating Coherent States for Heisenberg-Weyl and Single-Photon SU(1,1) Algebras [PDF]

, 2001
New quantal states which interpolate between the coherent states of the Heisenberg_Weyl and SU(1,1) algebras are introduced. The interpolating states are obtained as the coherent states of a closed and symmetric algebra which interpolates between the two
Akhiezer N I, Ban M, Barut A O, Bateman H, Brif C, Brif C, Brif C, Buck B, DasGupta Ananda, Fu H, Gerry G C, Gradshteyn I S, Inonu E, Klauder J R, Klauder J R, Lynch R, Man'ko V I, Mandel L, Perelomov A, S Sivakumar, Saletan E J, Satyanarayana M V, Sivakumar S, Stoler D, Tamarkin J D, Wodkiewicz K   +25 more
core   +2 more sources

Generalization of group-theoretic coherent states for variational calculations

Physical Review Research, 2021
We introduce families of pure quantum states that are constructed on top of the well-known Gilmore-Perelomov group-theoretic coherent states. We do this by constructing unitaries as the exponential of operators quadratic in Cartan subalgebra elements and
Tommaso Guaita, Lucas Hackl, Tao Shi, Eugene Demler, J. Ignacio Cirac   +4 more
doaj   +1 more source