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19982026
most citedEccentric Connectivity Index of Chemical Trees

107 citations

Showing quant-phShow all

28 papers · 1 filter

quant-ph2025★ 3 cited

Entropy dynamics for a harmonic propeller-shaped planar molecular quantum Brownian rotator

J. Jeknic-Dugic, I. Petrovic, M. Arsenijevic +1

Dynamic stability is vital for the operation and control of molecular nanodevices, particularly molecular cogwheels in an external harmonic field. We used the relative change in ro…

quant-ph2020★ 10 cited

Invertibility as a witness of Markovianity of the quantum dynamical maps

Jasmina Jeknić-Dugić, Momir Arsenijević, Miroljub Dugić

Markovianity of the quantum open system processes is a topic of the considerable current interest. Typically, invertibility is assumed to be non-essential for Markovianity of the o…

quant-ph2019★ 2 cited

Is there any reasonable dynamics for quantum subsystems within the unitary-only quantum theory?

M. Dugic, J. Jeknic-Dugic, M. Arsenijevic

The foundational studies of the standard, unitary-only quantum theory revolve around the kinematical aspects of quantum entanglement and the improper quantum mixtures. In this pape…

quant-ph2017★ 6 cited

Kraus operators for a pair of interacting qubits: a case study

Momir Arsenijevic, Jasmina Jeknic-Dugic, Miroljub Dugic

The Kraus form of the completely positive dynamical maps is appealing from the mathematical and the point of the diverse applications of the open quantum systems theory. Unfortunat…

quant-ph2017★ 1 cited

Complete positivity on the subsystems level

M. Arsenijevic, J. Jeknic-Dugic, M. Dugic

We consider complete positivity of dynamics regarding subsystems of an open composite quantum system, which is subject of a completely positive dynamics. By "completely positive dy…

quant-ph2016★ 5 cited

A minimalist approach to conceptualization of time in quantum theory

H. Kitada, J. Jeknic-Dugic, M. Arsenijevic +1

Ever since Schrodinger, Time in quantum theory is postulated Newtonian for every reference frame. With the help of certain known mathematical results, we show that the concept of t…

quant-ph2016

A top-down versus a bottom-up hidden-variables description of the Stern-Gerlach experiment

M. Arsenijevic, J. Jeknic-Dugic, M. Dugic

We employ the Stern-Gerlach experiment to highlight the basics of a minimalist, non-interpretational top-down approach to quantum foundations. Certain benefits of the here highligh…

quant-ph2015★ 9 cited

Generalized Kraus operators for the one-qubit depolarizing quantum channel

Momir Arsenijevic, Jasmina Jeknic-Dugic, Miroljub Dugic

Microscopic Hamiltonian models of the composite system "open system + environment" typically do not provide the operator-sum Kraus form of the open system's dynamical map. With the…

quant-ph2015★ 5 cited

Dynamical emergence of Markovianity in Local Time Scheme

J. Jeknic-Dugic, M. Arsenijevic, M. Dugic

Recently we pointed out the so-called Local Time Scheme as a novel approach to quantum foundations that solves the preferred pointer-basis problem. In this paper we introduce and a…

quant-ph2014★ 6 cited

A local-time-induced unique pointer basis

J. Jeknic-Dugic, M. Arsenijevic, M. Dugic

There is a solution to the problem of asymptotic completeness in many body scattering theory that offers a specific view of the quantum unitary dynamics which allows for the straig…

quant-ph2013★ 10 cited

Quantum Structures: A View of the Quantum World

Jasmina Jeknic-Dugic, Momir Arsenijevic, Miroljub Dugic

We offer a systematic account of decomposition of quantum systems into parts. Different decompositions (structures) are mutually linked via the proper linear canonical transformati…

quant-ph2013★ 4 cited

A Limitation of the Nakajima-Zwanzig projection method

M. Arsenijevic, J. Jeknic-Dugic, M. Dugic

There is current interest in dynamical description of dif- ferent decompositions of a quantum system into subsystems. We investi- gate usefulness of the Nakajima-Zwanzig projection…

quant-ph2012★ 3 cited

Asymptotic dynamics of the alternate degrees of freedom for a two-mode system: an analytically solvable model

M. Arsenijevic, J. Jeknic-Dugic, M. Dugic

The composite systems can be non-uniquely decomposed into parts (subsystems). Not all decompositions (structures) of a composite system are equally physically relevant. In this pap…

quant-ph2012★ 1 cited

Quantum Structures of the Hydrogen Atom

J. Jeknic-Dugic, M. Dugic, A. Francom +1

Modern quantum theory introduces quantum structures (decompositions into subsystems) as a new discourse that is not fully comparable with the classical-physics counterpart. To this…

quant-ph2011★ 15 cited

Quantum Correlations Relativity for Continuous Variable Systems

M. Dugic, M. Arsenijevic, J. Jeknic-Dugic

It is shown that a choice of degrees of freedom of a bipartite continuous variable system determines amount of non-classical correlations (quantified by discord) in the system's st…

quant-ph2011★ 11 cited

Quantum Structures of a Model-Universe: An Inconsistency with Everett Interpretation of Quantum Mechanics

J. Jeknic-Dugic, M. Dugic, A. Francom

We observe a Quantum Brownian Motion (QBM) Model Universe in conjunction with recently established Entanglement Relativity and Parallel Occurrence of Decoherence. The Parallel Occu…

quant-ph2011

The "Ghostly" Quantum Worlds

M. Dugic, D. Rakovic, J. Jeknic-Dugic +1

We present the foundations of a new emerging interpretation of quantum theory bearing wide-range implications. Physical basis of the interpretation is non-questionable yet relative…

quant-ph2010★ 3 cited

Parallel decoherence in composite quantum systems

M. Dugic, J. Jeknic-Dugic

For the standard Quantum Brownian Motion (QBM) model, we point out the occurrence of simultaneous (parallel), mutually irreducible and autonomous decoherence processes. Besides the…

quant-ph2006★ 48 cited

What is "system": the information-theoretic arguments

M. Dugic, J. Jeknic-Dugic

The problem of "what is 'system'?" is in the very foundations of modern quantum mechanics. Here, we point out the interest in this topic in the information-theoretic context. E.g.,…

quant-ph2005★ 42 cited

What is "system": some decoherence-theory arguments

Miroljub Dugic

We discuss the possibility of making the {\it initial} definitions of mutually different (possibly interacting, or even entangled) systems in the context of decoherence theory. We…

quant-ph2005★ 7 cited

On decoherence in noncommutative plane with perpendicular magnetic field

B. Dragovich, M. Dugic

In the last years noncommutative quantum mechanics has been investigated intensively. We consider the influence of magnetic field on decoherence of a system in the noncommutative q…

quant-ph2002★ 2 cited

Quantum Parallelism in Quantum Information Processing

Miroljub Dugic, Milan M. Cirkovic

We investigate distinguishability (measured by fidelity) of the initial and the final state of a qubit, which is an object of the so-called nonideal quantum measurement of the firs…

quant-ph2002★ 2 cited

On a Possible Physical Metatheory of Consciousness

Miroljub Dugic, Milan M. Cirkovic, Dejan Rakovic

We show that the modern quantum mechanics, and particularly the theory of decoherence, allows formulating a sort of a physical metatheory of consciousness. Particularly, the analys…

quant-ph2002★ 11 cited

Quantum information processing: The case of vanishing interaction energy

M. Dugic, M. M. Cirkovic

We investigate the rate of operation of quantum "black boxes" ("oracles") and point out the possibility of performing an operation by a quantum "oracle" whose average energy equals…