41 citations · 135 across the 14 of their papers we have counts for
14 papers
Slipping and rolling on a rough accelerating surface
Mohammad Khorrami, Amir Aghamohammadi, Cina Aghamohammadi
The two-dimensional motion of an object on a moving rough horizontal plane is investigated. Two cases are studied: the plane having a translational acceleration, and a rotating pla…
On swimmer's strategies in various currents
Amir Aghamohammadi, Cina Aghamohammadi, Saman Moghimi-Araghi
Finding an optimum strategy to reach a certain destination by swimming in a background flow is an interesting question which leads to non-trivial results and swimming paths. Here w…
Optimizing Quantum Models of Classical Channels: The reverse Holevo problem
S. Loomis, J. R. Mahoney, C. Aghamohammadi +1
Given a classical channel---a stochastic map from inputs to outputs---the input can often be transformed to an intermediate variable that is informationally smaller than the input.…
Extreme Quantum Advantage for Rare-Event Sampling
C. Aghamohammadi, S. P. Loomis, J. R. Mahoney +1
We introduce a quantum algorithm for efficient biased sampling of the rare events generated by classical memoryful stochastic processes. We show that this quantum algorithm gives a…
Thermodynamics of Random Number Generation
C. Aghamohammadi, J. P. Crutchfield
We analyze the thermodynamic costs of the three main approaches to generating random numbers via the recently introduced Information Processing Second Law. Given access to a specif…
The Markov Memory for Generating Rare Events
C. Aghamohammadi, J. P. Crutchfield
We classify the rare events of structured, memoryful stochastic processes and use this to analyze sequential and parallel generators for these events. Given a stochastic process, w…
Extreme Quantum Advantage when Simulating Strongly Coupled Classical Systems
C. Aghamohammadi, J. R. Mahoney, J. P. Crutchfield
Classical stochastic processes can be generated by quantum simulators instead of the more standard classical ones, such as hidden Markov models. One reason for using quantum simula…
Not All Fluctuations are Created Equal: Spontaneous Variations in Thermodynamic Function
James P. Crutchfield, Cina Aghamohammadi
Almost all processes -- highly correlated, weakly correlated, or correlated not at all---exhibit statistical fluctuations. Often physical laws, such as the Second Law of Thermodyna…
The Ambiguity of Simplicity
Cina Aghamohammadi, John R. Mahoney, James P. Crutchfield
A system's apparent simplicity depends on whether it is represented classically or quantally. This is not so surprising, as classical and quantum physics are descriptive frameworks…
A Closed-Form Shave from Occam's Quantum Razor: Exact Results for Quantum Compression
Paul M. Riechers, John R. Mahoney, Cina Aghamohammadi +1
The causal structure of a stochastic process can be more efficiently transmitted via a quantum channel than a classical one, an advantage that increases with codeword length. While…
Occam's Quantum Strop: Synchronizing and Compressing Classical Cryptic Processes via a Quantum Channel
J. R. Mahoney, C. Aghamohammadi, J. P. Crutchfield
A stochastic process's statistical complexity stands out as a fundamental property: the minimum information required to synchronize one process generator to another. How much infor…
Permutation approach, high frequency trading and variety of micro patterns in financial time series
Cina Aghamohammadi, Mehran Ebrahimian, Hamed Tahmooresi
Permutation approach is suggested as a method to investigate financial time series in micro scales. The method is used to see how high frequency trading in recent years has affecte…
Externally driven one-dimensional Ising model
Amir Aghamohammadi, Cina Aghamohammadi, Mohammad Khorrami
A one dimensional kinetic Ising model at a finite temperature on a semi-infinite lattice with time varying boundary spins is considered. Exact expressions for the expectation value…
Slipping and Rolling on an Inclined Plane
Cina Aghamohammadi, Amir Aghamohammadi
In the first part of the article using a direct calculation two-dimensional motion of a particle sliding on an inclined plane is investigated for general values of friction coeffic…