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Iman Marvian

Assistant Professor in the Department of Electrical and Computer Engineering
Electrical and Computer Engineering
186 Physics Bldg., Box 90305, Durham, NC 27708
186 Physics Bldg., Box 90305, Durham, NC 27708

Selected Publications


Operational Interpretation of Quantum Fisher Information in Quantum Thermodynamics

Journal Article Phys. Rev. Lett. · December 8, 2021 In the framework of quantum thermodynamics preparing a quantum system in a general state requires the consumption of two distinct resources, namely, work and coherence. It has been shown that the work cost of preparing a quantum state is determined by its ... Link to item Cite

Qudit circuits with SU(d) symmetry: Locality imposes additional conservation laws

Journal Article · May 26, 2021 Local symmetric quantum circuits provide a simple framework to study the dynamics and phases of complex quantum systems with conserved charges. However, some of their basic properties have not yet been understood. Recently, it has been shown that such quan ... Link to item Cite

Inaccessible information in probabilistic models of quantum systems, non-contextuality inequalities and noise thresholds for contextuality

Journal Article · March 12, 2020 Classical probabilistic models of (noisy) quantum systems are not only relevant for understanding the non-classical features of quantum mechanics, but they are also useful for determining the possible advantage of using quantum resources for information pr ... Link to item Cite

Locality and Conservation Laws: How, in the presence of symmetry, locality restricts realizable unitaries

Journal Article Nat. Phys. · March 11, 2020 According to an elementary result in quantum computing, any unitary transformation on a composite system can be generated using 2-local unitaries, i.e., those that act only on two subsystems. Beside its fundamental importance in quantum computing, this res ... Link to item Cite

Coherence distillation machines are impossible in quantum thermodynamics

Journal Article Nature Communications · January 7, 2020 AbstractThe role of coherence in quantum thermodynamics has been extensively studied in the recent years and it is now well-understood that coherence between different energy eigenstates is a resource independent of other t ... Full text Open Access Cite

Emergent Prethermalization Signatures in Out-of-Time Ordered Correlations

Journal Article Physical Review Letters · August 30, 2019 Full text Cite

Entropic Energy-Time Uncertainty Relation

Journal Article Physical Review Letters · March 12, 2019 Full text Cite

Quantum singular-value decomposition of nonsparse low-rank matrices

Journal Article Physical Review A · January 24, 2018 Full text Cite

An efficient quantum algorithm for spectral estimation

Journal Article New Journal of Physics · March 1, 2017 Full text Cite

Symmetry-protected topological entanglement

Journal Article Physical Review B · January 9, 2017 Featured Publication Full text Cite

From clocks to cloners: Catalytic transformations under covariant operations and recoverability

Journal Article · August 25, 2016 There are various physical scenarios in which one can only implement operations with a certain symmetry. Under such restriction, a system in a symmetry-breaking state can be used as a catalyst, e.g. to prepare another system in a desired symmetry-breaking ... Link to item Cite

Universal Quantum Emulator

Journal Article · June 8, 2016 We propose a quantum algorithm that emulates the action of an unknown unitary transformation on a given input state, using multiple copies of some unknown sample input states of the unitary and their corresponding output states. The algorithm does not assu ... Link to item Cite

Quantum speed limits, coherence, and asymmetry

Journal Article Physical Review A · May 24, 2016 Full text Cite

Exponential suppression of decoherence and relaxation of quantum systems using energy penalty

Journal Article · February 9, 2016 One of the main methods for protecting quantum information against decoherence is to encode information in the ground subspace (or the low energy sector) of a Hamiltonian with a large energy gap which penalizes errors from environment. The protecting Hamil ... Link to item Cite

Quantum Speed Limits for Leakage and Decoherence

Journal Article Physical Review Letters · November 18, 2015 Full text Cite

Operational Interpretation of Quantum Fisher Information in Quantum Thermodynamics

Journal Article Phys. Rev. Lett. · December 8, 2021 In the framework of quantum thermodynamics preparing a quantum system in a general state requires the consumption of two distinct resources, namely, work and coherence. It has been shown that the work cost of preparing a quantum state is determined by its ... Link to item Cite

Qudit circuits with SU(d) symmetry: Locality imposes additional conservation laws

Journal Article · May 26, 2021 Local symmetric quantum circuits provide a simple framework to study the dynamics and phases of complex quantum systems with conserved charges. However, some of their basic properties have not yet been understood. Recently, it has been shown that such quan ... Link to item Cite

Inaccessible information in probabilistic models of quantum systems, non-contextuality inequalities and noise thresholds for contextuality

Journal Article · March 12, 2020 Classical probabilistic models of (noisy) quantum systems are not only relevant for understanding the non-classical features of quantum mechanics, but they are also useful for determining the possible advantage of using quantum resources for information pr ... Link to item Cite

Locality and Conservation Laws: How, in the presence of symmetry, locality restricts realizable unitaries

Journal Article Nat. Phys. · March 11, 2020 According to an elementary result in quantum computing, any unitary transformation on a composite system can be generated using 2-local unitaries, i.e., those that act only on two subsystems. Beside its fundamental importance in quantum computing, this res ... Link to item Cite

Coherence distillation machines are impossible in quantum thermodynamics

Journal Article Nature Communications · January 7, 2020 AbstractThe role of coherence in quantum thermodynamics has been extensively studied in the recent years and it is now well-understood that coherence between different energy eigenstates is a resource independent of other t ... Full text Open Access Cite

Emergent Prethermalization Signatures in Out-of-Time Ordered Correlations

Journal Article Physical Review Letters · August 30, 2019 Full text Cite

Entropic Energy-Time Uncertainty Relation

Journal Article Physical Review Letters · March 12, 2019 Full text Cite

Quantum singular-value decomposition of nonsparse low-rank matrices

Journal Article Physical Review A · January 24, 2018 Full text Cite

An efficient quantum algorithm for spectral estimation

Journal Article New Journal of Physics · March 1, 2017 Full text Cite

Symmetry-protected topological entanglement

Journal Article Physical Review B · January 9, 2017 Featured Publication Full text Cite

From clocks to cloners: Catalytic transformations under covariant operations and recoverability

Journal Article · August 25, 2016 There are various physical scenarios in which one can only implement operations with a certain symmetry. Under such restriction, a system in a symmetry-breaking state can be used as a catalyst, e.g. to prepare another system in a desired symmetry-breaking ... Link to item Cite

Universal Quantum Emulator

Journal Article · June 8, 2016 We propose a quantum algorithm that emulates the action of an unknown unitary transformation on a given input state, using multiple copies of some unknown sample input states of the unitary and their corresponding output states. The algorithm does not assu ... Link to item Cite

Quantum speed limits, coherence, and asymmetry

Journal Article Physical Review A · May 24, 2016 Full text Cite

Exponential suppression of decoherence and relaxation of quantum systems using energy penalty

Journal Article · February 9, 2016 One of the main methods for protecting quantum information against decoherence is to encode information in the ground subspace (or the low energy sector) of a Hamiltonian with a large energy gap which penalizes errors from environment. The protecting Hamil ... Link to item Cite

Quantum Speed Limits for Leakage and Decoherence

Journal Article Physical Review Letters · November 18, 2015 Full text Cite

Quantum Error Suppression with Commuting Hamiltonians: Two Local is Too Local

Journal Article Physical Review Letters · December 31, 2014 Featured Publication Full text Cite

A Generalization of Schur–Weyl Duality with Applications in Quantum Estimation

Journal Article Communications in Mathematical Physics · October 2014 Full text Cite

Asymmetry properties of pure quantum states

Journal Article Physical Review A · July 30, 2014 Full text Cite

Extending Noether’s theorem by quantifying the asymmetry of quantum states

Journal Article Nature Communications · May 13, 2014 Featured Publication Full text Cite