Research Explorer

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Researcher

Alexis De Vos

Publications & Research Data

Awards & Distinctions

163 Results

2025

Quantum computing with the subgroup YU(n) of the unitary group U(n)

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

Two small quantum building-blocks suffice

2022

Conjectured DXZ decompositions of a unitary matrix

Alexis De VosMartin IdelStijn De Baerdemacker

A1 Journal Article in LINEAR ALGEBRA AND ITS APPLICATIONS

Reversible computation in integrated photonics

2020

Endoreversible models for the thermodynamics of computing

A1 Journal Article in ENTROPY

The decomposition of an arbitrary 2^w X 2^w unitary matrix into signed permutation matrices

Alexis De VosStijn De Baerdemacker

A1 Journal Article in LINEAR ALGEBRA AND ITS APPLICATIONS

2019

A Birkhoff connection between quantum circuits and linear classical reversible circuits

Alexis De VosStijn De Baerdemacker

The Birkhoff theorem for unitary matrices of prime-power dimension

Alexis De VosStijn De Baerdemacker

A1 Journal Article in LINEAR ALGEBRA AND ITS APPLICATIONS

2018

A unified approach to quantum computation and classical reversible computation

Alexis De VosStijn De Baerdemacker

Translating between the roots of the identity in quantum computers

Wouter CastryckJeroen DemeyerAlexis De VosOliver KeszoczeMathias Soeken

2017

The Birkhoff theorem for unitary matrices of arbitrary dimensions

Stijn De BaerdemackerAlexis De VosLin ChenLi Yu

A1 Journal Article in LINEAR ALGEBRA AND ITS APPLICATIONS

2016

Block-ZXZ synthesis of an arbitrary quantum circuit

Alexis De VosStijn De Baerdemacker

A1 Journal Article in PHYSICAL REVIEW A

The Birkhoff theorem for unitary matrices of prime dimension

Alexis De VosStijn De Baerdemacker

A1 Journal Article in LINEAR ALGEBRA AND ITS APPLICATIONS

The decomposition of U(n) into XU(n) and ZU(n)

Alexis De VosStijn De Baerdemacker

A1 Journal Article in JOURNAL OF MULTIPLE-VALUED LOGIC AND SOFT COMPUTING

The group zoo of classical reversible computing and quantum computing

Alexis De VosStijn De Baerdemacker

Bookchapter in Advances in unconventional computing, volume 1 : theory

The synthesis of a quantum circuit

Alexis De VosStijn De Baerdemacker

Bookchapter in Problems and new solutions in the Boolean domain

2015

On two subgroups of U(n), useful for quantum computing

Alexis De VosStijn De Baerdemacker

Thermal modelling and evaluation of planar spiral inductors

Ioannis PapagiannopoulosAlexis De VosGilbert De MeyVasilis Chatziathanasiou

2014

A technology based complexity model for reversible Cuccaro ripple-carry adder

Stéphane BurignatAlexis De Vos

A2 Journal Article in JOURNAL OF LOW POWER ELECTRONICS

Designing garbage-free reversible implementations of the integer cosine transform

Alexis De VosStéphane BurignatRobert GlückTorben Ægidius MogensenHolger Bock AxelsenMichael Kirkedal ThomsenEva RotenbergTetsuo Yokoyama

A1 Journal Article in ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS

Early pioneers to reversible computation

Paweł KerntopfRadomir StankovićAlexis De VosJaakko Astola

Energy consumption by reversible circuits in the 130 nm and 65 nm nodes

Stéphane BurignatAlexis De Vos

A2 Journal Article in JOURNAL OF LOW POWER ELECTRONICS

Matrix calculus for classical and quantum circuits

Alexis De VosStijn De Baerdemacker

A1 Journal Article in ACM JOURNAL ON EMERGING TECHNOLOGIES IN COMPUTING SYSTEMS

On two subgroups of U(n), important for quantum computing

Alexis De VosStijn De Baerdemacker

Scaling a unitary matrix

Alexis De VosStijn De Baerdemacker

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

The decomposition of U(n) into XU(n) and ZU(n)

Alexis De VosStijn De Baerdemacker

The synthesis of a quantum circuit

Alexis De VosStijn De Baerdemacker

2013

Influence of lateral heat diffusion on the thermal impedance measurements of photovoltaic panels

Gilbert De MeyJaroslaw WyrzutowiczAlexis De VosWitold MarandaAndrzej Napieralski

A1 Journal Article in SOLAR ENERGY MATERIALS AND SOLAR CELLS

The NEGATOR as a basic building block for quantum circuits

Alexis De VosStijn De Baerdemacker

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

2012

Garbageless reversible implementation of integer linear transformations

Stéphane BurignatKenneth VermeirschAlexis De VosMichael Thomsen

Logics between classical reversible logic and quantum logic

Alexis De VosStijn De Baerdemacker

Reversible computation, quantum computation and computer architectures in between

Alexis De VosMichiel BoesStijn De Baerdemacker

A1 Journal Article in JOURNAL OF MULTIPLE-VALUED LOGIC AND SOFT COMPUTING

Reversible computation: third international workshop, Gent, Belgium, July 4-5, 2011, Revised Papers

Reversible implementation of a discrete integer linear transformation

Alexis De VosStéphane BurignatMichael Kirkedal Thomsen

A1 Journal Article in JOURNAL OF MULTIPLE-VALUED LOGIC AND SOFT COMPUTING

The computational power of the square root of NOT

Steven VandenbrandeRaphaël Van LaerAlexis De Vos

The group of dyadic unitary matrices

Alexis De VosRaphaël Van LaerSteven Vandenbrande

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

The roots of the NOT gate

Alexis De VosStijn De Baerdemacker

2011

Creating subgroups of U(2^w) for quantum-minus computers

Alexis De VosMichiel Boes

Interfacing reversible pass-transistor CMOS chips with conventional restoring CMOS circuits

Stéphane BurignatMichael Kirkedal ThomsenMichal KlimczakMariusz OlczakAlexis De Vos

Symmetry groups for the decomposition of reversible computers, quantum computers, and computers in between

Alexis De VosStijn De Baerdemacker

A1 Journal Article in SYMMETRY-BASEL

Test of a majority-based reversible (quantum) 4 bits ripple-carry adder in adiabatic calculation

Stéphane BurignatAlexis De Vos

Towards the limits of cascaded reversible (quantum-inspired) circuits

Stéphane BurignatMariusz OlczacMichal KlimczakAlexis De Vos

2010

Almost-classical quantum computers

Michiel BoesAlexis De VosJan De Beule

Decomposition of a linear reversible computer: digital versus analog

Alexis De VosStijn De Baerdemacker

A1 Journal Article in INTERNATIONAL JOURNAL OF UNCONVENTIONAL COMPUTING

Reversible computation, quantum computation, and computer architectures in between

Alexis De VosMichiel BoesStijn De Baerdemacker

Reversible computing: fundamentals, quantum computing, and applications

Reversible implementation of a disrete linear transformation

Alexis De VosStéphane BurignatMichael Thomsen

Simulation of the influence of the absorption window for stacked and monolithic organic tandem solar cells

Ben MinnaertMarc BurgelmanAlexis De VosPeter Veelaert

A1 Journal Article in SOLAR ENERGY MATERIALS AND SOLAR CELLS

The influence of the Yarkovsky effect on the global temperature

Alexis De VosAnna Kaplar

A1 Journal Article in AMERICAN JOURNAL OF PHYSICS

2009

Can reversible electronics avoid thermal problems?

Computing with the square root of NOT

Alexis De VosJan De BeuleLeo Storme

A2 Journal Article in SERDICA JOURNAL OF COMPUTING

Modelling of solar cells with down-conversion of high energy photons, anti-reflection coatings and light trapping

Alexis De VosAleksandra SzymanskaViorel Badescu

A1 Journal Article in ENERGY CONVERSION AND MANAGEMENT

Multiple-valued reversible logic circuits

Alexis De VosYvan Van Rentergem

A1 Journal Article in JOURNAL OF MULTIPLE-VALUED LOGIC AND SOFT COMPUTING

Reversible computer hardware

Reversible logic

Bookchapter in Advances in mathematics research

2008

From group theory to reversible computers

Alexis De VosYvan Van Rentergem

A1 Journal Article in INTERNATIONAL JOURNAL OF UNCONVENTIONAL COMPUTING

Networks for reversible logic

Alexis De VosYvan Van Rentergem

Reversible Fourier transform chip

Mariusz SkonecznyYvan Van RentergemAlexis De Vos

The minimum energy for a one bit computation: A proof of the Landauer limit

Gilbert De MeyAlexis De Vos

The shape of the SNF as a source of information

Bernd SteinbachAlexis De Vos

Thermodynamics of solar energy conversion

Young subgroups for reversible computers

Alexis De VosYvan Van Rentergem

A1 Journal Article in ADVANCES IN MATHEMATICS OF COMMUNICATIONS

2007

Improved model for solar cells with down-conversion and down-shifting of high-energy photons

Viorel BadescuAlexis De VosAlina Mihaela BadescuAleksandra Szymanska

A1 Journal Article in JOURNAL OF PHYSICS D-APPLIED PHYSICS

Influence of some design parameters on the efficiency of solar cells with down-conversion and down shifting of high-energy photons

Viorel BadescuAlexis De Vos

A1 Journal Article in JOURNAL OF APPLIED PHYSICS

Reversible computers

Alexis De VosY VAN RENTERGEMB GUYD TONDEUR

Six synthesis methods for reversible logic

Yvan Van RentergemAlexis De VosK DE KEYSER

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

Synthesis and optimization of reversible circuits

Y VAN RENTERGEMAlexis De VosM MILLER

Synthesis of reversible logic for nanoelectronic circuits

Alexis De VosYvan Van Rentergem

A1 Journal Article in INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS

2006

Computing in finite time

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

From group theory to reversible computers

Alexis De VosYvan Van Rentergem

Bookchapter in From Utopian to Genuine Unconventional Computers

Group theory for reversible logic

Alexis De VosYvan Van Rentergem

The decomposition of an arbitrary reversible logic circuit

Alexis De VosYvan Van RentergemKoen De Keyser

A1 Journal Article in JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL

Using group theory in reversible computing

Yvan Van RentergemAlexis De VosKoen De Keyser

2005

Energy dissipation in reversible logic

Alexis De VosYvan Van Rentergem

Implementing an arbitrary reversible logic gate

Yvan Van RentergemAlexis De VosLeo Storme

A1 Journal Article in JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL

Modelling solar cells with down converter

Alexis De VosV BADESCUA CERECEANU

A2 Journal Article in Scientific Bulletin of the University Politehnica of Bucharest, Series A: Applied Mathematics and Physics

Optimal design of a reversible full adder

Yvan Van RentergemAlexis De Vos

A2 Journal Article in International Journal of Unconventional Computing

Power consumption in reversible logic addressed by a ramp voltage

Alexis De VosYvan Van Rentergem

Reversible computing: from mathematical group theory to electronical circuit experiment

Alexis De VosYvan Van Rentergem

Reversible full adders applying Fredkin gates

Yvan Van RentergemAlexis De Vos

Synthesis of reversible circuits

Alexis De VosYvan Van Rentergem

The entropy of a mixture of probability distributions

A2 Journal Article in Entropy

2004

All non-linear reversible logic gates are r-universal

Alexis De VosLeo Storme

r-Universal reversible logic gates

Alexis De VosLeo Storme

A1 Journal Article in JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL

Relaxation oscillator circuit design for image segmentation

J KOWALSKIM STRZELECKIAlexis De Vos

2003

Designing a reversible chip

Filip BeunisAlexis De Vos

Lossless Computing

Optimizing reversible chips

Alexis De VosFilip Beunis

The current-voltage characteristic of the ideal two-terminal tandem solar cell

A1 Journal Article in PROGRESS IN PHOTOVOLTAICS

2002

A reversible carry-look-ahead adder using control gates.

Bart DesoeteAlexis De Vos

A1 Journal Article in INTEGRATION-THE VLSI JOURNAL

ASIC for temperature monitoring in IPM with VDMOS transistors.

Z SZCZEPANIAKT WIDERSKIM SIBINSKIAdam NogawskiAlexis De VosZ LISIK

Generating the group of reversible logic gates.

Alexis De VosBirger RaaLeo Storme

A1 Journal Article in JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL

The expectation value of the entropy of a digital message.

A1 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

2001

Control gates as building blocks for reversible computers

Alexis De VosBart DesoeteF JANIAKAdam Nogawski

Parallel weighted median image filter based on cellullar neural network paradigm.

J KOWALSKIT KACPRZAKAlexis De Vos

Statistical thermodynamic foundation for photovoltaic and photothermal conversion. IV. Solar cells with larger-than-unity quantum efficiency revisited.

V BADESCUP LANDSBERGAlexis De VosBart Desoete

A1 Journal Article in JOURNAL OF APPLIED PHYSICS

2000

A VLSI circuit idea for cellular neural network based weighted median image filter.

J KOWALSKIT KACPRZAKAlexis De Vos

Constructal theory of economics structure generation in space and time.

A BEJANV BADESCUAlexis De Vos

A1 Journal Article in ENERGY CONVERSION AND MANAGEMENT

Constructal theory of economics.

A BEJANV BADESCUAlexis De Vos

A1 Journal Article in APPLIED ENERGY

Design of reversible digital computers

Alexis De VosBart DesoeteArtur AdamskiP PIERTZAKM SIBINSKIT WIDERSKI

Design of reversible logic circuits by means of control gates.

Alexis De VosBart DesoeteArtur AdamskiP PIETRZAKM SIBINSKIT WIDERSKI

A1 Journal Article in INTEGRATED CIRCUIT DESIGN, PROCEEDINGS

Equipartition principles in finite-time thermodynamics.

Alexis De VosBart Desoete

A1 Journal Article in JOURNAL OF NON-EQUILIBRIUM THERMODYNAMICS

Thermodynamics of energy conversion and transport

Thermodynamics of photovoltaics

Bookchapter in Thermodynamics of energy conversion and transport

1999

Analog switched-capacitor filter bank for audio signal processing.

Alexis De VosJean-Pierre MartensA KUBIAK

Endoreversible thermodynamics versus economics.

A1 Journal Article in ENERGY CONVERSION AND MANAGEMENT

Feynman's reversible logic gates, implemented in silicon.

Bart DesoeteAlexis De Vos

Fundamental limits of power dissipation in digital electronics.

Group theoretical aspects of reversible logic gates

Leo StormeAlexis De VosG Jacobs

A2 Journal Article in JOURNAL OF UNIVERSAL COMPUTER SCIENCE

How to unify solar energy converters and Carnot engines

Bookchapter in Thermodynamic Optimization of Complex Energy Systems

Kohonen neural network chip: preliminary results of circuit test.

J KOWALSKIM STRZELECKIAlexis De Vos

Reversible computing

A1 Journal Article in PROGRESS IN QUANTUM ELECTRONICS

1998

On the ideal performance of solar cells with larger-than-unity quantum efficiency.

Alexis De VosB DESOETE

A1 Journal Article in SOLAR ENERGY MATERIALS AND SOLAR CELLS

Optimal charging of capacitors

Bart DesoeteAlexis De Vos

Optimization of the master-slave inverter system for grid-connected photovoltaic plants.

W MARANDAGilbert De MeyAlexis De Vos

A1 Journal Article in ENERGY CONVERSION AND MANAGEMENT

Reversible logic for digital computers

1997

Analysis of combined systems of two endoreversible engines

Alexis De VosJ ChenB Andresen

A2 Journal Article in OPEN SYSTEMS & INFORMATION DYNAMICS

Towards reversible digital computers

1996

A Chip For Reversible Digital Computers

Alexis De VosW MARANDA

Introduction to r-MOS systems

1995

A 12-transistor c-MOS building-block for reversible computers

A2 Journal Article in International Journal of Electronics

Integrated CMOS sensor with voltage output proportional to the absolute temperature

W WOJCIAKAlexis De VosA NAPIERALSKI

Multiple source photovoltaics

P LANDSBERGAlexis De VosP BARUCHJ PARROT

On the CdS/CuInSe2 conduction band discontinuity

A NIEMEGEERSMarc BurgelmanAlexis De Vos

A2 Journal Article in APPLIED PHYSICS LETTERS

Reversible Digital Chip in C-MOS

Alexis De VosM GRYGOLECD BUKAT

1994

Reversible computing in C-MOS

1993

Neural networks in analog silicon chips

A2 Journal Article in CC-AI

The efficiency of the conversion of solar-energy into wind energy by means of Hadley cells

Alexis De VosP Vanderwel

A1 Journal Article in THEORETICAL AND APPLIED CLIMATOLOGY

1991

A comparison of some efficiency factors in photovoltaics

P. LandsbergAlexis De VosP. Baruch

A1 Journal Article in JOURNAL OF PHYSICS-CONDENSED MATTER

Endoreversible thermodynamics and chemical reactions

A1 Journal Article in JOURNAL OF PHYSICAL CHEMISTRY

Hysteresis loops of ferroelectric liquid-crystal displays

C ReynaertsAlexis De Vos

A1 Journal Article in FERROELECTRICS

Optical characteristics of ferroelectric liquid-crystal cells

Alexis De VosC ReynaertsFrank Cuypers

A1 Journal Article in FERROELECTRICS

The maximum efficiency of the conversion of solar energy into wind energy

Alexis De VosG. Flater

A1 Journal Article in AMERICAN JOURNAL OF PHYSICS

The quantum diode

A1 Journal Article in SEMICONDUCTOR SCIENCE AND TECHNOLOGY

1989

Optical symmetry in liquid-crystal displays

Frank CuypersAlexis De Vos

A1 Journal Article in LIQUID CRYSTALS

Optical-transmission of chevron-type ferroelectric liquid-crystal displays

A1 Journal Article in LIQUID CRYSTALS

Optical-transmission of ferroelectric liquid-crystal displays

Alexis De VosC Reynaerts

A1 Journal Article in JOURNAL OF APPLIED PHYSICS

Polarisation against voltage hysteresis loop of surface-stabilised ferroelectric liquid-crystals

C ReynaertsAlexis De Vos

A1 Journal Article in JOURNAL OF PHYSICS D-APPLIED PHYSICS

1988

Thermodynamics of radiation energy-conversion in one and in 3 physical dimensions

A1 Journal Article in JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS

1987

Photovoltaics in a single dimension

A1 Journal Article in SOLID-STATE ELECTRONICS

Reflections on the power delivered by endoreversible engines

A1 Journal Article in JOURNAL OF PHYSICS D-APPLIED PHYSICS

1984

Comment on a controversy between M. Castans and S. Jeter

Alexis De VosHerman Pauwels

A2 Journal Article in SOLAR ENERGY

1983

Diagnosis of a large distributed series resistance in solar-cells

Alexis De VosPatrick De Visschere

A1 Journal Article in SOLAR CELLS

Evaporation of CUCL and CUCL2 for the fabrication of CU2S/CDS thin-film solar-cells

Marc BurgelmanAlexis De Vos

A1 Journal Article in THIN SOLID FILMS

X-ray-diffraction study of the dry formation of Cu2S-CdS solar-cells

Alexis De VosK StevensL VandendriesscheMarc Burgelman

A1 Journal Article in SOLAR CELLS

1982

Fundamental diode-noise

A1 Journal Article in PHYSICA A

On the formula for the upper limit of photo-voltaic solar-energy conversion efficiency

Alexis De VosC GrosjeanHerman Pauwels

A1 Journal Article in JOURNAL OF PHYSICS D-APPLIED PHYSICS

1981

Analysis of photovoltaic systems including a battery storage

Gilbert De MeyH SimoensAlexis De Vos

A1 Journal Article in INTERNATIONAL JOURNAL OF ELECTRONICS

Determination of the maximum efficiency solar-cell structure

Herman PauwelsAlexis De Vos

A1 Journal Article in SOLID-STATE ELECTRONICS

On the upper limit of the energy-conversion efficiency in tandem solar-cells

CC GrosjeanAlexis De Vos

A1 Journal Article in JOURNAL OF PHYSICS D-APPLIED PHYSICS

1980

Detailed balance limit of the efficiency of tandem solar-cells

A1 Journal Article in JOURNAL OF PHYSICS D-APPLIED PHYSICS

1977

Collection efficiency of heterojunction solar-cells

Alexis De VosHerman Pauwels

A1 Journal Article in IEEE TRANSACTIONS ON ELECTRON DEVICES

Influence of deposition rate on electrical-properties of thin-tellurium films

Alexis De VosJ Aaerts

A1 Journal Article in THIN SOLID FILMS

1975

Diffusion phenomena at interface of CdSe and PTFE thin-films

A1 Journal Article in SOLID-STATE ELECTRONICS

Bandgap Effects in Thin-Film Heterojunction Solar Cells. CEC. Proceedings of the 12th European Photovoltaic Solar Energy Conference, H.S. Stephens & Associates, pp. 1315-1318, Amsterdam, 1994.

Alexis De VosJ PARROTTP BARUCHP LANDSBERG

Carnot Engines, Groebner Bases and all the Winds on the Earth. The CAGe Reports, Vol. 9, pp. 1-20, 1993.

Device Simulation of Polycrystalline Heterojunction Solar Cells. CEC. Proceedings of the 12th European Photovoltaic Solar Energy Conference, H.S. Stephens & Associates, pp. 1557-1560, Amsterdam 1994.

Marc BurgelmanAlexis De VosAlex Niemegeers

Effect of Band-Band Impact ionisation on the Efficiency of Heterojunction Solar Cells CEC. Proceedings of the 12th European Photovoltaic Solar Energy Conference, H.S. Stephens & Associates, pp. 1343-1346, Amsterdam, 1994.

P LANDSBERGJ LIAKOSAlexis De Vos

Hysteresis Loops of Ferroelectric Liquid Crystal Displays. Ferroelectrics, 1991, Vol. 113, pp. 439-452.

C REYNAERTSAlexis De Vos

Is a Solar Cell an Endoreversible Engine ? Solar Cells, 1991, Vol. 31, pp. 181-1%.

Neural Chip with CMOS Multiple-Input OTA. Proceedings of the Advanced Training Course on Mixed Design of VLSI Circuits, Tempus -IEEE., pp. 90-95, Debe, 1994.

T KACPRZAKJ PACHOLIKM GRECKITW PLESKACZZ JAWORSKIAlexis De Vos

Optical Characteristics of Ferroelectric Liquid Crystal Cells. Ferroelectrics, 1991, Vol. 113, pp. 467-487.

Alexis De VosC REYNAERTSF CUYPERS

The Shockley-Queisscr Argument as the Limiting Case of a more Accurate Theory. Proc. of the 10th E.C. Photovoltaic Solar Energy Conference, 1991, pp. 1407-1408.

P LANDSBERGAlexis De VosP BARUCH